It's not crazy high but I'd estimate like rpms? Since the idle screw makes no change to the engine speed I'm assuming something else. 2. The engine may be overheating. The Fix: Check and repair cooling system. . when engine is hot idle gets faster and blue smoke from one cylinder how can. When the engine is warm, it idles VERY high! Somewhere . On my KTM 2- stroke carburetors they are called air screws, and do the opposite.

If i start my bike up it idles ok for about mins at as it gets hotter i have to turn the airscrew in till its nearly closed then it will idle. I can get it to idle down fine but if I twist the throttle and throw a rev or two, it won't come back down, it stays idling up way to high, but if I crack the carb boot, and do a vacuum test of the motor to find out where the leak is. After about a minute of idling (yes, I know it's a long time), the engine will Pilot is 40 (stock), airscrew 2 turns out, MJ is , and needle at #3. Ok I was testing the bike again today, and after warming up for a little bit, I started off nice and slow. noticed the engine revving high when pulling in the clutch, which scared me.

Does it continue to REV high after you open the choke? My 2 stroke does this as well there is an older Thread that covers this but I can't remember what It only does this before its warmed up, when i have the choke on. The bike ran extremely well from just off idle, but started the same way yours is now. Runs on choke - The vehicle may run on choke when it's warm but stalls if the Hanging idle - The engine idles high and then drops and stalls. . In doing two stroke tuning we would change settings, start the bike and run it. Curing 2-cycle Engine Problems: Many 2-cycle engines have problems and are thing I see is start it warm it up n adjust fuel/air screw to were it idles just right. Stuck cables, false idles, ignition failure, valve issues, fuel issues, and more Up until very recently, most bikes have had at least two cables that can go bad If your bike isn't idling right, warm it up and take note whether adding Lean running engines tend to “hang up” at high rpms when the throttle is let.

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