Carburettor Conversions
Motocarb have over 2,500 jetting specifications on file.
We can jet a new Mikuni carburettor for most applications.
Most of our jetting specifications have been proven on customer bikes over the years.
Mikuni conversion carbs and conversion kits are used to replace worn OEM carburettors on older bikes.
Mikuni carburettors are popular replacements for Amal, Dellorto, Bing, TK.
Our most popular conversion carburettors and kits are
Single VM34 Norton Commando (full kit) £372.00 inc
VM26 / VM28 most twin shock trials bikes 250cc/350cc Bultaco, Montesa, Ossa, Yamaha TY etc
Enduro & motocross 250cc - 500cc 2 stroke and 4 stroke. YZ, RM, TM, KX, Pursang, Cappra
Velocette most models 350cc - 500cc
Triumph most models T20 - T160
Norton most models 350cc - 850cc
Vincent most models 500cc, 600cc, 1000cc
Armstrong MT500 VM30, VM32, VM34
Matchless G50 VM38, VM44
Gold Star 350cc - 500cc VM34, VM36, VM38
Ariel Arrow, Sports Arrow, Leader VM26, VM28
BSA singles, twins and triples
Yamaha air cooled twins 250cc / 350cc YDS7, YR5, RD250, RD350
Honda 350 K4 race 2 x VM32 or 2 x VM34 I also have the correct flanged adapters to mount these carburettors
Call with your enquiry if your bike isn't listed, we can normally supply a suitable carburettor.
We don't offer carburettors for BMW's or any version of pit bike engines.
Norton Commando 750cc & 850cc
Mikuni VM34 single carburettor conversion £372.00 inc
The best selling conversion kit,
No one offers a more complete kit. Our Norton Commando single conversion kit features flow bench derived M.A.P. intake manifold, manifold adapter, pre-jetted carb, American made air filter, fuel pipe kit, fittings, clamps, throttle cable, fine tuning jets, and easy to follow instructions.
We can jet a new Mikuni carburettor for most applications.
Most of our jetting specifications have been proven on customer bikes over the years.
Mikuni conversion carbs and conversion kits are used to replace worn OEM carburettors on older bikes.
Mikuni carburettors are popular replacements for Amal, Dellorto, Bing, TK.
Our most popular conversion carburettors and kits are
Single VM34 Norton Commando (full kit) £372.00 inc
VM26 / VM28 most twin shock trials bikes 250cc/350cc Bultaco, Montesa, Ossa, Yamaha TY etc
Enduro & motocross 250cc - 500cc 2 stroke and 4 stroke. YZ, RM, TM, KX, Pursang, Cappra
Velocette most models 350cc - 500cc
Triumph most models T20 - T160
Norton most models 350cc - 850cc
Vincent most models 500cc, 600cc, 1000cc
Armstrong MT500 VM30, VM32, VM34
Matchless G50 VM38, VM44
Gold Star 350cc - 500cc VM34, VM36, VM38
Ariel Arrow, Sports Arrow, Leader VM26, VM28
BSA singles, twins and triples
Yamaha air cooled twins 250cc / 350cc YDS7, YR5, RD250, RD350
Honda 350 K4 race 2 x VM32 or 2 x VM34 I also have the correct flanged adapters to mount these carburettors
Call with your enquiry if your bike isn't listed, we can normally supply a suitable carburettor.
We don't offer carburettors for BMW's or any version of pit bike engines.
Norton Commando 750cc & 850cc
Mikuni VM34 single carburettor conversion £372.00 inc
The best selling conversion kit,
No one offers a more complete kit. Our Norton Commando single conversion kit features flow bench derived M.A.P. intake manifold, manifold adapter, pre-jetted carb, American made air filter, fuel pipe kit, fittings, clamps, throttle cable, fine tuning jets, and easy to follow instructions.
- Everything needed for installation
- M.A.P. flow bench derived intake manifold
- M.A.P. ultra quality cable
- Pre-Jetted Carb to help eliminate the initial tuning
- Made in the USA air filter - DuPont material
Mikuni VM26 / VM28 Yamaha set
Motocarb supply this set to fit the early Yamaha road twins from the YDS7 / YR5 to the RD250 / RD350
The set is available in 26mm and 28mm versions.
It features factory stock jetting or your choice fitted on request.
The carbs are supplied with left and right idle screws and the factory OEM type linked choke with the correct size starter jet.
Ready to fit.
There is no availability of right side throttle slides at the moment
so this conversion is not available until I can source them again.
I can still supply them as 2 x left idle carbs for race bikes.
This carburettor set is also suitable for the GT250 Suzuki and other similar 2 stroke twins with a 35mm spigot type fitting.
Motocarb supply this set to fit the early Yamaha road twins from the YDS7 / YR5 to the RD250 / RD350
The set is available in 26mm and 28mm versions.
It features factory stock jetting or your choice fitted on request.
The carbs are supplied with left and right idle screws and the factory OEM type linked choke with the correct size starter jet.
Ready to fit.
There is no availability of right side throttle slides at the moment
so this conversion is not available until I can source them again.
I can still supply them as 2 x left idle carbs for race bikes.
This carburettor set is also suitable for the GT250 Suzuki and other similar 2 stroke twins with a 35mm spigot type fitting.
- Mikuni VM38 (38mm) BSA Gold Star 500
BSA Gold Star 500cc Conversion Kit. £363.00
The kit includes
pre-jetted Mikuni VM38 round slide carburettor
65mm flange adapter & stainless clip
billet alloy velocity stack
spare tuning jets
Low fuel inlet version also available (click here)
You may also need
Venhill throttle cable kit £14.00
90 degree cable adjuster for carb top £16.00
fuel pipe kit, including brass fuel T, fuel pipe, clips, 1/4" to 5/16" converter £22.00
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Vincent Twin
2 x Mikuni VM30 fitted with our very nice billet turned polished alloy velocity stacks
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