Keeping Velocettes Alive

Members Questions & Answers

The Velocette Technical Forum run by Dai Gibbison has replaced this Q&A section.
Dai's Forum is at  but before visiting it click HERE to find out how it works.

Click on the category of a question to follow its thread. The number after the category is the number of responses so far.
(Q's in Red still need a definitive answer from someone who really knows, but other additions are no longer possible.)

The information, including advice and suggested modifications, contained in has not been approved, tested or otherwise checked by the Velocette Owners' Club.  Before acting on information, advice or suggested modifications published in the website you should always obtain technical advice and, if appropriate, have a professional motorcycle engineer carry out the work for you. The Velocette Owners' Club cannot accept liability for any loss, damage or claims occurring as a result of any modifications or work or other action carried out on the advice or based on the suggestions given in this website and (save for death or personal injury arising from negligence) all such liability is hereby excluded.

- how can I value or dispose of an inherited Velocette? - Various, TW 18/7/2000
what should I look out for in a Velo I'm considering buying? - Graham Byett, TW 18/8/2000, DR, TW 12/9/2000
- where can I buy a left-handed Velocette as in Fishtail 310? - Tony Ainley 23/9/2000, George Tofield, 21/10/2000
- where are the engine and frame numbers? - Jeremy Smith, TW 9/7/2003

- what jetting for a MK2 Amal Concentric? - Eric Cox 13/3/2003, Neville Smith 4/5/2003
CA002 CARBURETTOR(4) - why a banging in the exhaust? - Frank Dunning, TW 15/4/2003, Frank Dunning, TW 16/4/2003
CA003 CARBURETTOR(2) - settings for a Concentric 930 R300 on a Venom Clubman? - Hein Rollmann, TW 7/5/2003
CA004 CARBURETTOR(4) - why spitting back and unreliable idling? - Steven Buck, TW 24/6/2003, SB, TW 28/6/2003
CA005 CARBURETTOR(1) - what air filter to fit with a Concentric Mk I? - John Holland 12/3/2004 
CA006 CARBURETTOR(3) - sticking float on a Concentric/alternative carbs and settings for an MSS?- Marcus Hasted, TW 31/8/2004, MH 1/9/2004
CA007 CARBURETTOR(1) - settings for a 28mm Concentric on a Viper? -
David Leece, TW 2/7/2006
monobloc versus 276 on an MSS? - Bruce Moore 27/12/2006
settings for a Mikuni? - John Hoskins 18/6/2008

POST-WAR OIL LEAKS/CHAINCASE(3) - how can I make the chaincase completely oil-tight? - TW, TW 10/6/2000, Dai Gibbison 26/8/2000
CC002 POST-WAR OIL LEAKS/CHAINCASE(5) - what is the correct length for the "Inner" Chaincase distance piece (i.e. the item which fits directly onto the fixing bolt)? - Alan Stevenson 27/10/2000, TW 28/10/2000, Roger & Jane Franklin 4/12/2000, Dai Gibbison 14/12/2000, Bill Couzens| 10/8/2006
CC003 POST-WAR OIL LEAKS/CHAINCASE(4) - what should the gap between clutch outer plate and chaincase be? - Roger Hinton 14/3/2002, TW, RH, TW
CC004 POST-WAR OIL LEAKS/CHAINCASE(2) - can I run the chaincase without oil and use a chain lube instead? - Roger Hinton 11/5/2002, TW 12/5/2002
CC005 POST-WAR OIL LEAKS/CHAINCASE(2) - how to get the correct clearance for a 'neoprene' seal - Hein Rollmann, TW 3/4/2003
CC006 POST-WAR OIL LEAKS/CHAINCASE(2) - best way to fit the band-type seal? - David Royston, TW 4/12/2004

CH001 CHAIN(2) - does a Venom need a half-link, and what make of chain? - David Royston, TW 28/6/2002

CL000 CLUTCH(1) - what are some points to watch when assembling a clutch? - (Various), TW 
CL001 CLUTCH(6) - why is changing down very crunchy, but changing up and selecting neutral is fine? - TW, Bob Higgs, TW, BH 10/6/2000, Ron Sabey, TW 23/2/2001, 6/7/2001, 10/10/2001
CL002 CLUTCH(2) - length of thrust pins? - George Tofield 24/6/2000, Dai Gibbison 26/8/2000
CL003 CLUTCH(5) - why is the clutch slipping (and dragging), how do you stop the springs 'cockling' - Grant Kinnaird 13/1/2001, TW 14/1/2001, GK, TW, TW
CL004 CLUTCH(2) - adjusting a dragging clutch - Colin Bonfield 9/6/2001, TW 
CL005 CLUTCH(3) - why is there drag when I try to engage 1st gear, but not when testing with the kickstarter - Christian Soe-Jensen, TW 7/8/2001, Christian Soe-Jensen 11/10/2001
CL006 CLUTCH(2) - I have adjusted it properly, so why does my Thruxton clutch still drag? - Mithra  Neumann, TW 28/10/2001, Mithra Neuman, TW 29/10/2001 
CL007 CLUTCH(8) - my outer plate has too little clearance from the chaincase - Gilles Glachant 8/11/2001, TW 10/11/2001, GC, TW, GC, TW 23/10/2002, GC 24/10/2002, GC 24/6/2003 [plus corrections added by TW 7/3/2003 & 2/6/2003]
CL008 CLUTCH(5) - why is it dragging? - Roger Hinton, TW 17/3/2002, RH, TW, RH 17/4/2002, 
CL009 CLUTCH(7) - why stiff upwards changes? - Alan Lawrence, TW 23/4/2002, Alan Lawrence, TW 24/4/2002, Alan Lawrence, TW 25/4/2002, Alan Lawrence 3/5/2002
CL010 CLUTCH(4) - why a crunch on engaging first gear? - Roger Hinton, TW 28/6/2002, RH 29/6/2002, RH 8/8/2002
CL011 CLUTCH(2) - do thicker plates need longer thrust pins - Hein Rollmann, TW 2/10/2002
CL012 CLUTCH(4) - can these tight clearances be correct?- Paul S. Greenberg 5/3/2003, TW, Paul S. Greenberg 6/3/2003, TW 7/3/2003
CL013 CLUTCH(5) - why is it heavy? - Roger Hinton, TW 10/4/2003, Roger Hinton, TW 11/4/2003, Roger Hinton 18/4/2003
CL014 CLUTCH(6) - renovation of friction plates? - John Phelps, TW 28/5/2003, Roly Crisp, TW 2/6/2003, Roly Crisp, TW 3/6/2003
CL015 CLUTCH(2) - what is the method for setting the shimming for the thrust cup? - Eric Cox, TW 7/6/2003
CL016 CLUTCH(2) - where to obtain corks for a '39 MAC? - Jim Down 2/4/2004, Jim Down 15/7/2004
CL017 CLUTCH(2) - why won't the sleeve gear nut engage? - Richard Stevenson, 3/6/2006, Sten von Wachenfeldt, 13/6/2006
CL018 CLUTCH(1) - did the late sleeve gear nuts have no locking plate? - David Bevis 29/5/2007

CS001 CONTACTS/SERVICES(2) - anyone know of Velocette engineering services in Hampshire/Sussex/Surrey area? - Dorian Burrows 7/8/2000, Grant Kinnaird 22/11/2000
where can I get a model Venom engine? - Roy Harvey 16/7/2003

- details of the fitting brackets etc needed, with a view to remanufacture - Mark Rayner 5/2/2001, Roger Franklin 23/4/2001, Stewart Muir  5/9/2001

advice on enlarging a KSS engine towards 500cc requested - Dai Gibbison 16/3/2001, Clay Burton 29/3/2001, Dai Gibbison 2/5/2001, 
is it OK to use an anti-drain ball valve? - Dai Gibbison 2/5/2001, Dai Gibbison 23/6/2002
- what spark plug for a 1934 Mk I KSS, and where can they be obtained? - Harry Nicholson 19/11/2001, Jim Plant 28/11/2001
EK004 KSS/KTS ENGINE(1) - how to stop oil escaping from the valves on a Mk I - Steve Eade 28/3/2001
EK005 KSS/KTS ENGINE(1) - where can a breather go? - Clay Burton 15/12/2001
EK006 KSS/KTS ENGINE(1) - alternative engine shock absorber assembly for a Mk.1 KSS? - Neale Smith 12/8/2002
EK007 KSS/KTS ENGINE(2) - which modern spark plug for a 1936 KSS Mk II? - Dave Hatch 12/8/2004, DH 13/8/2004
EK008 KSS/KTS ENGINE(1) - are parts available for my KNSS aspin rotary valve Velocette engine? - Andrew King 24/3/2005
EK009 KSS/KTS ENGINE(1) - where does K38/6 fit and what are its dimensions? - Trevor Cason 30/3/2005
EK010 KSS/KTS ENGINE(2) - cause of bevel whine; size of exhaust nut on Mkll ? - John Hoskins 18/6/2007, Ron Sabey 31/12/2007
EK011 KSS/KTS ENGINE(1) - what balance factor on a 1936 KSS? - Leo Middelberg 2/12/2007

EL001 ELECTRICAL(4) - am I getting the wiring right for my JG unit? - Ron Sabey, TW 10/2/2001, Ron Sabey, TW 23/2/2001
suitable dynamo belts, and how to adjust? - David Royston, TW 28/2/2001 
- where can I get a suitable solid-state 6v regulator? - Brian McKeown 28/6/2001, TW 29/6/2001
how can I check if my dynamo is working? - Steve Bland, TW 20/11/2001
why is my dip-switch shorting; and my ammeter flickering? - John Allen, TW 16/12/2001
- what should the connections be to use a Lucas regulator with a Miller dynamo? - Alan Young 24/1/2002, Alan Lawrence 5/7/2002
- where can I get a 12v "black case" battery? - Reg Callow, TW 28/4/2002, George Lunt, TW 16/5/2002
- why is my dynamo running with the engine stopped/should it be positive or negative earth? - John Shipman, TW 9/5/2002, JS, TW 12/5/2002
why isn't my dynamo charging? - Frank Dunning, TW 12/8/2002, FD, TW 13/8/2002, FD, TW 14/8/2002, John Hannis in FT326, David Thomas in FT326
how can you identify a 60W Miller dynamo versus a 35W Miller? - Mick Dennis, TW 30/8/2002, Dougal Burns 2/1/2003, Tony Ainley 10/1/2003
advice on conversion to an alternator requested, particularly the Alton with Interspan electronic ignition - Paul Rochmis, TW 16/9/2002, Dave Reid 18/9/2002, Eric Cox 25/10/2002, Gilles Glachant 21/11/02, Andrew Barnes 21/1/2003, Ian Medd, Andrew Barnes, Dai Gibbison 14/5/2004, Ian Medd 2/6/2004, TW 15/6/2004
EL012 ELECTRICAL(1) - advice on conversion of KTP points and use of an alternator requested - Jimmy Burns 22/9/2002
why is my new regulator causing my Miller dynamo to overcharge? - Paul Martin, TW 1/11/2002, PM, TW 7/11/2002, PM 9/11/2002
EL014 ELECTRICAL(2) - is timing a BTH magneto different from a Lucas? - Jon Hurst, TW 7/11/2002
- does a 12volt conversion need the dynamo to run faster? - David Royston, TW 11/11/2002.
why did my magneto drive-shaft snap? - Gilles Glachant, TW 10/12/2002
why little benefit from converting to a 12v headlight? - Bryan Clarke 25/1/2003, TW 26/1/2003, Roger Hinton 13/3/2003
- why is my battery overheating, is my JG unit faulty? - Steve Orme 2/2/2004, TW 3/2/2004, SO 9/2/2004
- where to put a heat sink? - John Holland, TW 12/3/2004 
EL020 ELECTRICAL(5) - how to sort out a possible wiring fault? - Reg Taylor, TW 9/10/2004, RT, TW 10/10/2004, RT 11/10/2004
EL021 ELECTRICAL(2) - will an 8-0-8 Miller Ammeter handle 12v? - Ashley Jenkins, TW 30/8/2005
EL022 ELECTRICAL(4) - is my higher dynamo speed causing low charge problems? - Dave Disney, TW 19/1/2007, Dave Disney, TW 8/2/2007

why a sudden but temporary loss of compression? - Will Noble 10/4/2001, TW 17/4/2001
- advice on renovating rocker bearings please? - Peter Swift 28/5/2001, Dai Gibbison 16/10/2001, PS, TW 16/3/2002, Peter Swift, TW 17/3/2002, PS, TW 18/3/2002, Dai Gibbison 16/4/2002, PS 19/4/2002
EM003 MAC ENGINE(2) - why apparently poor scavenging/where to get an oil-pump overhauled in Australia? - Graham White 13/6/2002, TW 12/6/2002
EM004 MAC ENGINE(6) - why does the crankcase flood? - Paul Greenberg, TW 20/8/2002, PG, TW 22/8/2002, PG 26/8/2002, TW 27/8/2002
EM005 MAC ENGINE(2) - what balance factor on a 1936 MAC? - Leo Middelberg 22/12/2002, 2/12/2007
EM006 MAC ENGINE(3) - why doesn't my valve lifter work? - Keith Reynolds, TW 29/11/2003, KR 30/11/2003
EM007 MAC ENGINE(1) - what spec is the alloy of the MOV crankcases? - Greg Summerton 29/2/2004
EM008 MAC ENGINE(2) - do I need to use fuel additives? - Andrew Baxter, TW 24/5/2005, AB, TW 25/5/2005
EM009 MAC ENGINE(1) - what lift does the M17/6 cam give? - Sten von Wachenfeldt 13/6/2006

ES001 MSS ENGINE(1) - a smoking iron MSS; what were the piston and oiling changes to the MSS engine around 1937? - Martin Hughes 21/9/2003
what diameter are the Iron MSS inlet and exhaust valves - Bob Gussman 24/11/2004, BG 27/11/2004

VM ENGINE(10) - why does it pump oil into the primary chaincase? - TW, TW 10/6/2000, Dougal Burns 1/12/2000, TW 1/12/2000, DB, TW 3/12/2000, DB, TW 5/12/2000, DB, TW
EV002 VM ENGINE(2) - what oil and petrol should I use? - Dougal Burns 15/9/2000, TW 16/9/2000
EV003 VM ENGINE(2) - anyone know a source for rings for a 30 thou oversize Hepolite 86mm piston? - George Tofield, 20/10/2000, Tony Ainley 7/7/2001
EV004 VM ENGINE(4) - how can I change my oil with minimum mess? - David Royston 24/10/2000, TW 24/10/2000, DB 6/2/2001, Will Noble 12/4/2001
EV005 VM ENGINE(24) - why is my Viper stalling under load? - David Royston 11/11/2000, TW 12/11/2000, DR, TW, DR, TW, DR, TW, DR, TW, DR, TW, DR, TW, DR, TW, DR, TW DR, TW, DR, TW, DR, TW, DR, TW
- why is oil leaking from bottom of push-rod cover tube, at front? - David Royston 11/11/2000, TW 12/11/2000, DR 30/12/00, TW 30/12/00
EV007 VM ENGINE(2) - how to adjust the exhaust valve lifter cable? - Bob Hodgkins, TW 3/1/2001
EV008 VM ENGINE(3) - valve timing/alignment of timing marks? - Dougal Burns 15/1/2001, TW 16/1/2001, DB, TW, DB
EV009 VM ENGINE(5) - anyone know a supplier of a spanner/device that will permit removal of the magneto nuts? - Dougal Burns 2/2/2001, TW, DB, Richard Pack 2/3/2001, Ian Lacey 9/11/2001
EV010 VM ENGINE(2) - what modern oils do I use? - Ian Allan 23/3/2001, TW 27/3/2001
EV011 VM ENGINE(2) - how much damage from a stripped fibre magneto gearwheel? - John Minary, TW 26/4/2001
EV012 VM ENGINE(5) - how should I stop my Viper engine? - Brian McKeown 28/6/2001, TW 29/6/2001, Brian McKeown , TW 30/6/2001, Derek Williams 23/12/2004
EV013 VM ENGINE(2) - where can I get a +60thou MSS barrel resleeved - Pete 25/7/2001, Tony Ainley 25/8/2001
EV014 VM ENGINE(5) - how can I get my cylinder barrel off, and then repaint it - Dougal Burns, TW 6/11/2001, DB, TW 8/11/2001, DB, TW 25/1/2002 
EV015 VM ENGINE(2) - advice on preparing to starting my Viper after it has been standing for 9 years - Peter Gidlow 24/11/2001, TW 25/11/2001
EV016 VM ENGINE(3) - how to convert from hairpin valve springs to coil springs? - Pete Kendall, TW 4/1/2002, Paul Webb 24/4/2002
EV017 VM ENGINE(2) - what should the float-chamber fuel level be on a Monobloc? - Mel Ensor 16/1/2002, Derek Costello 12/10/2009
EV018 VM ENGINE(2) - are +60 over-bores and pistons and oversize guides available? - Sam Glenn, TW 12/2/2002
EV019 VM ENGINE(2) - what's causing smoke when hot - Ronnie Hoare, TW 19/2/2002
EV020 VM ENGINE(2) - what is the likely cause of my knocking noise - Bernard Langdon, TW 19/2/2002
EV021 VM ENGINE(4) - how to set end-float on the cam spindle - John Holland, TW 17/3/2002, Dai Gibbison 16/4/2002, Bill Couzens| 10/8/2006
EV022 VM ENGINE(4) - what caused my seizure? - Alex Mackay, TW 27/3/2002, Alex Mackay, TW 6/7/2002
EV023 VM ENGINE(2) - how long is a Venom pushrod? - John Holland, TW 8/4/2002
EV024 VM ENGINE(2) - how can I tell if my valves and seats suit unleaded?- Trevor Dingle, TW 22/4/2002
EV025 VM ENGINE(2) - why has my Viper no compression and won't start when hot? - Arthur J Stevens, TW 30/4/2002
EV026 VM ENGINE(2) - what's causing smoking on start-up but there's the normal amount oil in the crankcase? - Roger Hinton, TW 21/5/2002 
EV027 VM ENGINE(3) - what torque for the head nuts? -  Ronnie Houston, TW 24/5/2002, Alex Wood 11/12/2002
EV028 VM ENGINE(3) - how stiff should the valve lifter be? - Marcus Hasted, TW 12/6/2002, Bill Couzens| 10/8/2006
EV029 VM ENGINE(3) - why is it smoking on tickover? - Mike Simmons 25/6/2002, TW 26/6/2002, Roger Hinton 10/3/2003
EV030 VM ENGINE(2) - which spark plugs, what do the Champion codes mean? Steve Bland, TW 8/7/2002
EV031 VM ENGINE(5) - why does tickover speed up/oil on fins? - Frank Dunning, TW 14/7/2002, FD, TW 15/7/2002, FD 30/7/2002
EV032 VM ENGINE(27) - why did my piston acquire a hole/some important points for the engine rebuild? - David Royston, TW 25/7/2002, DR, TW, DR 26/7/2002,  DR, TW, TW, DR 27/7/2002, TW, DR 28/7/2002, DR, TW 17/8/2002, DR 19/8/2002, DR, TW 24/8/2002, DR, TW 31/8/2002, DR 1/9/2002, TW 2/9/2002, DR, TW 3/9/2002, DR 4/9/2002, TW 5/9/2002, DR, TW 8/9/2002, Roly Crisp 31/5/2004
EV033 VM ENGINE(2) - what carb can replace the Monobloc on my MSS? - Bob Falconer 2/8/2002, TW 6/8/2002
EV034 VM ENGINE(2) - how many compression plates? - Craig Farrington, 2/8/2002, TW 6/8/2002
EV035 VM ENGINE(2) - re-sleeving an alloy barrel: how hot does a Venom get? - Eric Cox, TW 9/8/2002
EV036 VM ENGINE(2) - where exactly should the breather hole be drilled? - Mike Robinson, 14/9/2002, TW 15/9/2002
EV037 VM ENGINE(13) - is pinking normal on a Velocette? - Hein Rollmann, Amsterdam, TW 25/9/2002, HR, TW 26/9/2002, HR, TW 27/9/2002, HR, TW 2/10/2002, HR, TW, HR, TW  9/10/2002, Dai Gibbison 5/5/2003
EV038 VM ENGINE(9) - how to repair a stripped rocker oil feed union thread? - David Royston, TW 3/10/2002, DR, TW 5/10/2002, Tony Ainley 7/10/2002, DR 22/10/2002, TW 23/10/2002, DR 24/10/2002, Philip Brown 9/7/2003
EV039 VM ENGINE(2) - what are the dimensions for a needle roller conversion for the camshaft? - Rolf Minkenberg 9/11/2002, RM 4/6/20032
EV040 VM ENGINE(2) - what alternative pistons for a longstroke Venom?- Rolf Minkenberg 9/11/2002, RM 4/6/20032
EV041 VM ENGINE(1) - is a 32mm Concentric suitable for a Thruxton; why does it spit back/any advice on why an Italian piston holed and how to recover? - Michael Walker 12/11/2002
EV042 VM ENGINE(2) - does my "piston slap" merit attention? - David Royston 1/1/2003, TW 2/1/2003
EV043 VM ENGINE(4) - experience of a 10TT9 carb?  - Andrew Barnes, TW, AB, TW 21/1/2003
EV044 VM ENGINE(2) - why does my engine smoke in just one circumstance? - Rob Nelson 22/1/2003, TW 23/1/2003
EV045 VM ENGINE(2) - which barrels were painted black? - Michael Gregor 5/1/2003
EV046 VM ENGINE(1) - analysis of the Venom engine design and "pinking" - Ingebrigt Valberg 18/3/2003
EV047 VM ENGINE(1) - analysis of the Venom cam design - Ingebrigt Valberg 20/8/2003
EV048 VM ENGINE(4) - where can I get a piston, and do I need some compression plates? - Steven Buckley, TW 27/9/2003, SB, TW 28/9/2003
EV049 VM ENGINE(4) - how do I free a rusted piston? - Robin MacLeod, TW 24/10/2003, RMacL, TW 25/10/2003
EV050 VM ENGINE(2) - where can I get Fath valve springs or an equivalent? - Nigel Bursnell 3/2/2004, Tony Ainley 13/2/2004
EV051 VM ENGINE(2) - where can I get the special magneto stud nuts? - Gary Ingraham, TW 17/6/2004
EV052 VM ENGINE(1) - has anyone else had valve seizures when using fuel additives? - Mick Thorp 15/10/2004
EV053 VM ENGINE(1) - what is the cold interference fit for the oil-pump? - David Breetwor 3/4/2005
EV054 VM ENGINE(1) - where can I get a 12:1 Venom piston? - Roy Harvey 27/5/2005
EV055 VM ENGINE(2) - where can I get an alloy Viper barrel re-sleeved? - Martin Chlebek, TW 6/7/2005
EV056 VM ENGINE(1) - can cams slip on the camwheel? - Melvyn Ward 29/11/2005 
EV057 VM ENGINE(2) - why no tickover when hot? - Tim Wall 3/1/2006, Roger Hinton 17/1/2006
EV058 VM ENGINE(2) -  is my oil loss caused by an incorrect breather? - Stuart Thomson, TW 24/1/2006
EV059 VM ENGINE(2) - why is it smoking on start-up? - Keith Whitehead 1/4/2006
EV060 VM ENGINE(1) - suitable switch to replace anti-drain ball-valve? - Ian Bell 15/4/2006
EV061 VM ENGINE(2) - how many compression plates as standard? - Ron Wardale, TW 19/6/2006
EV062 VM ENGINE(2) - how to check valve timing? - Brian Taylor, TW 13/2/2008

EX001 VM EXHAUST/SILENCER(2) - can a sweptback pipe fit with standard footrests? - Pete Taylor  8/1/2001, TW 9/1/2001 
proper fit of the pipe on the exhaust port stub? - Peter Swift 20/1/2001, TW 20/1/2001, Dai Gibbison 23/2/2001, Ian Medd 5/3/2001
EX003 VM EXHAUST/SILENCER(4) - what difference does the smaller diameter exhaust pipe make? -  Alasdair Dick 21/3/2001, TW, AD, Barnaby Waylen 6/10/2001
EX004 VM EXHAUST/SILENCER(2) - will a 'Thruxton type' fit my standard Viper (and give more ground clearance)? - David Royston, TW 19/11/2001
EX005 VM EXHAUST/SILENCER(5) - is a baffle tube needed? - Geoff Heppell, TW 14/7/2002, GH 15/7/2002, GH, TW 16/7/2002
EX006 VM EXHAUST/SILENCER(2) - should the rear spindle touch the silencer? - John Phelps, TW 31/3/2003

FA001 FITTING ACCESSORIES(2) - how to add panniers, indicators? - Colin Bonfield 9/6/2001, TW 
FA002 FITTING ACCESSORIES(1) - how to fit an Avonaire fairing? - Michael Newman 27/2/2005

FB001 FRONT BRAKE(8) - cure for front-brake shudder? - David Royston , TW 23/12/2000, DR, TW, DR, TW, DR, TW
FB002 FRONT BRAKE(2) - what are the dimensions of the spacer, Part No. W52/3? - Alex Wood 17/1/2001, Dai Gibbison 26/2/2001
FB003 FRONT BRAKE(1) - what is the maximum diameter that a front brake drum can be reliably skimmed to?. - Eric Cox 8/2/2002
FB004 FRONT BRAKE(2) - what is needed to fit a TLS? - Alex Wood, TW 9/12/2003

FK001 FRONT FORKS(6) - have I got faulty damping? - David Royston , TW 23/12/2000, DR, TW, DR, TW, DR, TW
FK002 FRONT FORKS(2) - how to check the condition of a used set of forks? - Akiba Yoichiro, TW 28/4/2002 
FK003 FRONT FORKS(2) - why won't my spring dust cover tighten up - David Royston, TW 6/5/2002
FK004 FRONT FORKS(4) - how to seal a leak from bottom bracket? - David Royston, TW 19/5/2002, Allan Thomas 6/6/02, David Royston 24/6/2002.
FK005 FRONT FORKS(4) - why is my split collar protruding inwards too much? - Allan Thomas, TW 6/6/2002, Allan Thomas 23/6/02, TW 28/6/2002
FK006 FRONT FORKS(3) - where can I get Dowty forks converted to use springs? - Dave Lawless, TW 19/8/2002, DL 31/8/2002
FK007 FRONT FORKS(1) - why is it 'fluttering'? - Andrew Barnes 23/1/2003
FK008 FRONT FORKS(2) - what were the original dimensions for the late model MkI KSS front girder Webb fork C1935? - Warwick Nicholson 10/2/2003, Harry Nicholson 25/2/2003
FK009 FRONT FORKS(3) - why does one leg on my MAC hit the tank? - Keith Reynolds, TW 29/11/2003, KR 30/11/2003
FK010 FRONT FORKS(5) - why am I having problems with assembly? - Reg Taylor, TW 12/2/2004, RT, TW 13/2/2004, RT 14/2/2004
FK011 FRONT FORKS(2) - how to remove a stuck fork leg? - Alan Parker, TW 15/1/2005
FK012 FRONT FORKS(1) - how does air get in and out of a Velo tele fork, or is it partially "air-sprung"? - Andrew Baxter 7/8/2005

FV001 VM FRAME(2) - should a 1960 Venom have a centrestand? - Dougal Burns 15/9/2000, TW 16/9/2000
FV002 VM FRAME(4) - is there a knack to putting my Viper on its centre-stand? -  David Royston 9/10/2000, TW 10/10/2000, George Tofield, 31/10/2000, DR 27/12/2000 
FV003 VM FRAME(4) - should I try to replace my own swinging arm-bushes? - Bob Hodgkins 30/5/2001, TW, BH, Mel Ensor 19/1/2002
FV004 VM FRAME(3) - how to remove end-float on trunnion shaft? - Ian Medd 21/9/2001, TW 22/9/2001, Ian Medd 10/10/2001
FV005 VM FRAME(3) - where can I get a carrier? - Clive Larby, TW 17/4/2002, Alan Lawrence 30/4/2002
FV006 VM FRAME(2) - how should I straighten a bent upper suspension bracket? - David Royston 16/4/2002, TW 18/4/2002
FV007 VM FRAME(2) - where is the frame number? - John Shipman, TW 9/5/2002
FV008 VM FRAME(2) - can I rotate the trunnion shaft to take up wear? - David Royston, TW 9/5/2002
FV009 VM FRAME(5) - how can the tubes be welded successfully? - Roger Hinton 13/6/2002, TW 14/6/2002, RH 14/6/2002, RH, TW 7/8/2003
FV010 VM FRAME(3) - how is the toolbox attached; was there a factory steering lock reducer? - David Price, TW 27/9/2002, Tony Ainley 7/10/2002
FV011 VM FRAME(1) - experience of switching the Venom engine to a Featherbed frame? - Andrew Barnes 23/1/2003
FV012 VM FRAME(2) - does the centre stand fit with rearsets? - Craig Farrington, TW 28/5/2004
FV013 VM FRAME(1) - was a saddle available for the springer models rather than a dualseat? - Gary Ingraham 6/7/2005
FV014 VM FRAME(1) - where can I get a frame straightened? - Mike Craig 7/8/2005
FV015 VM FRAME(1) - how to press in the trunnion bushes? - Raymond Albeson 10/1/2007

GB001 GEARBOX/KICKSTARTER(7) - kickstarter spring replaced with a new one, so why does it return so slowly? - Roy Solomon, TW 10/6/2000, Dougal Burns 26/4/2001, TW, DB, TW, Dougal Burns 29/8/2001
GB002 GEARBOX/KICKSTARTER(2) - what is the reason for my sleeve gear oil leak? - John Willcox 15/3/2001, TW 18/3/2001
GB003 GEARBOX/KICKSTARTER(2) - how to seal the gearchange bush? Adrian Bowman 8/5/2001, Jim Plant 6/7/2001
GB004 GEARBOX/KICKSTARTER(2) - my Viper has a /14, what effect will this have? - Frank Dunning, TW 18/12/2001
GB005 GEARBOX/KICKSTARTER(3) - why does the kickstarter move down while I'm riding? - David Royston, TW 5/2/2002, DR 17/2/2002
GB006 GEARBOX/KICKSTARTER(14) - why does my ratchet slip without a hardened washer? - Garry Tomlins, TW 17/2/2002, GT, TW 20/2/2002, GT, TW 23/2/2002, GT,  TW, GT, TW 24/2/2002, GT, TW 2/3/2002, GT, TW
GB007 GEARBOX/KICKSTARTER(2) - what effect will a prefix 14 box have on my Viper's gearing - Frank Dunning, TW 19/12/2001
GB008 GEARBOX/KICKSTARTER(2) - details of the kickstart shaft oil seal modification from F.T.234? - Gordon Roberts 11/4/2002, Dai Gibbison 7/6/2002
GB009 GEARBOX/KICKSTARTER(2) - how can a Clubman's reversed gear-lever be made adjustable? - George Lunt, TW 17/5/2002
GB010 GEARBOX/KICKSTARTER(5) - where has top-gear gone, how straight-forward is the gearbox? - Paul Greenberg 26/8/2002, TW 27/8/2002, PG 28/8/2002, TW 30/8/2002, PG 28/10/2002
GB011 GEARBOX/KICKSTARTER(6) - how to stop a sleeve-gear bearing lock ring loosening - Kei Kubota, TW 26/9/2002, Tony Ainley 7/10/2002, KK, TW 11/10/2002, KK 14/10/2002
GB012 GEARBOX/KICKSTARTER(6) -  why doesn't my kickstarter ratchet engage fully? - Richard Pack, TW 12/12/2002, RP, TW 13/12/2002, RP 2/1/2003, TW 3/1/2003
GB013 GEARBOX/KICKSTARTER(3) - why is the first gearwheel on the mainshaft contacting the end-cover? - Graham Lockwood 27/2/2003, TW 28/2/2003, Graham Lockwood 8/5/2003
GB014 GEARBOX/KICKSTARTER(3) - what layshaft endfloat; what thickness gasket; how many dogs on a sleeve gear? - Brian Mckeown, TW 2/3/2003, Brian Mckeown 3/3/2003
GB015 GEARBOX/KICKSTARTER(4) - why is it jumping out of gear? - John Phelps, TW 25/3/2003, JP, TW 31/3/2003
GB016 GEARBOX/KICKSTARTER(7) - why is first gear slipping? - Fiacc O'Brolchain, TW 31/3/2003, Fiacc O'Brolchain 1/4/2003, Fiacc O'Brolchain, TW 6/5/2003, Fiacc O'Brolchain, TW 7/5/2003
GB017 GEARBOX/KICKSTARTER(3) - why won't first gear stay engaged? - Roly Crisp 14/4/2003, TW 17/4/2003, RC 23/4/2003
GB018 GEARBOX/KICKSTARTER(2) - what clearances for the sleeve gear bush? - Eric Cox, TW 15/5/2003
GB019 GEARBOX/KICKSTARTER(2) - why does it change into a neutral beyond second, rather than second? - Rob Hunt, TW 21/2/2006

GP001 GTP(1) - cause of uncontrolled acceleration? -  Andy Richardson 18/4/2007

IM001 IGNITION/MAGNETO(6) - why a temporary loss of spark after standing? - Will Noble 10/4/2001, TW 17/4/2001, WN, TW, WN, WN 15/6/2001
IM002 IGNITION/MAGNETO(5) - what is the procedure for setting the ignition timing? - Reg Callow, TW 1/7/2001, David Reid, TW 27/2/2003, Bill Couzens, 13/6/2006
IM003 IGNITION/MAGNETO(2) - technical data on the square ML magneto as on a KTT Mark 1? - Andrew Barnes 21/1/2003
IM004 IGNITION/MAGNETO(1) - technical data required for the K1FC magneto - George Tolfield 11/3/2003
IM005 IGNITION/MAGNETO(2) - where can I get an ATD converted to a steel gearwheel? - Hein Rollmann 19/5/2003, TW 20/5/2003
IM006 IGNITION/MAGNETO(1) - how do you set the timing of a Boyer Brandsen ignition kit in a Velocette coil ignition housing? - Bob Gussman 26/7/2003
IM007 IGNITION/MAGNETO(2) - how to use the advance/retard once on the move? - Dave Lawless 28/12/2003

IV001 INDIAN VELO(3) - information please? - Allen McLaughlin 26/5/2001, TW, Benjamin Zager 21/9/2002
IV002 INDIAN VELO(2) - more information please! - Patrick Fitzgerald, TW 16/4/2002
price compared with a Venom? - Steve Moorey, TW 21/6/2004

KC001 K-MODEL CHAINCASE(3) - oil capacity, level and leaks? - Clayton Burton 5/2/2001, Roger Franklin, TW

KP001 KTP ENGINE(1) - is it safer to run with Mag or coil ignition? Is there a modern way to improve the points set-up in the KTP head? Should we convert to single port head with mag? - Jimmy Burns, 25/11/2000
KP002 KTP ENGINE(2) - source of replacement or resurfacing of cams and rocker skids? - Bob Selfe 10/2/2001, Dai Gibbison 23/2/2001 

KR001 KSS/KTS RESTORATION(2) - anyone know the correct spec for the restoration of certain KSS items? -  Dave Hempsted, 10/11/2000, Roger & Jane Franklin 4/12/2000
KR002 KSS/KTS RESTORATION(2) - anyone know the correct spec for the restoration of certain KTS items? - Alex Berry 30/11/2000, Roger & Jane Franklin 4/12/2000
KR003 KSS/KTS RESTORATION(2) - what model had an engine designation of KCR? - Paul Challis 19/5/2001, George Tofield 15/7/2001
KR004 KSS/KTS RESTORATION(2) - spec for 1939 KSS wheel rims and horn? - Gordon Roberts 30/9/2001, GR 12/2/2002
KR005 KSS/KTS RESTORATION(3) - where is the frame number & how I could obtain a log book and registration number? Tim Perkins, TW 7/3/2002, Terry Saxby 6/11/2002.
KR006 KSS/KTS RESTORATION(2) - what are the KSS Mk I wheel and tyre specifications - Terry Saxby 5/11/2002, Andrew Barnes 23/1/2003
KR007 KSS/KTS RESTORATION(1) - how does the valve lifter cable anchor on a KSS Mk II? - Gordon Roberts 17/6/2003
KR008 KSS/KTS RESTORATION(1) - where can I get KTP silencers? - Jimmy Burns 16/10/2003

LI001 LIGHTS(3) - what are the correct sizes & types for a 1951 MAC? - Tony Ainley 21/2/2001, Dai Gibbison 2/3/2001, Roger Franklin 28/3/2001

LS001 LUBRICATION SYSTEM(3) - where can I get an oil pipe crimper? - Dougal Burns, TW 25/1/2002, Dai Gibbison 25/2/2002
LS002 LUBRICATION SYSTEM(4) - what size mesh for a rigid MAC oil strainer gauze? - Paul Greenberg, TW 28/10/2002, Paul Greenberg, TW 30/10/2002
LS003 LUBRICATION SYSTEM(2) - should my Viper's oil tank have cracked across the lower bracket - David Royston, TW 10/8/2004
LS004 LUBRICATION SYSTEM(1) - where can I get my split oil tank modified? - Steven Buckley 29/10/2004
LS005 LUBRICATION SYSTEM(1) - how to fit a plug valve in place of the ball valve assembly to stop wet sumping? - Peter Taylor 18/9/2005

ME001 METISE FRAMES(1) - any experiences? - Andrew Barnes 25/1/2003

MF001 MAC FRAME(3) - were they made with a plate cradle instead of bottom tubes? - David Porritt 17/9/2001, TW 18/9/2001, David Wilson 12/3/2002
MF002 MAC FRAME(1) - what is the part number or supplier for the 2 shouldered bolts which hold the rear stand to the mudguard on a 1952 MAC? - Jon Hurst 7/11/2002

MO001 MOV ENGINE(1) - how to make the valve covers oil tight, what spark plug, etc - Peter Foster 18/11/2001

PERFORMANCE(2) - why is mid-range and top-end poor, it even seems to go faster when I close the throttle? - TW, TW 10/6/2000
PE002 PERFORMANCE(8) - why no top-end power, almost faster in 3rd? - Peter Hope 21/2/2001, TW 26/2/2001, PH, TW, PH, TW, PH 20/6/2001, TW
PE003 PERFORMANCE(6) - why pinking and power drop off on my Viper? - Dave McNally 30/4/2001, TW, DMcN, TW, DMcN, TW

PT001 PETROL TANK/TAPS(2) - what size is the thread in the tank of a Venom? - Kim Hopkins 8/8/2001, TW 11/8/2001
PT002 PETROL TANK/TAPS(2) - suppliers of alloy tanks? - John Holland 2/12/2002, Eric Cox 11/1/2003

RB001 REAR BRAKE(2) - availability of shoes? TW 20/2/2001

RG001 RESTORATION/GENERAL(1) - advice on getting my 1958 MAC back on the road - Colin Bonfield 5/3/2001
RG002 RESTORATION GENERAL(2) - who can re-chrome paint and gold line my 1961 Venom petrol tank? - Ted Lawson 16/8/2001, Chris Hadfield 9/12/2001
RG003 RESTORATION/GENERAL(2) - how to apply transfers? - David McNally 17/7/2002, TW 19/7/2002
RG004 RESTORATION/GENERAL(2) - what finish handlebars on a 1954 MAC? - Graham Baldwin 1/9/2002, TW 2/9/2002
RG005 RESTORATION/GENERAL(2) - what bolt sizes, gearbox bearings and oil seals, handlebars? - Vince Buckley, TW 30/10/2002
RG006 RESTORATION/GENERAL(1) - information about a "Dodkin Viper Special" requested - Chris and Kim Johnson, 6/11/2002
RG007 RESTORATION/GENERAL(2) - what finish petrol tank on a 1958 Venom - Ray Brown 9/11/2002
RG008 RESTORATION/GENERAL(2) - which model Velocette is best for me? - Ian Lambert, TW 18/11/2002
RG009 RESTORATION/GENERAL(1) - what is the colour code of the blue used for the Viper & Venom Special models? - John McAloran 9/12/2002
RG010 RESTORATION/GENERAL(4) - how to fit handlebar grips? - Roly Crisp, TW 21/2/2003, Roly Crisp 4/3/2003, Ian Lacey, 7/8/2003
RG011 RESTORATION/GENERAL(2) - what is the RED BOOK, where can I get one? - John Phelps, TW 31/3/2003
RG012 RESTORATION/GENERAL(2) - advice on re-painting? - David Royston, TW 15/5/2003
RG013 RESTORATION/GENERAL(2) - where can I get an M206 Oil Pump Drive Worm? - Ben Beeckman, 20/10/2003, Sten von Wachenfeldt, 22/10/2003
RG014 RESTORATION/GENERAL(8) - when did the MAC use a barrel silencer? - Mark Hodgkinson 20/11/2003, TW 21/11/2003, MH, TW 22/11/2003, MH, TW 26/11/2003, MH, TW 1/12/2003
RG015 RESTORATION/GENERAL(3) - how can you remove baked on 'R'? - Dave Read 4/12/2003, Dave Read 11/4/2004, Bruce Pederick 23/4/2004
RG016 RESTORATION/GENERAL(2) - how to repaint a petrol tank? - John Holland, TW 12/3/2004 
RG017 RESTORATION/GENERAL(2) - what transfers for a 1959 Venom? - Craig Farrington, TW 1/6/2004.
RG018 RESTORATION/GENERAL(1) - availability of GTP knee grips? - Joe Hebblethwaite 9/6/2004
- how to seal a leaking petrol tank seam? - Colin Saunders, TW 9/8/2004, CS 6/10/2004
RG020 RESTORATION/GENERAL(1) - availability of correct steel rear mudguard for 1960 MSS? - Alan Parker 17/3/2005 
RG021 RESTORATION/GENERAL(2) - availability of steel mudguards for a MAC? - Christopher Oldfield 7/10/2005, John McAloran 19/12/2005
RG022 RESTORATION/GENERAL(1) - source of stainless mudguards? - Dave Smart 17/4/2006
RG023 RESTORATION/GENERAL(1) - are Venom gearbox technical drawings available? - Mark Rayner, 31/7/2006
RG024 RESTORATION/GENERAL(1) - correct transfers for a KSS? - Ian Bell, 21/9/2006
RG025 RESTORATION/GENERAL(1) - what are the rim offset and spoke dimensions on a KTP? - Ian Lacey, 22/9/2005
RG026 RESTORATION/GENERAL(1) - will an early silencer and timing cover fit a '54 MAC?- Ashley Jenkins 8/10/2007

SC001 SEATS/COVERS(5) - how is the cover attached/where can I get a replacement? - John Shipman, TW, JS 26/5/2002, JS, TW 2/6/2002

SP001 SPEEDOMETER(2) - can I reset the trip counter?David Royston 29/10/2000, TW 29/10/2000
- where can I find rubber seals for the Smiths speedo and Miller ammeter? - Bob Hodgkins, TW 4/1/2001,Dai Gibbison 23/2/2001
why is my speedo drive gearbox locking the wheel? - Ron Sabey, TW 28/4/2002, RS 2/5/2002 
which drive unit? - Craig Farrington, 2/8/2002, TW 6/8/2002
which type for a 1936 MAC? - John Holland 31/1/2005

- how much oil, and of what grade, in a Girling rear suspension unit? - George Tofield 22/8/2000, Chris Hill 25/8/2000, Dai Gibbison 26/8/2000, Martin Russell 5/12/2000
how or where can I get a pair of Woodhead Monroe units renovated? - Willie Williams 13/12/2002

- it starts OK hot, but why not cold? - David Royston, TW 2/10/2002
SV002 VM/STARTING GENERAL(3) - it starts OK cold, but why not hot? - David Price, TW 27/9/2002, Andrew Barnes 29/1/2003
SV003 VM/STARTING GENERAL(3) - what is the knack? - Dorian Burrows 18/6/2000; TW 21/6/2000, Andrew Barnes 23/1/2003
SV004 VM/STARTING GENERAL(2) - how do I use the decompressor; where can I get an instruction book? - Gareth Palfrey-Evans, TW 9/8/2000
SV005 VM/STARTING GENERAL(3) - plugs made inoperative by modern petrol? - John Turner, TW 17/11/2001, JT 24/11/2001
SV006 VM/STARTING GENERAL(4) - why does it stop after a few miles then won't restart until cold? - Dorian Burrows, TW 24/5/2002, Dorian Burrows, TW 25/5/2002
SV007 VM/STARTING GENERAL(1) - any information about an electric starter conversion? - John Turner 19/3/2003
SV008 VM/STARTING GENERAL(1) - why is starting inconsistent? - Angus Cameron, 8/4/2003
SV009 VM/STARTING GENERAL(2) - poor hot starting - can my magneto be tested? - David Kendall, TW 21/7/2003
SV010 VM/STARTING GENERAL(2) - poor cold starting and banging in exhaust - Dave Lawless, TW 3/10/2004
SV011 VM/STARTING GENERAL(2) - why kicking back? - John Terry, TW 15/11/2004
SV012 VM/STARTING GENERAL(1) - effect of K1F cam ring variance; ATD wear; and Concentric float height - Bill Couzens 1/8/2006

TA001 TACHOMETER(9) - how to stop oil travelling up the drive cable? - Gilles Glachant, TW 25/8/2000, GG 3/9/2000, GG 12/9/2000, TW 16/9/2000, Tony Ainley, TW 23/9/2000, GC 8/11/2001, John Richardson, TW 25/10/2004
TA002 TACHOMETER(2) - fitting requirements? - John Holland, TW 12/2/2002
TA003 TACHOMETER(1) - does this model suit a Venom? - M Walsh 17/3/2008

TH001 THRUXTON(5) - is it a wise acquisition? - Peter Houchin 3/6/2001, TW 4/6/2001, TW, M Neuman 28/10/2001, Gilles Glachant 10/12/2002
TH002 THRUXTON(5) - where can I get a fairing? - Jouni Rinne, Finland 29/8/2001, Tony Ainley 15/10/2001, M Neuman 28/10/2001, Tony Ainley 29/10/2001, Alan Lawrence 23/4/2002
TH003 THRUXTON(1) - is it good to fit an inch and and a half carb to my 571cc Thruxton - Stoo, 13/1/2002
TH004 THRUXTON(2) - which spark plug? - Daniel Tycer, TW 5/2/2002
TH005 THRUXTON(1) - what alternative carbs and settings? - Frans 7/5/2002
TH006 THRUXTON(1) - advice on fitting Concentric carbs please? - George Tofield 17/2/2003
TH007 THRUXTON(1) - comparisons with the DBD34 requested - John Young 26/3/2003
TH008 THRUXTON(2) - how to run in/what oil - Melvyn Ward, TW 19/4/2004
TH009 THRUXTON(1) - did Stevens build a batch of Thruxtons in 1972? - Tony Morley 11/12/2004
TH010 THRUXTON(3) - what is the effect of a 23T gearbox sprocket? - Mike Grinstead 12/12/2004, TW, MG 13/12/2004
TH011 THRUXTON(9) - how is the full fairing attached? - Roger Hinton 20/3/2006, JT, RH 13/5/2006, JT, RH 14/5/2006, RH, JT, RH 1/6/2006, RH 5/6/2006
TH012 THRUXTON(1) - what is the specification of the silver colour used on a Thruxton? - Robert Watson 22/11/2006

TY001 TYRES(6) - suitable tyres for a Thruxton? - John Allen 26/4/2001, TW, Dai Gibbison 2/5/2001, Ian Medd 16/5/2001, JA 16/12/2001, IM 1/4/2004
TY002 TYRES(1) - advantages in using TT100 360Hx19 or 410Hx19 on front and rear? - Ted Lawson 25/11/2003
TY003 TYRES(3) - best rear tyre for a rigid MAC? - Andrew Baxter, TW 29/2/2004, AB 16/4/2004

VA001 VALIANT(2) - how can I replace the broken screen on my Veeline fairing? - Bill Redrobe 1/4/2001, Bob Dixon 25/1/2002
VA002 VALIANT(3) - how do you sort out the carbs to restore performance - Neville Perkins, TW 24/4/2002, Neville Perkins 26/4/2002

WB001 WHEELS/BRAKES(3) - colour of front brake drum on Venom? - David Ashall, TW 13/7/2000, Dai Gibbison 23/2/2001
WB002 WHEELS/BRAKES(2) - what finish was the wheel rim on a 1950 MAC? - Chris Hill 12/8/2000, CH 27/9/2000
WB003 WHEELS/BRAKES(4) - is it practical to rebuild my own? - Frank Dunning, TW 1/3/2002, FD, TW
WB004 WHEELS/BRAKES(2) - what size are the three holding nuts on a Venom q/d rear wheel? - Reg Callow, TW 30/6/2002
WB005 WHEELS/BRAKES(1) - alternative rear hub/brake for a Mk 1 KSS? - Neale Smith 12/8/2002
WB006 WHEELS/BRAKES(2) - can a brake drum be re-toothed? - Rolf Minkenberg 9/11/2002, Tony Ainley 29/11/2002
WB007 WHEELS/BRAKES(2) - availability of twin leading shoe front brake? - Trevor Bowdler 8/1/2003, Roly Crisp 9/1/2003