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› Re: Back firing solution....
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Re: Back firing solution.... (Read 10 times)
SteveRocket1
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Re: Back firing solution....
09/09/07 at 21:00:20
If you do a search you will find out why the Savage backfires and a lot of different solutions by cleverer people than myself. All the information you need is here and I believe the person who informed you is a little miss advised.
Steve
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'87 Savage but now with a Supertrapp muffler with 8 disks and competition end cap, TKat Fork brace, oldfeller airfilter, Z Bars, Turn Signal bleeper,Rather Loud Horn. and cousin Bonnie too..
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southerngirl
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Re: Back firing solution....
Reply #1 -
09/09/07 at 21:34:13
thanks steve,
I was just wondering about what he told me, I have ordered the dyna muffler, and I am having the rejet done, I just thought it was weird that when I changed shifting it stopped the back firing but I do need a long term solution that wont damage my bike
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slavy
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Re: Back firing solution....
Reply #2 -
09/09/07 at 21:36:29
What a friend of a friend told You is not true. Changing shifting pattern changes the circuits of the carburetor that You are using, so You are avoiding the lean spot.
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Balderdash
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Re: Back firing solution....
Reply #3 -
09/11/07 at 12:30:12
Shifting like that will not hurt your bike, but you are putting more wear and tear on it by keeping it in the higher RPM's all the time.
However, it is not a mechanical fix to the carb's air/gas ratio problem of being too lean from the factory.
Rejetting the card yourself, or paying someone else to do it for you, is a better long term solution to the problem and will allow you to drive the way you like
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verslagen1
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Re: Back firing solution....
Reply #4 -
09/11/07 at 13:20:41
basically, from what your friends friend told you, you might as well set the idle rpm at 2000, and never get into the lean idle rpm's. Would I do that? no.
For the most part, the backfiring (or more correctly afterfire) can be solve by readjusting the pilot screw.
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mornhm - FSO
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Re: Back firing solution....
Reply #5 -
09/11/07 at 13:40:10
What your friend's friend said about a partially clogged carb contributing to a lean condition is true. Clean carbs are your friend.
As far as where to shift, I don't remember the shift points well enough, but just upping the RPMs is not a great solution on a savage unless you were really dragging the engine down before downshifting. And, yes this would also contribute to the problem.
As others have pointed out the solution is changing the factory "lean" condition. As Verslagen1 pointed out the pilot screw will solve most if not all of the problem.
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southerngirl
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Re: Back firing solution....
Reply #6 -
09/12/07 at 18:01:17
Thank you all for your help..... I am reading evry thing i can find on rejetting so I can do it myself, hopefully soon.....
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mavinwy
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Re: Back firing solution....
Reply #7 -
09/13/07 at 10:54:27
It is not too hard, but can involve some experimenting. I went through 3 different jet combos/white spacer thicknesses until I got the wife's bike "right" for what we did with intake and exhaust mods.
So don't get frustrated if it does not work exactly the first time. Just take your time.
For what it is worth, each set of jets ran me $9.00....the $27.00 and some tinker time was well worth the value of getting the bike to run the way SHE wanted it to
Mav
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