Mjv420 Posted March 3, 2009 Report Posted March 3, 2009 Hey guys and gals, installed my new pipes today and I ran into a small problem after everything got installed. I bumped the mains and pilots on a set of stock carbs up to 340mains and 30pilots for starters. The bike revs very high at idle throttle position, I have checked for leaks around the intake boots and found nothing. This bike ran great a week and a half ago before I put the pipes on and bumped the jetting today. Would this same symptom occur if the pilot is to lean? Running open air filters and t5's at ~500ft asl in 30-50 degree temps. On a side note, the slides are synched and not hung and the tors is disconnected. Quote
black sunshine Posted March 3, 2009 Report Posted March 3, 2009 You adjust the idle? How many turns out are you? Quote
Mjv420 Posted March 3, 2009 Author Report Posted March 3, 2009 The idle is set correctly and carbs and synched correctly. This weekend I think I might buy the materials to do a leakdown test, i've troubleshooted as much as I could today with what I had available. Quote
Overboost Posted March 3, 2009 Report Posted March 3, 2009 30 pilot soungs mega huge on just those mods. check your slides, when I changed my jets, my slides would stick just a crack from the bottom, would seat when you smacked em down. I took them out, cleaned the bores and no problems since. Quote
Mjv420 Posted March 3, 2009 Author Report Posted March 3, 2009 30 pilot soungs mega huge on just those mods. check your slides, when I changed my jets, my slides would stick just a crack from the bottom, would seat when you smacked em down. I took them out, cleaned the bores and no problems since. The hq jetting faq says to go up 1 pilot size for pipes and 1 pilot size for open air filters (if nessecary), was going off that for a starting point. The slides move freely. It might be a seal somewhere on the bottom half of the motor, besides the crank bearing seal what other seals would be a possibility? Quote
vulvafan537240 Posted March 4, 2009 Report Posted March 4, 2009 im running 30 pilots with similar mods Quote
Mjv420 Posted March 4, 2009 Author Report Posted March 4, 2009 I pulled the intakes today and found the person put intake gaskets on the reed --> intake boot mating surfaces. The gaskets didn't look all that bad from the naked eye but im going to go pick up a fresh set for the cylinder intake to reed side. The reeds on the flywheel side looked good, no cracks in them. Im going to pick up one set of reeds while im there just because I havent pulled the clutch side intake. Im really hoping a have an air leak on the intake side rather than a crank seal, because if I have to split the cases im going to replace the crank with a new one, which in turn is going to cost me more Anyways, we'll see what happens. Thanks for the replys. Quote
Mjv420 Posted March 5, 2009 Author Report Posted March 5, 2009 Problem solved, was leaking air on the intake. Cleaned the intake on the cylinder, reedcage and intake boot, replaced the intake gasket. Quote
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