badboyzracing187 Posted July 8, 2014 Report Share Posted July 8, 2014 (edited) I need help with my banshee. Problem is it won't stay running on its own. Also at about 1/4 throttle it doesn't respond good. I recently did the top end and it's starts right away and runs excellent at 1/2 & full throttle. Any help would be appreciated. Thanks 97 banshee .20 wiseco pistons Trinity mx ported cylinder jugs Hot Rod crank (stock size) +4 advanced timing V force 4 reeds 310 main jets Needle clip middle position 25 pilot jets Carbs rebuilt Fmf sst pipes Unknown silencers just all chrome but are fmf Cool head with 20cc domes Elevation 3780 ft Any questions please let me know Edited July 8, 2014 by badboyzracing187 Quote Link to comment Share on other sites More sharing options...
badboyzracing187 Posted July 8, 2014 Author Report Share Posted July 8, 2014 (edited) I forgot to mention tors have been removed. Previous owner put the eliminator kit but no idle screws were installed. I'm assuming it doesn't need them since my friends banshee doesn't have the idle screws and it runs with no problems. Edited July 8, 2014 by badboyzracing187 Quote Link to comment Share on other sites More sharing options...
oldskool Posted July 8, 2014 Report Share Posted July 8, 2014 If tors were removed from carbs, you will need Idle screws. maybe clean carbs paying special attention to pilot circuit. are you running airbox with lid? Quote Link to comment Share on other sites More sharing options...
sheerider11 Posted July 8, 2014 Report Share Posted July 8, 2014 Won't stay running, dosent have idle screws. Are you seeing the connection? Pilots to small. Get a 30 between the pipes porting and vf4 you need 30s. Your probably lean on the bottom causing the bog. You may get away with a 27.5 with your elevation but a 30 is safe. Quote Link to comment Share on other sites More sharing options...
badboyzracing187 Posted July 8, 2014 Author Report Share Posted July 8, 2014 Thanks oldskool & sheerider11 for the response. I have a uni air filter with no lid. I also thought about putting 30 pilot jets. Should I mess around with needle as well or not. Maybe lower the clip one down to richen up a little Quote Link to comment Share on other sites More sharing options...
WINDYCITYJOHN400 Posted July 8, 2014 Report Share Posted July 8, 2014 One thing at a time. Your pilot was stock on a built motor. You need a 27.5 minimum More likely 30's Get slides sync'd and idle adjusted, then work on airscrew adjustments. Quote Link to comment Share on other sites More sharing options...
badboyzracing187 Posted July 8, 2014 Author Report Share Posted July 8, 2014 Thanks for the help. I'll do that and let u guys now the results. Quote Link to comment Share on other sites More sharing options...
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