engine back fire

[Cwad_BoyEX]

ok i have a k&n air filter , dyno jet kit with a 146 jet installed and i have the spark arrestor off and when i let off on the gas it back fires a little bit does that mean i need more fuel or what?

[ReconRider25]

what quad is this on? could be your jetting

[speedy400]

i think that meens your needing more fuel but I forget what you need to change, I'm also having that problem on my 416. It's not bad, just enough to annoy you.-darren

[stupid driver]

its ur fuel screw. Try bakkin it out in 1/4th turn increasements until that popping stops on decel. That shud stop that poppin;)

too lean brother.

[mcmike]

Put your silencer back on and I'D bet it quits backfiring.

[chucked]

Put your silencer back on and I'D bet it quits backfiring.

i bet that would help

i thought that if it backfired it was to rich; to much gas so the left over gas gets out and explodes outside the combustion chamber???

[nofearhonda]

If its backfiring on deceleration it means your too lean, go up on the main jet. with what looks to be your mods 146 dyno jet I think is like the same as the stock kehin 148, try a 148 dyno or a 150, and ruin a 40 pilot. leave needle alone, just my .02