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Spark Arrester hurt hp??
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Posted by: kawasaki_ridah

does the Spark Arrester hurt or help the hp.

Posted by: montyjcm

It doesn't help, but I can't tell a difference (other than sound) when I run mine and when I don't.

Posted by: Freestylemxr

I think it takes a way a little bit of HP, not enough to make any kind of a difference though

Posted by: kawasaki_ridah

alright and it wont hurt the motor doing that?

Posted by: montyjcm

Nope, it shouldn't.

Posted by: Billdog350

You'd have to see what backpressure that endcap is giving. You might lean out your motor "slightly" by removing it and not rejetting. Will you see the improvment on a dyno? dunno....if there is a 1 hp difference I'd be amazed.

Posted by: Freestylemxr

Yea it dosn't make a big difference at all, and it shouldn't hurt the motor at all either

Posted by: z-4debt

I took out the spark arrester and soemtimes when i rev it and as the rpms go down it back fires this just normal?

Posted by: Billdog350

If you didn't rejet, thats because you're too lean and the backfiring is an indication. Try rejetting properly with a dynojet kit and you'll get rid of that problem. Keep in mind that running too lean can burn up exhaust valves.