Good Lower Profile Spark Plug

Treyfer

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May 15, 2022
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I installed a 100cc 2 stroke on a newer aluminum Schwinn frame . Everything is good but I can't use a normal size NGK plug due to a smaller clearance between the top frame and angle of it , to the top of the plug itself . I can barely get the plug boot on . Can anyone please suggest a shorter profile spark plug of NGK or Champion brand to cross reference ??
 
I installed a 100cc 2 stroke on a newer aluminum Schwinn frame . Everything is good but I can't use a normal size NGK plug due to a smaller clearance between the top frame and angle of it , to the top of the plug itself . I can barely get the plug boot on . Can anyone please suggest a shorter profile spark plug of NGK or Champion brand to cross reference ??
Maybe a ngk B4-LM might work or a #3410 or like a j17-lm or j19-lm
 
Be careful with the shorter plugs. I ran a stubby type plug and it overheated on long runs.

Can your head be flipped around? I mean, if your plug is pointing to the rear, try rotating your head 180 degrees and point the plug forward.
 
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