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  1. J

    3120XP runs lean after 272XP coil swap (problem resolved with a 1.18mm drill bit)

    This saws carb has a fixed high jet, and after the coil swap, wide open throttle rpms reach over 13,000. Even with the low backed out to 3 1/4 turns, the rpms are scaring me at 13,100. Does the high jet need to be drilled out to a larger size? Or is there another solution to getting more fuel...
  2. J

    372xp 50 pulls on cold start

    Once started it will start again easily after a day of sitting, but after sitting for a week it takes at least 50 pulls or a shot of gas down the carb to start. Could this be the inlet needle not seating? Any suggestions appreciated. Thanks.
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