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backfire flame
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[QUOTE="Rich Rohrich, post: 77066, member: 16241"] Generally speaking, backfires after the installation of a new pipe tend to be the result of an overly LEAN mixture, or over-scavenging at low speeds. If the mixture gets lean enough the fuel burning is VERY SLOW and will still be going on when the exhaust valve opens which causes the flames. It would be worth your while to check with the pipe manufacturer for suggested jetting changes with the new pipe. [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
backfire flame
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