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General Category >> Rubber Side Down! >> Backfires between shifts
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Message started by vulcan2go on 04/03/12 at 20:53:43

Title: Backfires between shifts
Post by vulcan2go on 04/03/12 at 20:53:43

Have 2002 Savage with stock carb and stock Harley sportster muffler. I have adjusted the idle mixture screw out and taken half of the white spacer out. I have no more backfires on deceleration, but between shifts it still makes a little pop. Does anyone have any ideas on this? Do I need to do some re-jetting because of the muffler change?
Thanks,
DJ

Title: Re: Backfires between shifts
Post by verslagen1 on 04/03/12 at 23:37:55

check the header and muffler joints for air leaks. use a lit candle.

Title: Re: Backfires between shifts
Post by justin_o_guy2 on 04/04/12 at 01:56:43

If you dont lite the candle, you mite as well use a crayon,

Title: Re: Backfires between shifts
Post by Routy on 04/04/12 at 05:04:33

Thots ??
If I didn't have any backfire on my Savage, and I couldn't fix it myself, I'd guess I'd have to have a shop at least try to fix it ! :-/

Or didn't you know that a correct running Savage is well known for backfiring ? :o

Title: Re: Backfires between shifts
Post by serenity3743 on 04/04/12 at 07:43:32

It might help to idle it up a little bit.

Title: Re: Backfires between shifts
Post by Savage_Rob on 04/04/12 at 15:14:29

When I used the Mikuni carb, I found a slightly more open pilot helped that.

Title: Re: Backfires between shifts
Post by Buster on 04/04/12 at 15:44:33

77786279656370727A7463110 wrote:

Mine has less than 100 miles on the odometer and I do believe it has backfired (guessing) 25 times. Neat.

[Update] At just over 200 miles the amount of backfires seem to have slowed way down. >:(

Title: Re: Backfires between shifts
Post by justin_o_guy2 on 04/04/12 at 16:35:25

Go clutchless & see how that goes..

Title: Re: Backfires between shifts
Post by Cavie on 04/04/12 at 21:45:12

I had the carb rejeted, K and N filter, Harley muffler, valves adjusted. Runs great. Pops between shifts. Live with it. Rejet the carb. Your bike will love you for it.

Title: Re: Backfires between shifts
Post by LANCER on 04/05/12 at 08:57:52

If you are anywhere near 2.5-3 turns out on your pilot screw then go up to the next larger pilot jet, turn the pilot screw back down to 1 turn out and retune for the best/highest rpm...the point where if you go in or out the rpm decreases. That's called the SWEET SPOT. After you find it then use the idle adjusting screw to set the idle rpm back to 1100 rpm