Quote:
Originally Posted by GypsyR
I machined the shim to 0.039" if I recall. "Machining" being me modifying a washer out of my stash to the proper diameter and thickness with emery paper on a piece of glass.
I changed nothing else at that time and it runs great through the rpm range now. Only issue is I have to enrich it a bit on cool mornings a little longer than I would like. Also there's some lean pop at low RPM before it fully warms. Thinking about bumping up the pilot jet one size and seeing if it cold starts more like what you guys say yours does. I think it's at 42, I didn't take notes. Which, yes, I should have. I set the idle air screw when fully warmed. Until I did I was getting a touch of hesitation jumping on the throttle. A pet peeve. On a recent all day trail ride it performed great. My commute in the mornings is where I wish it to warm up a little quicker. More my fault for wanting to rush than anything.
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Maybe you can fine tune with the airscrew (gas screw in our case). It sounds like you are close.
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-2022 5 speed Templar X Orange, OEM 51T rear sprocket, 14T front sprocket
-NOS 2020 KTM 250SX (2-stroke motocross), less than 10 hours on it
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