CadillacBanshee Posted February 21, 2006 Report Posted February 21, 2006 (edited) Im tired of changing jets and messing with the needle. I'm looking to you guys to let me know where i should start and go from there. Mains, Pilots, and needle pos. PROBLEM: My bike will only idle if i turn my idle screws all the way in and at mid throttle the bike boggs pretty bad. Absolutly no low end and the bike has to be in at high rpms to go anywhere. Right now i got a 390 jet, and the needle is at the third pos from the bottom. I'm at sea level. MODS: Full Drag port t5's stock carbs tors removed vito's dual stage reeds boost bottle noss head with 21cc domes k&n's reed spacers +4 timing Edited February 21, 2006 by CadillacBanshee Quote
FIRST BANSHEE Posted February 21, 2006 Report Posted February 21, 2006 Im tired of changing jets and messing with the needle. I'm looking to you guys to let me know where i should start and go from there. Mains, Pilots, and needle pos. PROBLEM: My bike will only idle if i turn my idle screws all the way in and at mid throttle the bike boggs pretty bad. Absolutly no low end and the bike has to be in at high rpms to go anywhere. Right now i got a 390 jet, and the needle is at the third pos from the bottom. I'm at sea level. MODS: Full Drag port t5's stock carbs tors removed vito's dual stage reeds boost bottle noss head with 21cc domes k&n's reed spacers +4 timing 476696[/snapback] a drag ported engine isn't going to have low end.if your idle screws were not installed properly, they will have little adjustment. Is your bog feel flat or is it stumbling? if it feels flat, I would suggest a bigger pilot, and adjust your air screws. and lower your clip. Quote
wesw Posted February 21, 2006 Report Posted February 21, 2006 you need some bigger carbs if you have a drag port. but if you want to use the stockers. you need to go up on the pilot at least 27.5 maybe more. and raise the needle 5th clip. 390 main is big your probably need a different needle more thinner and shorter for more fuel. thats why your running that big of main. i woudl get some 30 + carbs imo if you want the full performance. Quote
CadillacBanshee Posted February 22, 2006 Author Report Posted February 22, 2006 Its a stumbling bogg, like it wants to but just can't. Im gonna try the needle setting on the 5th, if that don't work im gonna change the needle and the pilot. Any recommendations? Quote
ellison445 Posted February 22, 2006 Report Posted February 22, 2006 Yeap, Bigger carbs!!! Your starving the shit out of that motor, who did the drag port for you? What size carbs did they recomend for you? Its a stumbling bogg, like it wants to but just can't. Im gonna try the needle setting on the 5th, if that don't work im gonna change the needle and the pilot. Any recommendations? 477308[/snapback] Quote
CadillacBanshee Posted February 24, 2006 Author Report Posted February 24, 2006 My needle has 6 slots, put the clip in the lowest possible? Quote
Banchetta Posted February 25, 2006 Report Posted February 25, 2006 A stumbling bogg, like its spitting and sputtering??? That means its too rich...If it just hesitates before powerband, then its lean.....From what your saying w/ the air screw, I'd go up at least one size on the pilot and go from there...It should idle. Does it start hard? Cold? Warm? A lean pilot will require the choke all the time. A rich pilot will start in cold weather w/o the choke and idle great when the motor is cold, but won't idle once the motor is warmed up...I'd start there... Quote
CadillacBanshee Posted March 3, 2006 Author Report Posted March 3, 2006 I was just about to change my pilot to a 27.5 and i noticed that theres a 30 in there. Whats next? Change it anyway? or leave the 30 in there? Quote
CadillacBanshee Posted March 3, 2006 Author Report Posted March 3, 2006 I was just about install a 27.5 pilot and i noticed that theres a 30 in there. Whats next? Leave it in or swap it? Quote
wesw Posted March 3, 2006 Report Posted March 3, 2006 27.5, 4th clip and some 340 adn go from there. Quote
rocketboy Posted March 3, 2006 Report Posted March 3, 2006 do the "choke trick" and i bet we can get yo u closer Quote
CadillacBanshee Posted March 11, 2006 Author Report Posted March 11, 2006 My slides were backwards half the time i changed the needle setting. My shit is now officially hauling ass!!! Quote
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