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trying to figure out my pilots


kedge82

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ok so i got tors removed with 30 p in right now about 1 3/4 out put in 25's to see if there could be an improvement on my low end but they also had to be turned out 1 3/4 turn with no sign of differnce. now how could to differnt piloets get thesame outcome? any help or ideas?

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not doing any real riding just around the block. i let it warm up try to adjust idel get it to stay running and in descent sound at an idel then run it around the block about 1/4 mile strech and go from there

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  • 2 weeks later...

I'm having a similar issue. I can't get the airscrews to have any effect on the motor. T5's, vf4's, ported cylinders, cfm airbox with k&n's, and boss intake. Ride at sea level. 27.5 pilots in right now and the air screw does nothing.

You need 30's for your pilots. You are lean....so airscrew can't help because every setting in lean. Normally a motor like yours might be happy with 27.5's, but the V-4's need more fuel so one size larger pilot is required. 

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  • 2 weeks later...

You need 30's for your pilots. You are lean....so airscrew can't help because every setting in lean. Normally a motor like yours might be happy with 27.5's, but the V-4's need more fuel so one size larger pilot is required. 

Sounds good. I will order some 30's and see what happens. Thanks

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PM me your email address and I well send you a document for tuning keihin carbs (same concept) and its very clear on the pilot circuit. Maybe that will help put you on the right direction

 

Thanks Johnny. I think I figured it out though. I took it out for the first time yesterday and did some tuning. I still have the 27.5 pilots in with the air screw out .5 turns. I'll be putting in 30's soon. I know how to jet carbs, but this had me stumped. Usually if the air screw has no effect the pilot is way off in either direction. I think what happened was when I first fired it up I had the slides in backwards. After I realized it and fixed them the pilots have have been loaded up. So the first time I tried to take off I had a really bad lean bog. I had them set at 1.5 turns out. All good now. Motor is air tight btw. Thanks again.

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