I love 2 strokes, but this is a bear to start. I've tried all different combinations of jets and needle settings with no luck. I kick on it and kick on it and all I get is a backfire or a little smoke, so it's firing. Carb is rebuilt, boysen reeds, new uni filter, rebuilt top end, fmf silencer with stock expansion chamber. I assume I'm still jetted rich since it ran great this winter at 190 main, 35 pilot, needle jet at 2nd postion from top, checked floats and tried different settings.
How much leaner do I dare jet this thing? Can anyone in Minnesota or a comparable temp place in the world tell me what they are running with there jetting?
I know this is a problem with 2 stokes but this is crazy. I had a 84 ATC 250r and it ran year round without adjusting the carb at all.

Thanks for you input and time

 

buy a keihin carb and all your problems will vanish. you wont be sorry

 

Thanks for your input. I'll give it a try

 

Any idea where I pick one up cheap??

 

ive seen a couple on ebay recently, but id go new, then nobodys had there hands into it.

 

try the air screw the richer on starting the better thats what the choke does

 

Thanks Gassrx for replying. I have tried all setting of the air screw in 1/4 turn increments. Still have the problem.
What does everyone think about switching to a Keihin or some other carb. What are folks using on their Lt250r's?

Thanks

 

Before you give up, and buy a new carb, check the compression.
Also, you can try pull starting it. Just have someone on another quad or lawn tractor, hook up a strap, and pull the quad at about 7 mph. Have your key on, and in 4th gear...and if its posible to start ,it will.

 

Hey thanks for the encouragement[img]i/expressions/face-icon-small-smile.gif[/img] I'll keep trying. I would like to keep it as stock as possible. It does have plenty of compression as I have rebuilt the top end last summer.

Thanks alot for replying