email [email protected]

Due to the telephone line being used increasingly as a free technical helpline, in an attempt to retain my sanity, I have unfortunately decided to cease the telephone service and go email only.
Parts supply is not affected and most orders still go out same day. Emails are normally responded to within 1 hour.
It really helps if you can let me know on the initial enquiry, year, make and model of bike and any Mikuni part numbers you can get from the website pages.
Please email me on [email protected]
I accept payment by PayPal or bank transfer
Motocarb
Specialise in new genuine Mikuni motorcycle carburettors and spare parts.
We also supply Mikuni conversion carburettors, manifolds and adapters to convert your bike to Mikuni carburation. Norton Commando, Atlas, Triumph Bonneville, Norton singles, Gold Star, G50, Bultaco Sherpa, Honda CB twins, Montesa, Yamaha TY250, Ariel Arrow & Leader,
We have over 2,500 carburettor specifications on file for Mikuni conversions.
We stock new
Mikuni VM carbs in sizes from 26mm to 44mm
Mikuni TM carbs in sizes from 24mm to 38mm
most carbs we stock can be jetted to suit your bike, we stock a full range of calibrated tuning parts, main jets, pilot and air jets, needles, needle jets, throttle valves etc.
We have a large range of 2 bolt flanged inlet adapters and straight rubber connectors to mount your Mikuni.
We can rebuild and repair your existing Mikuni carburettors. We have a full engineering machine shop, ultrasonic cleaning and bead blasting.
Common workshop jobs include machining Suzuki flange mount carbs (T250, T350) removing damaged pilot jets and air screws. We also machine warped float bowl gasket faces.
we supply new TZ350 VM38 power jet carburettors which we build here to a specification almost identical to the 3G3 OEM version.
We can modify your new Mikuni carburettor to fit in place of most other makes of carburettor including Bing, Amal, Keihin and Dellorto.
We stock UFO throttle valve inserts for Mikuni VM carburettors. We have fitted UFO inserts to several AJR 350 race bikes (VM44) as well as many other models.
Read more on the UFO page.
Despite strong demand for the reintroduction of many discontinued carb parts to support the classic bike movement, Mikuni are going the other way and ceasing manufacture and supply of many items every month. They don't seem to have a care for the customers who buy their product and are disconnected from the reality of the classic bike business. That said, as more carburettor parts become obsolete and no longer available, we are having small batches of quality replacement parts manufactured where we see there is a demand.
Look on the New Replacement parts page to see what the latest items are. Many OEM parts can be supplied by slight modification to genuine Mikuni parts which are still available.
Amazon sourced Chinese carburettors
If you have recently bought a cheap Chinese carburettor on eBay or Amazon for an ATV Arctic Cat etc which is branded "Motorcarb" and doesn't work, please don't contact us about it.
We have no connection with this enterprise, their product or after sales.
We have no information about these products and cannot help you with advice, spares, refunds or sympathy.
Carburettor Service Kits
Understandably, I am regularly asked to supply "service kits" for Mikuni OEM carburettors,
Mikuni don't make or sell service kits for any OEM carburettors.
Genuine Mikuni spares for any OEM carburettor are only sold via the motorcycle manufacturers spares department.
If you need any service parts for any carburettor which was fitted to a bike when the bike was new, you need to get them from the bike dealer parts dept.
Genuine Mikuni spares are sold as separate items not kits.
I only stock genuine Mikuni spares.
I can't supply non genuine pattern parts or kits.
Service kits are all pattern non genuine parts.
The only exception is some older Yamaha carbs, YDS7, YR5, Suzuki T500 and a few others, I have some new genuine Mikuni spares available, so it's worth enquiring.
I also have main jets, pilot jets, gaskets, float valves for some older models.
I don't have any spares for CV type carbs (BS series) as Mikuni don't sell them.
I don't have diaphragms or tap kits.
Please enquire.
[email protected]
STOP PRESS
Motocarb are now the official world distributors for the following carburettor manufacturers.
Miniki, Minuki, Mankini, Makini, Minkini, Mikooni, Mikuno, Mukimi, Sushimi, Mukuki, Mamuki, Mikuki, Minuni, Bikini, Mikano, any other misspelling you can think of.
We have recently introduced a "low fuel inlet" modification for all VM36 and VM38 carburettors.
This is really useful in applications where the fuel tank is very low over the carburettor such as Velocette Thruxton / Clubmans type tanks and the BSA Goldstar, or on pumped systems such as racing karts using a low fuel tank.
The modification allows a much simpler fuel pipe run and ensures the full contents of the fuel tank can be used.
Parts supply is not affected and most orders still go out same day. Emails are normally responded to within 1 hour.
It really helps if you can let me know on the initial enquiry, year, make and model of bike and any Mikuni part numbers you can get from the website pages.
Please email me on [email protected]
I accept payment by PayPal or bank transfer
Motocarb
Specialise in new genuine Mikuni motorcycle carburettors and spare parts.
We also supply Mikuni conversion carburettors, manifolds and adapters to convert your bike to Mikuni carburation. Norton Commando, Atlas, Triumph Bonneville, Norton singles, Gold Star, G50, Bultaco Sherpa, Honda CB twins, Montesa, Yamaha TY250, Ariel Arrow & Leader,
We have over 2,500 carburettor specifications on file for Mikuni conversions.
We stock new
Mikuni VM carbs in sizes from 26mm to 44mm
Mikuni TM carbs in sizes from 24mm to 38mm
most carbs we stock can be jetted to suit your bike, we stock a full range of calibrated tuning parts, main jets, pilot and air jets, needles, needle jets, throttle valves etc.
We have a large range of 2 bolt flanged inlet adapters and straight rubber connectors to mount your Mikuni.
We can rebuild and repair your existing Mikuni carburettors. We have a full engineering machine shop, ultrasonic cleaning and bead blasting.
Common workshop jobs include machining Suzuki flange mount carbs (T250, T350) removing damaged pilot jets and air screws. We also machine warped float bowl gasket faces.
we supply new TZ350 VM38 power jet carburettors which we build here to a specification almost identical to the 3G3 OEM version.
We can modify your new Mikuni carburettor to fit in place of most other makes of carburettor including Bing, Amal, Keihin and Dellorto.
We stock UFO throttle valve inserts for Mikuni VM carburettors. We have fitted UFO inserts to several AJR 350 race bikes (VM44) as well as many other models.
Read more on the UFO page.
Despite strong demand for the reintroduction of many discontinued carb parts to support the classic bike movement, Mikuni are going the other way and ceasing manufacture and supply of many items every month. They don't seem to have a care for the customers who buy their product and are disconnected from the reality of the classic bike business. That said, as more carburettor parts become obsolete and no longer available, we are having small batches of quality replacement parts manufactured where we see there is a demand.
Look on the New Replacement parts page to see what the latest items are. Many OEM parts can be supplied by slight modification to genuine Mikuni parts which are still available.
Amazon sourced Chinese carburettors
If you have recently bought a cheap Chinese carburettor on eBay or Amazon for an ATV Arctic Cat etc which is branded "Motorcarb" and doesn't work, please don't contact us about it.
We have no connection with this enterprise, their product or after sales.
We have no information about these products and cannot help you with advice, spares, refunds or sympathy.
Carburettor Service Kits
Understandably, I am regularly asked to supply "service kits" for Mikuni OEM carburettors,
Mikuni don't make or sell service kits for any OEM carburettors.
Genuine Mikuni spares for any OEM carburettor are only sold via the motorcycle manufacturers spares department.
If you need any service parts for any carburettor which was fitted to a bike when the bike was new, you need to get them from the bike dealer parts dept.
Genuine Mikuni spares are sold as separate items not kits.
I only stock genuine Mikuni spares.
I can't supply non genuine pattern parts or kits.
Service kits are all pattern non genuine parts.
The only exception is some older Yamaha carbs, YDS7, YR5, Suzuki T500 and a few others, I have some new genuine Mikuni spares available, so it's worth enquiring.
I also have main jets, pilot jets, gaskets, float valves for some older models.
I don't have any spares for CV type carbs (BS series) as Mikuni don't sell them.
I don't have diaphragms or tap kits.
Please enquire.
[email protected]
STOP PRESS
Motocarb are now the official world distributors for the following carburettor manufacturers.
Miniki, Minuki, Mankini, Makini, Minkini, Mikooni, Mikuno, Mukimi, Sushimi, Mukuki, Mamuki, Mikuki, Minuni, Bikini, Mikano, any other misspelling you can think of.
We have recently introduced a "low fuel inlet" modification for all VM36 and VM38 carburettors.
This is really useful in applications where the fuel tank is very low over the carburettor such as Velocette Thruxton / Clubmans type tanks and the BSA Goldstar, or on pumped systems such as racing karts using a low fuel tank.
The modification allows a much simpler fuel pipe run and ensures the full contents of the fuel tank can be used.