Poor idle and starting. Is my jetting wrong?
I have a 2003 Warrior 350. It has a k&n air filter and FMF exhaust pipe. Iím having trouble getting it to run smoothly. It does not idle great and stalls, hard to start. I have to keep the idle really high. It runs just okay at full speed. I get some popping out the exhaust sometimes. Iíve been trying to adjust the air/fuel mixture screw but that doesnít seem to be helping. Iíve tried from Ĺ turn to 2.5 turns out. Iím now wondering if I need to change the jet(s)? Iíve cleaned the carb twice and it helped slightly but didnít fix the problem. Currently my main jet is 145 and the small jet is 42.5
To me it seems as if itís not getting enough gas.
What is stock jets?
Would the air filter and exhaust affect the jetting?
If so what jet(s) do you recommend?
Iím in Canada in the prairies so itís low elevation and 70f average temp.
Also, if I need to change the jets do I buy one from the dealer, online, or is a kit better?