bigfatcat250 Posted July 24, 2018 Report Share Posted July 24, 2018 i have a 97 banshee just rebuilt the top end to standard bore w a new cylinder stock port. previous setup was 22cc domes now running 20cc domes in the cool head. other mods are t5's and open intake. mixing cam2 50/50 with 93 @ 32:1. br8es plugs. 1000 ft above sea level. current jetting is 192 main 58 pilot and dek needle set 1 position in from blunt end. when i start the bike it just revs itself to the moon until i shut it off. whats a good place to start jetting wise? or could i have possibly done something wrong during the rebuild. ive built a cr250 so i have a basic idea of how it should be done. thank you Quote Link to comment Share on other sites More sharing options...
bigfatcat250 Posted July 24, 2018 Author Report Share Posted July 24, 2018 also carb is a 34mm pwk Quote Link to comment Share on other sites More sharing options...
christoph.tamz Posted July 24, 2018 Report Share Posted July 24, 2018 i have a 97 banshee just rebuilt the top end to standard bore w a new cylinder stock port. previous setup was 22cc domes now running 20cc domes in the cool head. other mods are t5's and open intake. mixing cam2 50/50 with 93 @ 32:1. br8es plugs. 1000 ft above sea level. current jetting is 192 main 58 pilot and dek needle set 1 position in from blunt end. when i start the bike it just revs itself to the moon until i shut it off. whats a good place to start jetting wise? or could i have possibly done something wrong during the rebuild. ive built a cr250 so i have a basic idea of how it should be done. thank you It sounds like your throttle cable is stuck. Did you delete the tors? Some times it gets hung up on the inlet where it comes into the top of the carb, cable routing, idle screw. It all sounds simple but double checkSent from my SM-N920V using Tapatalk Quote Link to comment Share on other sites More sharing options...
christoph.tamz Posted July 24, 2018 Report Share Posted July 24, 2018 Might be to short of a cable and it's pulling. Take off the filter and see what's going on. It sounds like your throttle cable is stuck. Did you delete the tors? Some times it gets hung up on the inlet where it comes into the top of the carb, cable routing, idle screw. It all sounds simple but double checkSent from my SM-N920V using TapatalkSent from my SM-N920V using Tapatalk Quote Link to comment Share on other sites More sharing options...
ZillaFreak Posted July 24, 2018 Report Share Posted July 24, 2018 Air leak a 192 main on a single carb is pretty big. Quote Link to comment Share on other sites More sharing options...
bigfatcat250 Posted July 24, 2018 Author Report Share Posted July 24, 2018 (edited) where should i start checking for a leak and how do you do that? i did put new o rings in the cool head but im sure they were seated. just picked up a 180 main and 48 pilot Edited July 24, 2018 by bigfatcat250 Quote Link to comment Share on other sites More sharing options...
bigfatcat250 Posted July 24, 2018 Author Report Share Posted July 24, 2018 49 minutes ago, ZillaFreak said: Air leak a 192 main on a single carb is pretty big. where should i start checking for a leak and how do you do that? i did put new o rings in the cool head but im sure they were seated. just picked up a 180 main and 48 pilot Quote Link to comment Share on other sites More sharing options...
christoph.tamz Posted July 24, 2018 Report Share Posted July 24, 2018 Pressure test the motor, then do a leak down. As far as jetting, you need to get that idle down then plug chop.Sent from my SM-N920V using Tapatalk Quote Link to comment Share on other sites More sharing options...
bigfatcat250 Posted July 25, 2018 Author Report Share Posted July 25, 2018 found the culprit. busted reed gasket. had a spare so i replaced that. now it wont even start. this carb looks like it's seen better days maybe time for a new one Pressure test the motor, then do a leak down. As far as jetting, you need to get that idle down then plug chop.Sent from my SM-N920V using TapatalkSent from my SM-G930V using Tapatalk Quote Link to comment Share on other sites More sharing options...
ZillaFreak Posted July 25, 2018 Report Share Posted July 25, 2018 Pretty sure you jetting is just way too big. Also, stop mixing fuels, pick one and use it. When you mix, you never mix exactly the same ratio each time and this will effect things. Quote Link to comment Share on other sites More sharing options...
bigfatcat250 Posted July 25, 2018 Author Report Share Posted July 25, 2018 i think my float is set wrong its now just dumping fuel out of the overflow hoses. ive set it before about level with the bowl and it keeps moving down. any suggestions? Pretty sure you jetting is just way too big. Also, stop mixing fuels, pick one and use it. When you mix, you never mix exactly the same ratio each time and this will effect things.Sent from my SM-G930V using Tapatalk Quote Link to comment Share on other sites More sharing options...
ZillaFreak Posted July 25, 2018 Report Share Posted July 25, 2018 What do you mean it just keeps moving down? Quote Link to comment Share on other sites More sharing options...
bigfatcat250 Posted July 25, 2018 Author Report Share Posted July 25, 2018 What do you mean it just keeps moving down?if I'm holding the carburetor upside down the float is pointed up at a 45 degree angle shouldn't it be level with the bowl? I've adjusted it before and it keeps working its way back to that positionSent from my SM-G930V using Tapatalk Quote Link to comment Share on other sites More sharing options...
ZillaFreak Posted July 25, 2018 Report Share Posted July 25, 2018 https://youtu.be/zIkJcIM5heA Quote Link to comment Share on other sites More sharing options...
bigfatcat250 Posted July 25, 2018 Author Report Share Posted July 25, 2018 set the float to where it should be. fuel is dumping out of the overflow hoses now. im about to can this setup. any recommendations on a different carb Sent from my SM-G930V using Tapatalk Quote Link to comment Share on other sites More sharing options...
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