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Dirt Bike Brands - Other
Spark Plug Problems
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[QUOTE="76GMC1500, post: 1169389, member: 73139"] This picture of the underside of the crown is the reason I don't run a hotter plug. Honda recommends the 9, in 40 hours of riding I never fouled a plug. Only recently I have began having problems. The bike does load up on the tightest single track trails, but a quick rev clears everything out. The tracks and trails I run have some 5th gear straights, so I'd rather error on the side of cold and risk fouling a plug vs. burning a piston. The 87 CR250's had higher compression ratios than most newer bikes (9.1:1), the combustion temps are a little hoter. [IMG]http://i24.photobucket.com/albums/c8/76GMC1500/DSCF1916.jpg[/IMG] [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
Spark Plug Problems
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