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› Intermittent surging/bucking problem
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Intermittent surging/bucking problem (Read 269 times)
Charon
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Posts: 1811
Harvard, NE
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Re: Intermittent surging/bucking problem
Reply #15 -
07/23/10 at 06:06:42
There is an old saying - "Carburetor" is French for "Don't muck with it." Like shooting skeet, there are a lot more ways to miss the target than hit it.
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Eschew obfuscation.
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Bubba
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SuzukiSavage.com
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Denver, CO
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Re: Intermittent surging/bucking problem
Reply #16 -
07/23/10 at 07:36:36
Here's what I did to my carb. I'd never messed with one before but after joining the forum I felt like there were symptoms I had that could be corrected by working on the stock setup. Mind you, I had put an after market exhaust on but as I worked through the issues I found that taking things slow and doing one thing at a time to see the results worked out well for me.
1st mod was to change the needle jet spacer to a #4 nylon spacer from ACE. Eliminated the surging in the mid range I was getting from day one.
Changed to a 150 main jet after a month or so to improve the high end some...that worked!
Still had the POP on shutdown and pops between shifts (pretty sure I don't have air leaks in the exhaust)
Threw in a 52.5 pilot jet with bleed holes and that (almost) eliminated the shutdown POP but still occasionally get pops between shifts.
Fine tuned the airmix screw to 2 1/4 turns out.
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'06 lt Blue, Dyna Power pipe, air screw 2 1/4 turns, 52.5 pilot w/ bleed holes, 150 Main, 2/3 spacer, Pirelli MT66 tires, Raptor petcock, 412-4006 Progressive shocks
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09/23/24 at 21:27:24
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