Bobby Banshee Posted November 19, 2007 Report Posted November 19, 2007 OK fellows, I've tried everything I Know but still running rich on bottom end. I'm currently running the stock carbs, pilot-25, air screw 3 turns out, needle on 3rd clip position and 320 mains. I'm running a K&N filter in a air box with a K&N air filter box lid. The machine still bogs at low end with lid, with filter lid and lid removed all together. The middle and top end are good. Heres a list of mods: 4 Mil vito crank, bored 80 over, cool head with 19cc domes(190psi), port and polished trail port by Kevin Herr, delta 3 reeds, aluminum intake with built in cross over tube, pro motion twist throttle, +4 timing plate. The delta reeds are right up against the back of the engine(intake), then the aluminum intake with built in tubes, then the carbs. Do I need to put in spacers between the engine(intake) and the reeds so the gas will have time to burn. Would this cause a bog at low end. Thanks in advance. Quote
Coupelx Posted November 19, 2007 Report Posted November 19, 2007 OK fellows, I've tried everything I Know but still running rich on bottom end. I'm currently running the stock carbs, pilot-25, air screw 3 turns out, needle on 3rd clip position and 320 mains. I'm running a K&N filter in a air box with a K&N air filter box lid. The machine still bogs at low end with lid, with filter lid and lid removed all together. The middle and top end are good. Heres a list of mods: 4 Mil vito crank, bored 80 over, cool head with 19cc domes(190psi), port and polished trail port by Kevin Herr, delta 3 reeds, aluminum intake with built in cross over tube, pro motion twist throttle, +4 timing plate. The delta reeds are right up against the back of the engine(intake), then the aluminum intake with built in tubes, then the carbs. Do I need to put in spacers between the engine(intake) and the reeds so the gas will have time to burn. Would this cause a bog at low end. Thanks in advance. have you tried droping the needle down a notch? thats a hell of alot of compression too! The gas does not burn in the intake. Quote
Bobby Banshee Posted November 19, 2007 Author Report Posted November 19, 2007 have you tried droping the needle down a notch? thats a hell of alot of compression too! The gas does not burn in the intake. Ya i dropped the needle to the 4th notch and it ran really rich at mid throttle Quote
Coupelx Posted November 19, 2007 Report Posted November 19, 2007 Ya i dropped the needle to the 4th notch and it ran really rich at mid throttle are you sure you moved the needle down? you need to move the clip up a notch which will drop the needle down. Quote
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