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Why is my 2007 Polaris Scrambler 500 backfiring?
Check for air leaks in the intake system. Extra air getting in can mess up your fuel mixture and cause those pops and bangs when you let off the throttle. Just to elaborate a bit, when your engine gets extra air from a leak, it can run too lean. This means there's more air than fuel in the mixture,Read more
Check for air leaks in the intake system. Extra air getting in can mess up your fuel mixture and cause those pops and bangs when you let off the throttle.
Just to elaborate a bit, when your engine gets extra air from a leak, it can run too lean. This means there’s more air than fuel in the mixture, and that imbalance can cause the fuel to ignite prematurely in the exhaust or intake, resulting in those backfires.
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