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Need help with jetting


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Since you don't have a leakdown tester I wouldnt try and make one, I would make this thread like 300 pages long explaining the exact same thing over again. ignoring each time some one told me to do a leakdown test and just try it again and see if the motor fairy fixed it while i slept.

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It wouldnt hurt to check your flywheel out. A dirty flywheel will cause a week spark causing issues simmilar to what your describing. While your there check the pickup gap. Im not saying this is your issue but its an easy check.

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Compression is 140 on both cylinders. Cleaned out the carbs again and it seems to have done the trick. One exhaust pipe is smoking slightly more than the other. Both air screws are 1 turn out. Should I be concerned? Spark plugs are brown.

 

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If that's what the motor likes that is fine. Was that where you had the best idle with the most crisp throttle response? Generally if you have to turn it in to 1/2 or less to get the best idle and crisp off idle response you need a larger pilot and if you have to turn it out to more then 2.5 turns then you need a smaller pilot.

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A/f screw is part of the idle circuit so unless your only letting it idle then the plugs wont be a perfect indicator. More then likely with a 30 the sweet spot would be more around 1.5 but im guessing you tried that before you went to 1? with the bike idling if you move the screws from 1 to 1.5 and wait about 20 secs does the idle raise? I normally start off at a couple turns out then in small increments turn them in on both sides then wait to see how it effects idle once i find out where it lowers the idle i then move it back out about 1/8 of a turn.

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Seriously? Yes im fully aware you can adjust the idle screws to change the idle... Idle screws raise the idle by raising the slides. The air screws when turned out raises the idle because it added more air making it lean. not the same thing. Try setting the air screws as i stated above. The object is for it not to effect the idle by making it lean but just be just above lowering the idle from a rich condition caused by having them in too far.

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