engine trouble

[thorrider400]

I have a 2002 400ex and I am getting fuel, air, and spark. It also turns over but, it won't start. Can anyone help?

[400eXr1d3rZ]

Make sure the gas is on, make sure your killswitch is on. Did you recently rebuild it? Mess with the carb? Correct jetting?

[thorrider400]

the gas is on. i haven't rebuilt. i did get a dial-a-jet for it about 2 months ago.

[400eXr1d3rZ]

Did you check to see if the killswitch was on?

[Kaleigh]

yea.. try flicking your kill swithc back and forth a few times.. mine had the same problem.. it was the kill switch.. is your airfilter dirty? i know you said you're getting air but im just making sure..

when did this happen.. how long after you rejetting.. maybe there is something stuck in the carb.. maybe time for a carb clean..

[250X_project]

So NOTHING changed sense last time started? Maybe the colder weather is doing it to you. Are you running a 42 pilot jet? Using the choke? How long since last ran?