Help! KTM440 won't idle !
hey all, just acquired a 1994 KTM 440. All I have to say is OMG this bike has insane power ! It rips through each gear, lots of compression, and no stalling or problems when I rev it. However, the dang thing will NOT idle if I let it sit on its own. I have to keep the throttle cracked for it it idle. As soon as I let off the throttle, she stumbles and dies.
I pulled the carbs and cleaned every nook and cranny, including the jets, floats, etc. The carb actually look REALLY clean, but I cleaned it anyway. So I know it's not a clogged pilot jet causing the problem. I also put in a new plug...but I used an Autolite plug instead of the NGK because Napa didn't have it. I will be installing a NGK soon, but I don't think it's the soul cause of the rough idle. I put in fresh 91 octane with synthetic Motul, so I know it's not bad gas.
The only thing I could think of is possibly bad reeds. I haven't pulled the old ones out yet, but judging by the air filter and plug (and lack of previous owner maintenance) I would assume that the reeds are ruined. My question is, could bad reeds actually cause no idle/stalling issues? My bike runs GREAT, it just won't idle at all. I even set the air screw on the carb.