Join Date: Oct 2009
Location: Springfield, OR
I’ve just recently received an 09 raptor 350 and I’ve cleaned the carb multiple times now but it still doesn’t run right. It has stock exhaust and carb jets, has K&N filter and no air box lid, it idles perfect and will run for a bit, but it will start to backfire and pop about half way through the revs, I figured it was bad gas so I ran it for a while hoping it would clean itself out, it ended up getting really hot and died, wouldn’t start for a while and when I did it was doing the same thing, I’m suspecting it’s leaning out but I don’t know how to work with carbs
You need to either richen the jetting (bigger pilot, raise needle, bigger main) or put a lid on the airbox.
Fci, PC5F/I, monster exhaust, +2 Cuervo head, HDD5150, 54mm throttle body, 105.5 14:1, +8 swingarm.
Sparks big core, k&n no lid, yz needle, yz timing mod, +4 swingarm.
Cuervo 870, lectron, msd, monster megs, single a-arm lightened chasis, +14 swingarm.
Cuervo 930, lectron, msd, db fab titanium chasis.