wondering if any of you have run into this?2009 klx250s,main fuse good.no fire to plug.seems odd for a almost new bike.any suggestions welcome

 

Does the starter turn over the motor?

 

Have you checked your kill switch?

 

more info would help a lot. first things first though, does it turn over and did you have the kill switch flipped. after that, look for spark and fuel.

 

it does turn over fine.its got gas and kill switch is in start position.

 

Engines need three things to run, spark, fuel and air. Assuming no one has been inside the engine, which should rule out valve shim and timing issues and assuming you don't hear bad noises from the top end which would rule out cam chains and ACR issues, I'd start by ruling out the easy stuff, is the airbox clear and free? Is there fuel getting to the cylinder? Can you confirm you have spark by removing the plug and turning the engine over to see the spark?

From there, once you know which of the three is lacking you move to correction. No fuel, check that the petcock is on, fuel is flowing. No air, check that nothing made a nest in your airbox. A few months ago I put a seat pad on my bike and rode around all morning, I didn't like the location of the pad, so when I stopped for lunch I moved the pad a bit. After lunch the bike wouldn't start no matter what we tried. After a few hours of trying we gave up and I towed it home, only to realize as I was driving home that I moved the strap of the seat pad back and it was covering the airbox snorkle. Sometimes it is the easy obvious stuff.

No spark, start with the coil, power to the coil, power from the coil, check coil resistance, all check out, check the cut out safety switches, then move to the CDI, check it per the shop manual. No easy single quick answer, it is a process of elimination.

Also these bikes are known for hard starting when they sit even for a short day or two. Have you drained the float bowl to both confirm fuel is flowing from the petcock and to start with fresh fuel in there? A shot of starting fluid in the airbox never hurts to confirm spark is working, etc...


A test light and multimeter along with a service manual are your best friends if it turns out to be electrical.

 

How long was it sitting? I blame bad gas. Drain the carb and give it another try.

 

the 09 will not turn over if the kill switch is in the off position...

 

There is a link to the service manual "stickied" on the front page.

 

Do you have spark at the plug?

David