June 29, 201412 yr Hi, We have a 2010 Beta Evo 80 Big Wheel, which needs the pilot jet cleaning regular as it seems to block quite easily. It is a #38 and i was wanting to know if this is the right size ? The bike can also momentarily cut when on half throttle and it catches the lad out when on a climb, is this connected to the pilot jet size ? Any suggestions are welcome ? Thanks.
June 29, 201412 yr 38 jet or much smaller should not block Sounds like you have dirt or water in your fuel, thorough clean out of tank, fuel lines and carb needed, perhaps the in tank filter is faulty.
June 30, 201412 yr 38 is the correct pilot jet,we had the same problem with the engine cutting out,it was caused by low float height,we set it to 16mm and the problem went away.basically it was continually running the carb dry !!
June 30, 201412 yr Author Thanks for all your replies ... twinshockdude - Please tell me where you measured the 16mm from ? Thanks in advance.
June 30, 201412 yr the float height should be 16mm measured from the gasket face to the furthest part of the plastic floats make sure both sides are the same,adjust by bending the central tab - be gentle !!!!
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