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Polini x3 cutting out at prolong open throttle (plug picture)


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2008 Polini x3 2 stroke is running great other than at prolong wide open straights on track motor cuts out like rev limiter or it running out fuel. This is what plug look like right after he pulled off track. Looks border line lean do I need to go up main jet. I did drop one notch on needle, lowest notch but have not had time to try it again since. Thanks for any help. I like to run bikes a little rich to be safe and this plug is looking to close to lean to me on a 2stroke along with it cutting out a little.DSC_0001-5.jpg.DSC_0003-1.jpg

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So eddie do you think plug looks ok. I was wondering if it was running out fuel also I will check that stuff next.. The plug not wet or rich that is not the problem, just do not want to blow it up. Boy has been riding bike alot harder already this year. He has it flat out by end of straight away now. Thanks for help.

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