Question about 2002 Yamaha TT-R 250

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95 ttr 250 surges then dies after riding for a minute or so. wait another minute and it will run again for a shorter amount of time. have checked, adjusted and replaced carby,spark plug,coil,fuel tank and filters,battery,disconnected lights and cut off switches. have taken stator out and wondering if there should oil in there? any other ideas would be great

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Sounds like the needle and seat valve is the problem. I would take the float bowl off and check it again to ensure that it is moving freely up and down, check the end of the needle valve to ensure that there is no distortion on the valve. Also check the carb boot over between the carb and the cylinder head, check for cracks or hole or even the bolts they may have become loose.
As far your question about oil coming out when you have taken out the stator . Don't worry this is normal.
Hope this helps.

Posted on Sep 05, 2009

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