I'm new to ATVs and just purchased a used LT80. My kids love it. I had a problem with it leaking gas throught the fan housing, and determined a faulty petcock. I added another in line fuel Petcock, problem solved. Now, after running the LT80 for a few minutes it will no longer idle, it stalls immediately. When running it smokes like a champ...really bad blue smoke. I pulled the plug and it was covered in fuel/oil. Changed the plug and 10 minutes later the same thing happened. After reading this forum, perhaps disconnecting the oil injection will help, but what would be the proper fuel mix? Any suggestions as to what might be the problem/fix would be greatly appreciated.

 

I run premix 32 to 1. turn stock petcock to prime and only use the replacment shutoff. you can remove the oil lines and the oil line on the carb put a toothpick in and break off. premix from now on.
there is a oil pump under the cover by the crank. when you have time remove the clutch covers and remove the plastic clip the runs the pump and clean clutches.

 

32:1 . perhaps carb is also running rich. i would pull it off and check which jets it has plus at what setting the needle is in. if the 80 is stock then it should have stock settings. good luck

 

Thanks, for the suggestions. I'll see what I can do this weekend.

 

Let's leave the injection on for now.
Start with a good carb cleaning. Remove both jets and the float needle seat and clean well.
FYI: jets should be 17.5 and 92.5

 

Thanks for the advice, carb was taken apart and cleaned by a mechanic friend of mine, but I doubt the jets were check. I'll see what the thinks and get back to you. Thanks again

 

He prolly did a good job. [img]i/expressions/face-icon-small-smile.gif[/img]