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Old March 20th, 2016, 06:48 AM   #8
Yamahawk
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Name: Charlie
Location: Toledo
Join Date: Nov 2015

Motorcycle(s): 75 RD350 race bike, 82 XZ550RJ Vision, 81 XV920RH, 89 VTR250 Interceptor race bike, 06 Concours, 86 EX250E1

Posts: 153
Quote:
Originally Posted by Mohawk View Post
If you have these off the bike, can you check something for me please ?

I just stripped checked cleaned my pre-gen ZZR250 carbs, the book says these are 30mm carbs & the outlet is 30mm. But looking at the venturi area, the bore is stepped, so only 28mm at the venturi !

Can you look in the outlet of the 32mm carbs with the butterflies open & see if there is a step on the bore to the venturi area ?

Thanks
Ok, I just measured my carbs, they are 32.1mm ID and there is no step, to speak of inside past the butterflies. There is a hairline where the slide area is, on the butterfly side, but I could hardly feel it with a fingernail. Hope this helps!
Charlie
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