Harley-Davidson FLHTCU Backfires On Dyno Run
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Tractor on a dyno......
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Ain't runnin rich. Occasional pop in through the exhause has a bunch of reasons. Usualy fuel mixture isn't it. If it's steady the timing is retarded. You should hear the pipes pop when the hot wire from the module grounds out. Now that's a magnificent pop!
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10 seconds are worth watching.... the rest is just so boring
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Sounds nice, but its probably running too rich :)
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I have pipe popping and flare-ups on slow down, but nothing like that...was there an issue or was it just tuned for a richer application like drag racing?
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Fire fire fireeeeeeeeeeee!!!!
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that isn not backfiring! that is afterfiring.
backfire is through the carbs.
afterfire is unburnt fuel firing/exploding in the exhaust, AFTER the combustion chamber.
ragssplat 3 years ago 6
whats up with all the raw fuel? sounds like it was running like shit.
rfs12345 4 years ago