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The TTR250 FAQ web pages -> TTR250 -> Modifications -> Carb boring the Teikei
Post Info TOPIC: Carb boring the Teikei
OzzyRZ


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Carb boring the Teikei
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Has anyone bored out the Teikei on the TTR250? 

If So, what are your thoughts.

I am nearing completion of my 325 build and was considering boring the Teikei so the bottom of the throat is the same as the top 



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TTRfan


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Hi Matt

A really good question but I have a feeling that you may be the first to do it on this forum!

There was a guy called Phil Manning (I think) up in the Midlands used to offer this service to TTR owners but, by the time I became interested, I couldn't trace him. But I know it can be done with, apparently, good results biggrin

I hope you get some answers.

Brian



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OzzyRZ


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I think it would allow it to have better top end breathing. Especially with my header/pipe/325cc combo.
I think i will have a crack at it. Lol

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TTRfan


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Excellent. Please take photos and keep us update on progress!

How you going to measure the improvement - dyno or seat of the pants?



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mossproof


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I'll be very interested to hear the results - not seen a TTR carb done yet. Don't think Geoff Ballard did it - anyone know?

Should make a difference for sure. Add a bit of gentle head porting while you're in the mood?


Take care not to damage that pumper jet nozzle!!



-- Edited by mossproof on Thursday 20th of February 2020 10:17:21 PM

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