Joined
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37 Posts
Hey everyone I am brand new to the forum,
I know there has been many threads on jetting, but I none of them really have explained my question. I have read everything on nightrider.com about this, but it still doesn't help me out fully. I have an 01 night train that I bought last year and put on Vance and hines longshots (no baffles), screamin eagle a/c, and dyno jetted the carb. All this I did last year after 5000 miles. The bike currently has 17000 miles on it, YES that is correct, I ride my ass off. Anyway, after I put the mods on my bike she ran great. no popping, sneezing, farting, or back fireing. I was very pleased. However I took it in to get some waranty work done the begining of the year (primary gasket was leaking along with rocker covers) when I got it back it was runing ok, but just didn't seem right. welll it started to get worse so I looked into it. Started backfiring, popping, farting and sneezing. Found out that some how my throttle cable and idle cables became way out of wack. Idle cable was adjusted as short as it would go and throttle cable was only coming up less than half way to the throttle cam stop. so I adjusted that and fixed all my flat spots and carb problems. real nice response from throttle now. Then I tightened all my exaust and manifold bolts and seems to have helped tremendously on the backfiring (no more actually). I replaced the plugs recently also. while washing my bike I noticed that the inside of my pipes are really sooty and black, so I pulled out the plugs and found that after only a few days they were also the same. This indicates a rich condition. After reading your threads I see everyone is turing out the idle/air mixture screw about 2 1/2 turns, ny dynojet instructions indicate 3 1/2 turns out.....could this be causeing it to run to rich? I have also read about changing the slow jet to 45 Mine is stock so I believe it is a 42 will this help? my main jet is per dynojet instructions for my set up. I believe on up or down from stock can't remember. I want to run as close as possible to perfect combustion and right now it is just too damn rich for me......any suggestions....could the throttle cables have caused this and maybe now it's fixed.......
THank you
I know there has been many threads on jetting, but I none of them really have explained my question. I have read everything on nightrider.com about this, but it still doesn't help me out fully. I have an 01 night train that I bought last year and put on Vance and hines longshots (no baffles), screamin eagle a/c, and dyno jetted the carb. All this I did last year after 5000 miles. The bike currently has 17000 miles on it, YES that is correct, I ride my ass off. Anyway, after I put the mods on my bike she ran great. no popping, sneezing, farting, or back fireing. I was very pleased. However I took it in to get some waranty work done the begining of the year (primary gasket was leaking along with rocker covers) when I got it back it was runing ok, but just didn't seem right. welll it started to get worse so I looked into it. Started backfiring, popping, farting and sneezing. Found out that some how my throttle cable and idle cables became way out of wack. Idle cable was adjusted as short as it would go and throttle cable was only coming up less than half way to the throttle cam stop. so I adjusted that and fixed all my flat spots and carb problems. real nice response from throttle now. Then I tightened all my exaust and manifold bolts and seems to have helped tremendously on the backfiring (no more actually). I replaced the plugs recently also. while washing my bike I noticed that the inside of my pipes are really sooty and black, so I pulled out the plugs and found that after only a few days they were also the same. This indicates a rich condition. After reading your threads I see everyone is turing out the idle/air mixture screw about 2 1/2 turns, ny dynojet instructions indicate 3 1/2 turns out.....could this be causeing it to run to rich? I have also read about changing the slow jet to 45 Mine is stock so I believe it is a 42 will this help? my main jet is per dynojet instructions for my set up. I believe on up or down from stock can't remember. I want to run as close as possible to perfect combustion and right now it is just too damn rich for me......any suggestions....could the throttle cables have caused this and maybe now it's fixed.......
THank you