if it is the carb issue... rejet and you wont have that problem anymore.

 

Amazing, I drained the full out, started immediattly. Thanks everyone for your help! Now Im out riding again.

 

Jetting will not fix this problem. I have had the 132 and 40 jets since the bike had 1500 miles on it, and now with 10,100 if the bike sits for 4 days or longer, its not going to start if I didn't run the gas out.

 

Hey Deej,
Although your "process" works fine, have you tried the "lean bike over" method? I couldn't find the correct allen wrench to drain the fuel out of the bowl but remembered that if you lay the bike over 50 degrees or so and lift it back up if will start. I tried this and it worked perfectly. Quick and painless. (it gets a little heavy all the way over but it is not too bad.......)

KLXelent

 

thats what I do now. just lay it down....wait 5 seconds pick it up and start. quick and easy. I never remember to shut off the valve-plus I never know(most of the time) when I'll go out and ride.

 

Can someone explain to me why laying the bike over 50 degrees for 5 seconds will make it start?

 

Same effect as draining the carb bowl, but the fuel runs out your carb vent lines instead.

I'm not a big fan of doing it that way, but to each his own I guess.

 

My guess is that fuel stabilizer won't help this problem. It sounds like some fuel in the carb is evaporating over time and creating a vapor lock of some kind. By leaning the bike over, you spill some of the fuel out of the float bowl which in turn opens up the valve that lets more fuel back in from the tank and probably fills up the "vapor locked" chamber. I remember the starting drill on my old '93 CR250 (and most of my old 2-strokes) was to lean the bike over until it pissed a bit of fuel. Rock it back and forth a few times in gear and it would start right up.

 

No vapor lock but you got it right with the evaporation. You stop the bike, the engine is hot, you park it up, the carb' is close to the hot engine, the hydrocarbons in the fuel evaporate. The longer you leave it the more evaporation take place. Surface area and volume of fuel. Simple physics.