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What carb for ty 250


vaughan
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Frankie your 1978 Ty250 when standard had a 26mm venturi carby made by Mikuni for Yamaha. It is quite different to an off-the-shelf Mikuni VM.

If you want to replace the carby, there are many you can choose from including a modern flat slide type. The cheapest option would be to get a standard TY250 carby second hand. Parts are still available for them. Another would be to get a new 26mm VM Mikuni. B&J Racing sells them prejetted to suit the TY250 twinshock.

Edited by feetupfun
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Your best bet, and cheapest is a VM 26, standard settings will be about 150 main and 35 pilot, and a 2 slide. If you fit new reeds you may need to alter the the jetting by one size, likewise you may need to alter them if you are using a podded cleaner. Also if you are still on a posilube system the new VM 26 does not have an oil inlet from the pump.

tony

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