Deezil Posted July 11, 2016 Report Share Posted July 11, 2016 Newer to me banshee, Pipes, silencers, no airbox and K&N's on the factory carbs, reed spacer, tors removed. Other than that, to my knowledge there isnt anything done.. Currently I have 27.5 pilots, and Im up to 400 on the main jets, am I getting anywhere? Today's run. With 360 jets. Thoughts? And now 400 jets Quote Link to comment Share on other sites More sharing options...
Deezil Posted July 12, 2016 Author Report Share Posted July 12, 2016 Looking for help. What do I try? Been tinkering on this thing for too long Sent from my iPhone using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
sheerider11 Posted July 12, 2016 Report Share Posted July 12, 2016 A leak down test Quote Link to comment Share on other sites More sharing options...
Larry's Shee Posted July 12, 2016 Report Share Posted July 12, 2016 While fucking around with it inspect the boots closely. Cracks might only leak while engine is running. Only thing that leakdown test can't detect is issue with carb or leaking exhaust. Quote Link to comment Share on other sites More sharing options...
Deezil Posted July 12, 2016 Author Report Share Posted July 12, 2016 Ill round up parts to leakdown, do the plugs look that lean? Thanks Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted July 18, 2016 Report Share Posted July 18, 2016 Pulls clean? Quote Link to comment Share on other sites More sharing options...
Deezil Posted July 18, 2016 Author Report Share Posted July 18, 2016 (edited) Pulls clean? Yeah, pulls great all the way through 6th Still rounding up parts and whatnot for the pressure test.. pita Edited July 18, 2016 by Deezil Quote Link to comment Share on other sites More sharing options...
Deezil Posted July 27, 2016 Author Report Share Posted July 27, 2016 Leak down passed. Doesn't drop at all. Video I made What else can I do? https://youtu.be/xUhNDvT2cgE Sent from my iPad using Tapatalk Quote Link to comment Share on other sites More sharing options...
trickedcarbine Posted July 27, 2016 Report Share Posted July 27, 2016 Weird. Plugs look like they're washing clean on the base, but the electrode is crunchy lookin'. Quote Link to comment Share on other sites More sharing options...
jbooker82 Posted July 27, 2016 Report Share Posted July 27, 2016 Id try it again with a different gauge. Trying to get a 60 psi tire gauge to accurately read and notice a 5 lb drop at the bottom end of the scale isn't going to work real well. Something like a 0-15 psi gauge. 1 Quote Link to comment Share on other sites More sharing options...
Deezil Posted July 27, 2016 Author Report Share Posted July 27, 2016 Ill try to find another guage and retest. ive tried a identical pressure gauge like you have, their not accurate enough at that low PSI. with all the little leaks I saw in the video it should of showed at the least almost 1psi drop.... you had MINOR leaks around the cross over tube, exhaust plugs and both fittings at the carbs. I will say though, USUALLY when an air leak is present it would show on 1 plug, and usually the spark plugs don't come out identical (which his seems to be) Have you checked to see what needles are in the carbs and where they are set? Have you tried running the bike with a smaller main jet I think with the mods you have people usually end up in the 320 range? (someone correct me if im wrong here) Your jetting could be spot on from idle to 3/4 throttle and overly rich to the point it washes out the plug on a wot run. how long of a wot run did you do? have you done any decent wot runs on a smaller main? I got the quad with 260 main jets, Ive been slowly going up more and more to 320, then made a big jump to 360 and 400 to try to make it over rich. My WOT run setup is warm it up, take out plugs and install new ones, start it, pull onto road and floor it 1-6 and shut it off, pull the plugs then post the pics on the forum. Been struggling with it for a couple months now. Quote Link to comment Share on other sites More sharing options...
Deezil Posted July 28, 2016 Author Report Share Posted July 28, 2016 Oh, ok. So I should chop these plugs then. I left a tiny bit of air pressure in it for 24hrs, and it had pressure left, after 24 hours. I screwed my racing pressure gauge in it. I'll test that tomorrow. Sent from my iPad using Tapatalk 1 Quote Link to comment Share on other sites More sharing options...
ClaudeMachining Posted July 28, 2016 Report Share Posted July 28, 2016 https://m.youtube.com/watch?v=_6FBfAQ-NDE Each time I scroll threads and saw the title of this one, I have that fucking song poping in my head... so enjoy it fuckers!!!! Lol! Quote Link to comment Share on other sites More sharing options...
Deezil Posted July 28, 2016 Author Report Share Posted July 28, 2016 Ok Thanks. Ill chop one plug for fun to see what it looks like, and Ill do the second leakdown on my lunch break Quote Link to comment Share on other sites More sharing options...
Deezil Posted July 28, 2016 Author Report Share Posted July 28, 2016 Another leakdown done with an accurate guage for checking race car slicks, shows each pound increments, after 20 minutes the guage has barely moved at all... This thing is solid.. Ill chop one of the plugs next. 1 Quote Link to comment Share on other sites More sharing options...
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