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Old 04-30-2013, 11:24 AM
crassius crassius is offline
Motorized Bicycle Elite Member
Join Date: Sep 2012
Location: USA
Posts: 2,786
Default Re: I can se sparks(spark plugs)

that ring should be compressed very tightly - I suspect that you have cross threaded your plug and are seeing flames from the combustion rather than sparks

take out the plug and put it back with fingers only until it is all the way down, then use your wrench on it - if it won't go in easily, you may need a new head or a helicoil in the head
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