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My TTR 225 wont start at times

Hello to all here. I have a '02 TTR 225 with a starting issue. What else? Ha. I have ridden all my life and actually worked for a Yamaha dealer as a Factory certified tech. when I was a young man so I know my way around a bike. My TT has always had the usual quirks, hard to start when battery is not fully charged, hard to start after sitting a long time (over two weeks), hard to start in extreme cold weather, etc. You get the idea. I can live with all that. But recently I am seeing a different issue, at any time, with the engine cold or recently operated (warm) I may try to start it and it will crank strong but not start. I will either have to roll it off and it will start instantly or pull it and it will start instantly. I have checked for spark a couple of times when I catch it doing this and it seems week, but it's there. I also noticed on at least two occasions when the engine was warm just as I released the starter button the engine started and immediatly had a good smooth idle.The bike runs good other than that, good power good idle and good throttle response. I am leaning towards a ignition / spark issue. Can anyone help with the diagnosis, Does the ignition system have a seperate start/run circuit ? or could the starter draw be the culprit ? Maybe someone has had a similar problem. Thanks in advance for any help.

Posted by Anonymous on

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SOURCE: 1990 Yamaha XJ600 refuses to start and only fires

not getting fuel or air then

Posted on Feb 10, 2010

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