Re-jetting not needed when using a 2-1 exhaust
#11
06-02-2005, 08:55 PM
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RE: Re-jetting not needed when using a 2-1 exhaust
Well, I stand corrected. I had it dyno tuned yesterday and as it turns out, it WAS running a little lean. HP came out at 61 with 76 ft/lbs of torque. He went up two jet sizes to a 200 main jet.
Bike runs great, pulls well too. The Thunderheaders are farking monsters!
Bike runs great, pulls well too. The Thunderheaders are farking monsters!
ORIGINAL: TCSTD
I would seriously doubt your mechanic. Don't know of any bike that had low restriction intake and exhaust on it that didn't need rejetting. The idle mixture screw is just that , idle mixture and doesn't extend even to 1/4 throttle settings , and you are leaning out the mixture above idle with your mods where the idle mixture will not help much at all. The enclosed attachment will show you the functioning areas of the circuits in the carb. I would suggest with your combination to run a #46 slow jet, a #190 main jet and shim up the jet needle with 2 - #4 brass washers, then readjust the idle mixture warmed up to the highest and steadiest idle mixture, readjust your idle speed to specs and HOLD ON TIGHT
[IMG]local://upfiles/2318/59F7236ABC164B4297B3C465283217D3.jpg[/IMG][
I would seriously doubt your mechanic. Don't know of any bike that had low restriction intake and exhaust on it that didn't need rejetting. The idle mixture screw is just that , idle mixture and doesn't extend even to 1/4 throttle settings , and you are leaning out the mixture above idle with your mods where the idle mixture will not help much at all. The enclosed attachment will show you the functioning areas of the circuits in the carb. I would suggest with your combination to run a #46 slow jet, a #190 main jet and shim up the jet needle with 2 - #4 brass washers, then readjust the idle mixture warmed up to the highest and steadiest idle mixture, readjust your idle speed to specs and HOLD ON TIGHT
[IMG]local://upfiles/2318/59F7236ABC164B4297B3C465283217D3.jpg[/IMG][
#12
06-02-2005, 09:42 PM
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