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TOPIC: Re:Jetting help
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Jetting help 4 Years, 1 Month ago
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I'm getting a loud backfire out the exhaust on hard decel. I just did the stage 3 exhaust and added a Speedstar (K+N) filter. I rejetted the carb with DJ jets 175 main, 4th grove, and PMS out 3 turns. I did the WOT test and it is not running lean. Is this a PMS issue or Main/needle issue.
Thank You |
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Re:Jetting help 4 Years, 1 Month ago
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BearNuts wrote:
I'm getting a loud backfire out the exhaust on hard decel. I just did the stage 3 exhaust and added a Speedstar (K+N) filter. I rejetted the carb with DJ jets 175 main, 4th grove, and PMS out 3 turns. I did the WOT test and it is not running lean. Is this a PMS issue or Main/needle issue.
Thank You
What's the elevation ASL of where you live? That has a lot to do with it...
RK
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Re:Jetting help 4 Years, 1 Month ago
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Are you positive you have no intake or exhaust leaks? Did you do the WOT with the clip in the 5th groove? Did you set the PMS using the in / out method? |
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Re:Jetting help 4 Years, 1 Month ago
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I checked for intake leaks and I did not find any, I did the WOT with it on the 4th groove. I did do the PMS using the in and out method. It started doing it when I did the jets and the airfilter. My elavation is 126 ft above sealevel |
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Re:Jetting help 4 Years, 1 Month ago
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BearNuts wrote:
I checked for intake leaks and I did not find any, I did the WOT with it on the 4th groove. I did do the PMS using the in and out method. It started doing it when I did the jets and the airfilter. My elavation is 126 ft above sealevel
Reads the WOT article ( WOT)and then redo the test. At that close to sea level I'm guessing you are too lean.
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Last Edit: 2009/05/20 15:10 By Musky.
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Re:Jetting help 4 Years, 1 Month ago
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Ok I'll try that.Thanks for the help.
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Re:Jetting help 4 Years, 1 Month ago
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And DJ doesn't give you the one jet that you probably need. Their kit goes from 175 to 190(or is it 195?) and in a DJ you probably need a 180.
I've been running with a 175 and knew it was too lean. Finally got my hands on a 170 Mikuni and it's like a new bike now. |
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Last Edit: 2009/05/20 15:26 By BigBoyinMS.
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2006 Midnight
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Re:Jetting help 4 Years, 1 Month ago
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The kit does jump up to 190. I'll try to find a 180
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Re:Jetting help 4 Years, 1 Month ago
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Your right. I've opened the door I might as well keep going
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