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Old 04-09-2014, 07:42 PM
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mapbike mapbike is offline
Motorized Bicycle Elite Member
Join Date: Mar 2010
Location: Central Texas
Posts: 5,379
Default Re: Over Torqued head bolts =( please help ASAP

Look up installing heli coils on youtube and you can see the process, that is the simplest thing I can tell you right now.

If you engine is a china girl and has 8mm cylinder/ jug studs you will need to determine if you have 8Mx1.00 threads or 8Mx1.25 threaded studs, it seems that the latter is the most common but I have engines with both.

Or you can order a new set of studs with the other hardware from Sick Bike Parts at which ever thread you want and then buy heli coil thread repair kit to match the new studs, I would recommend the new studs personally.

Hope this helps ya a bit.

I dont always ride WOT, but when I do..I do my best to keep the rubber side down..Ride safely my friends!
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