hard starting

3 replies to this topic
  • bowser927

Posted August 09, 2006 - 03:25 PM


i just got back from basic training this summer and now when i go to start my 2002 yzf 426, it wont start. I have to coast start it. Once it is warmed up it will start fine, but if it sets for an hour i have to coast it again. I changed the plug and its got brand new 94 octane gas in it. It started fine when i left. I didnt know if the valves might need adjusted or what. Any help is appreciated.

  • yamaha rider08

Posted August 09, 2006 - 03:31 PM


well there may be a easer solution to your problem. but it may be that you valves have to be reshimed. but i am not sure. may be your air filter is dirty

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  • grayracer513

Posted August 09, 2006 - 04:03 PM


Start with checking your valve clearance. Tight intakes will cause this. If that doesn't do anything for you, ask yourself if the choke seems like it's working (does it make a difference when it's on, or not?). If not, your problem might be a clogged starter jet in the carb, or something similar.

  • quailboy

Posted August 09, 2006 - 09:08 PM


just run it alot and try and blow the crap out of it that is there from sitting for the 15 weeks

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