T250 Rebuild

Getting your blazingly fast Suzuki powerplant to perform even better!

Moderators: oldjapanesebikes, H2RICK, diamondj, Suzsmokeyallan

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Tripleking
To the on ramp
Posts: 205
Joined: Sat May 11, 2013 7:43 am
Country: USA
Suzuki 2-Strokes: GT380, T250, GSX750F

T250 Rebuild

Post by Tripleking »

As part of my T250 project, I am forced to rebuild my engine (which is a 74 GT250). Since the engine will be bored out 1mm (effectively making it a 260), the exhaust ports will be cleaned up and I have to run pod filters due to a missing air box, I am planning on installing Mikuni VM26-8074 carbs. The problem is, I need base line jetting so I don't blow up the engine while I am tuning. I am looking for suggestions.

Also, although the engine is a 74 GT250, the timing plate, etc., is from a T250. Will I be able to time the engine properly with T250 timing gear on a GT250 engine?
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H2RICK
AMA Superbike
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Suzuki 2-Strokes: GT550A, GSF1200SK6 currently
Location: Cowtown aka Calgary, Canada

Re: T250 Rebuild

Post by H2RICK »

Will I be able to time the engine properly with T250 timing gear on a GT250 engine?
If I was you, I'd time it with a dial gauge FIRST.....and you can then check the marks on the plate
against what your dial gauge says.

Sorry but I can't help with the jetting question since I have no idea what size the stock carbs were.
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