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View Full Version : Black residue on exhaust tip



BassHunter0123
05-10-2009, 12:08 PM
got a little bit of black residue on exhaust tip. just wonding if this is normal? will it hurt my motor? if so what do i need to do to fix it? thanks

Snipe
05-10-2009, 12:11 PM
Black residue is usually a sign of running rich, Depending on how heavy it is.

Slight residue is ok stick your finger in and pull out a black nub prob running a bit to rich.

If you have that happen you most likely should be able to see it smoke now and then.

If no smoke while running its just a normal thing.

BassHunter0123
05-10-2009, 12:31 PM
it runs good no smoke. i dont think im going to go anything about it. unless someone says otherwise

racerdan24
05-10-2009, 01:22 PM
agree with above posts...i would rather have rich than lean...cheaper to replace a rich spark plug than having to rebuld a lean motor

05-10-2009, 02:39 PM
even jetted the best you can without making custom jet sizes for in between you will see carbon on the end. Wipe it off and go for a ride, if its built up a lot in 1 ride you might want to adjust your fuel settings but if its a light coat its normal. Like mentioned better to be rich than lean.