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ebo 4356
01-07-2007, 05:31 PM
I bought my 400ex in may. Last week i was going down the road and the quad stalled. since then i thought it was my cam chain well today i took apart the cylinder head and i found out that the hole you put the spark plug in is stripped. So i cant get the spark plug all the way in. So do i have to buy a new cylinder head or what? Please Help!
BigFish
01-07-2007, 05:35 PM
heli-coil or buy a new head:(
ebo 4356
01-07-2007, 05:53 PM
Whats a Heli-Coil.
BigFish
01-07-2007, 06:02 PM
A descent write up on a helicoil...

http://www.roadstarmagazine.com/modules.php?name=News&file=article&sid=233

I bought my last kit from NAPA, but u should be able to find them at any auto parts store or hardware
miller821
01-07-2007, 11:26 PM
Hmm... I broke my spark plug off in my head one time because the threads were cross-threaded. I took it to a local auto/machine shop and they drilled it out and re-done the threads. Should be able to do yours also, and it would be a lot cheaper than buying a new head. Only cost me $20 so I couldn't complain one bit.