MR Ninja MR21 B01 engine Idling high after throttle input?
My .21 Ninja engine idles high for 2-4 seconds after applying, running around, and releasing the throttle, and then it will settle to its normal idle tone after. Itís idling the same way as if you were pinching the fuel line to the carb to kill the engine.
I've tried messing with the idle screw, LSN, HSN, changing plugs (mid plugs). It wasn't doing this the other day when the ambient temperature was about 70 deg; today it was about 80 deg. Iím not sure if the ambient temp is affecting anything to do with this.
I also have an inline fuel filter before the carb that I've noticed sometimes will trap small bubbles of air in it.
Any recommendations? Thanks for the help.