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The TTR250 FAQ web pages -> TTR250 -> Repairs and maintenance -> 2000 Yamaha TTR-250
Post Info TOPIC: 2000 Yamaha TTR-250
Tommy


Newbie

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2000 Yamaha TTR-250
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i was riding my ttr mid she just died like it was ch but it wasn't. The RPMS wasn't high, gas flow is good, I even put gas straight into the head and nothing happened a few minutes after I did that I tried to do it again and she back fired, and the spark plug is good



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TTRfan


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Posts: 8565
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Welcome to the forum Tommy!

Your TTR's problem might be something like a leak in the inlet manifold but the fact that it happened suddenly makes me suspect valves. 

An open valve on the ignition stroke would cause a backfire.

My advice would be to get the cam cover off, engine to TDC and check the valve timing is still OK. 

Brian



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