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Canadian Daves JustKDX
Jetting questions (kinda long)
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[QUOTE="Mac, post: 75523, member: 18503"] You should not see gas coming out the overflow with the bike on its sidestand, float is too high. This will not completely fix your problem but it makes a carb harder to jet. Fix this before jetting! Most KDXers are running between 40:1 and 50:1 with good results. I run the stock needle. -------------Quote from Dave----------------------------------------------- Try both the 42 and 45 pilot jets and fine tune the circuit with your air screw until you get the best possible throttle response. Many people find that the 45 works better with the rev pipe and use fairly small air screw settings, often between .75 to 1 turns out. Small adjustments make a big difference so don't be afraid to play with the air screw. -------------------------------------------------------------------------------------- I agree that the pilot circuit is tricky to get right, I found that slightly richer on the pilot is better than slightly lean, I will also be trying a 45 pilot as soon as it shows up(destroyed my old one...long story) and have a feeling I will need to run it around 3/4 turns out. I tried a 42 pilot with temps around 55 deg and performance was awful even @ 1/2 turn out. I am seriously considering the rb-designs carb mod, this with the REV pipe should be a great combo. [/QUOTE]
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Dirt Bike Discussions By Brand
Canadian Daves JustKDX
Jetting questions (kinda long)
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