updated 2020-11
Table of Contents
1. Tomos USA Parts Catalogs
2. Tomos Parts Directory
1. Tomos USA Parts Catalogs
The parts list and information presented below comes mostly from these 44 parts catalogs.
9 parts catalogs for 1974-1991 models with A3 engines
12 parts catalogs for 1992-2006 models with A35 engines
11 parts catalogs for 2004-2013 wide-tire models with A55 engines
12 parts catalogs for 2007-2013 thin-tire models with A55 engines
Tomos Parts Directory
Welcome. Many Tomos parts are in the Parts By Type sections. Below is a summary list of Tomos parts with links to the Parts by Type sections. The parts are described by sizes, specs, and type rather than part numbers and brand names. This system allows for when the same part is used on several different brands. For example, “Tomos A3 rings” are also “Sachs rings” and “Puch rings”. Instead, here we call those rings “38.0 x 2.0 FG”. That is more technical, but more universal and correct.
Manuals…………..see Accessories/Manuals
Stickers…………..see Accessories/Stickers
Tools………………see Accessories/Tools
1974-1985 Tomos A3 have a Ducati or ZEM flywheel that takes a 26×1.5 puller tool
1985-1986 Tomos late A3 have aCEV 6951 flywheel that takes a 26×1.5 puller tool
1987-1988 late A3 have a CEV 6418 or 6436 flywheel that takes a 19×1.0 puller tool
1989-1993 Tomos A3 and A35 have a Iskra flywheel that takes a 26×1.5 puller tool
1993-1995 (some) Tomos A35 have a Iskra flywheel that takes a 26×1.5 puller tool
1993-1995 (some) Tomos A35 have a IDM flywheel that takes a 19×1.0 puller tool
1996-2008 A35 and A55 have a Iskra-AET flywheel that takes a 26×1.5 puller tool
2008-2013 Tomos A55 have a Kinetic-India flywheel that takes a 26×1.5 puller tool
Mirrors…………..see Accessories/Mirrors
1974-1991 Tomos A3/A35 all models have clamp-on mirrors
1992-2006 Tomos A35 (except Revival) have 8mm bolt-on mirrors
2007-2008 Tomos A55 (except Revival) have8mm bolt-on mirrors
2008-2013 Tomos A55 have 8mm screw-in mirrors
2008-2013 all left side mirror holes have right hand thread
2008-2013 (most) right side mirror holes have right hand thread
2008-2013 (some) right side mirror holes have left hand thread (special)
Gas Caps…………see Parts by Type/Frame/Gas Caps
1974-2001 Tomos A3/A35 step-thru models (not LX top tank) have a 30mm quarter turn
2001-2010 Tomos A35/A55 Revival have a 32mm push-in type gas cap
2002-2013 Tomos A35/A55 Sprint, Targa, ST have a 30mm quarter turn gas cap
2005-2010 Tomos A55 Streetmate, Arrow, Arrow-R have a 32mm push-in gas cap
2011-2013 Tomos A55 Revival, Streetmate have a 30mm quarter turn gas cap
Gas Valves……….see Parts by Type/Frame/Gas Valves
1974-1993 Tomos A3/A35 step-thru models (not LX top tank) have a 12×1 spigot left
1987-1993 Tomos A3/A35 Bullet TT and TTLX (top tank) have a 10×1 male gas valve
1994-2013 Tomos A35 Targa LX and LX (top tank) have a 12×1 spigot right round knob
1994-2006 Tomos A35 Targa, “Tomos”, ST have a12×1 spigot left extended knob petcock
2007-2013 Tomos A55 ST, Sprint, Revival, Streetmate, Arrow have a 12×1 spigot right
Handlebars…….see Parts by Type/Frame/Bars and Grips
Handlebar Clamps…….
1974-1985 Tomos had 217104 silver or 222116 black, 32mm c-c bolt spacing
1986-2002 Tomos had a different 222116 black with 30mm c-c bolt spacing
2003-2005 Tomos had a single plate type clamp with 4-bolts
2006-2017 Tomos had 232909 or 243145 silver flat-top, 30mm c-c bolt spacing
Seats……………..see Parts by Type/Frame/Seats (not finished)
1974-1978 Tomos A3 Bullet (some) have solo seats with a rectangular seat pole, rect. frame mount
1977-1985 Tomos A3 Bullet (most) havelong bench seats, uses the same rectangular seat pole mount
1979-1985 Tomos A3 Silver Bullet has a short bench seat, that lifts up, uses the same frame mount
Speedometer……see Parts by Type/Frame/Speedometers
1974-1979 Tomos (all models) have a dark blue face w/white letters, CEV, 11-0.75 thread, 2mm wire
1980-2002 Tomos (all models) have a black face, white letters, CEV type, 11-0.75 thread, 2mm wire
2003-2013 Tomos (all models) have a white face, black letters, VDO type, 10-1.00 thread, 2mm wire
Steering………….see Parts by Type/Frame/Steering
1974-2013 Tomos (all models) have 26-1.0 threads, 42 – 5mm loose balls, and 32.5mm cups
1974-2006 Tomos A35 (non-EBR types) have a 26.0mm fork crown race and no spring strap
2001-2013 Tomos A55 (EBR type forks) have a 27.4mm fork crown race and a 1.0mm spring strap
Reflectors……….see Parts by Type/Frame/Reflectors (not done yet)
Shocks……………see Parts by Type/Frame/Shocks
1974-2013 Tomos (2.25-16 rear tire models, except Colibri) have 11″ 280mm rear shocks, 10mm eyelets
2001-2013 Tomos (Revival, Streetmate w/ 3.25-16 rear tire) have 12 3/4″ 325mm shocks, 10mm eyelets
Covers/Panels… see Parts by Type/Frame/Covers (not finished)
1974-1995 Tomos A3/A35 havemetal side (engine) covers, thinner for center-mounted carburetor
1996-2006 Tomos A35 all haveplastic side (engine) covers, wider for side-mounted carburetor
Cover Parts……..see Parts by Type/Frame/Covers (not finished)
1974-1993 Tomos A3/A35 have on side panel tops, 4 – #8 x 5/8″ sheet metal screws, 4 clip-on nuts, 4 washers
1974-1993 Tomos A3/A35 have on side panel sides, 2 – M6-1.0×15 machine screws, 2 – 6mm washers
Fenders………….see Parts by Type/Frame/Fenders (not done yet)
Forks……………..see Parts by Type/Frame/Forks (not finished)
1974-1986 Tomos A3 have a Tomos-made single piece welded upper fork, lower inner steel sliding tubes
1987-2006 Tomos A3/A35 have a Tomos-made fork, 28mm bolt-on tubes, lower outer steel sliding tubes
2002-2013 Tomos A35/A55 have a EBR-type fork, 30mm clamp-on tubes, lower outer aluminum sliders
Racks……………..see Parts by Type/Frame/Racks (not done yet)
Keys……………….
Tomos Keys for battery models
Chains……………
415H x 90 links: 26 x 22 sprockets, ’74-07 thin tire models
415H x 93 links 26 x 28 sprockets, ’08-18 thin tire models
415H x 96 links: 26 x 24 sprockets, ’05-08 Arrow
415H x 104 links: 26 x 31 sprockets, ’02-13 fat tire models
Pistons……………see Parts by Type/Engine/Pistons
1974-1991 Tomos A3 have a 10mm pin, 38mm bore, solid intake side for piston port
1992-1993 Tomos A35 have a 12mm pin, 38mm bore, intake windows for reed valve
1974-1991 Tomos A3 have a 12mm pin, 38mm bore, solid intake side for piston port
Rings………………see Parts by Type/Engine/Rings
1974-1991 Tomos A3 have 38.0 x 2.0 FG upper and lower piston rings
1992-2013 Tomos A35/A55 have 38.0 x 1.5 FG upper and lower rings
Bearings………….see Parts by Type/Engine/Bearings
1974-1985 Tomos (early) A3 all have L17 (17x40x10) left and right crank bearings, 3-piece type
1986-2013 Tomos A3/A35/A55 have 6302 (17x40x12) left and right crank bearings, 1-piece type
Seals……………….see Parts by Type/Engine/Seals
1974-2013 Tomos A3/A35/A55 have 17 x 35 x 8 mm left and right crankshaft seals
Cylinder Studs….see Parts by Type/Engine/Engine Hardware
1974-2006 Tomos A3/A35 have M7-1.0 x 115 mm straight cylinder studs, head nuts M7-1.0
2002-2013 Tomos A55 all haveM6-1.0 / M7-1.0 x 115 stepped cyl. studs, head nuts M6-1.0
Piston Parts……..see Parts by Type/Engine/Engine Hardware
1974-1991 Tomos A3 models have 10mm piston pin and clips, brass bushing
1992-2013 Tomos A35/A55 have12mm piston pin and clips, needle bearing
Crank Nuts……….see Parts by Type/Engine/Engine Hardware
1974-2013 Tomos A3/A35/A55 have right crank (clutch) nuts M10-1.0 right hand thread
1974-2013 Tomos A3/A35/A55 haveleft crank (flywheel) nuts M10-1.0 right hand thread
Woodruff Keys…..see Parts by Type/Engine/Engine Hardware
1974-2013 Tomos A3/A35/A55 have a 3mm round x 5mm long pin for the flywheel key
Circlips……………see Parts by Type/Engine/Engine Hardware
Gaskets…………… not done yet
1974-2006 Tomos A3/A35 have the same cylinder base gasket
2002-2013 Tomos A55 have a different cylinder base gasket, wider transfer ports
1974-2006 Tomos A3/A35 have no head gasket
2002-2013 Tomos A55 all have a thin copper gasket/spacer
A3 Carburetor…..see Parts by Type/Carburetor/Encarwi
1974-1983 Tomos A3 have a center mounted Encarwi A83 carburetor, Ø12, 46 jet
1980-1983 Tomos A3 have a center mounted Encarwi 88A85/102 carburetor, Ø12, ?? jet
1984-1985 Tomos A3 have a center mounted Encarwi 88A85/103 carburetor, Ø12, ?? jet
1986-1991 Tomos A3 have a center mounted Dellorto SHA 14/12P carburetor, Ø12, 51 jet
A35 Carburetor…see Parts by Type/Carburetor/Dellorto
1992-1995 Tomos A35 have a center mounted Dellorto SHA 14/12P carburetor, Ø12, 51 jet
1996-2006 Tomos A35 have a R side mounted Dellorto SHA 14/12P carburetor, Ø12, 53 jet
2004-2013 Tomos A55 have a R side mounted Dellorto PHVA 14 carb, 16×12 “oval”, 55 jet
Exhaust
1974-2006 Tomos A3 and A35 have an exhaust baffle that can be modified to improve performance. When the power is low the bike does not want to shift into second gear. There are other causes, but the most common one is exhaust flow restriction. Cut the baffle so that only the outlet tube with end cap remains. Widen the screw hole and use a machine screw and nylock nut, instead of the original sheet metal screw. Without that the baffle works loose and falls off after a while.
