Ssantoni73 Posted January 21, 2018 Report Share Posted January 21, 2018 I need help!! I just got my rebuilt banshee running it floods out of the overflow on the bowl, floods cylinders. I have spark, good compression and definitely have fuel. Cleaned carbs 3 times. Sometimes starts when it is cold. When it runs, it runs great and no issues until i shut it off it will sometimes start, just noticed a cylinder shut down until i messed with the petcock but have a new petcock on the way. Mods are dg fattys, fmf silencers, boyesen reeds, boost bottle, head was decked and have 2 k&n style air pods on the carbs. Has i think stock carbs and jets are 200 main 25 pilot and have needle clip on second spot up from the bottom and mix screw is at 3/4 turn out because that is where it ran best. Any help please! I have the bowls on the right carb and did check that the needles and floats are good. Quote Link to comment Share on other sites More sharing options...
JUSTWANNARACE Posted January 21, 2018 Report Share Posted January 21, 2018 Bad float height, bad float needle, o-ring around the needle seat is fucked.. ect.. Quote Link to comment Share on other sites More sharing options...
Larry's Shee Posted January 21, 2018 Report Share Posted January 21, 2018 Not related, but get rid of boost bottle. It WILL crack intake boots causing air leak. Just wanna covered everything else Quote Link to comment Share on other sites More sharing options...
camp0429 Posted January 21, 2018 Report Share Posted January 21, 2018 Are you sure your mains are 200? Quote Link to comment Share on other sites More sharing options...
Toybreaker Posted January 21, 2018 Report Share Posted January 21, 2018 11 hours ago, JUSTWANNARACE said: Bad float height, bad float needle, o-ring around the needle seat is fucked.. ect.. All of those... Most times the carbs dumping fuel is the needle and seat being worn out, like $8 for new ones.... Quote Link to comment Share on other sites More sharing options...
Ssantoni73 Posted January 23, 2018 Author Report Share Posted January 23, 2018 I adjusted the floats still floods when its not running and fuels on. But when i go to start it cold it gets no fuel so i put my hand over a carb to vacuum fuel then it will fire, but once it is warm it flood my cylinders and i have to clean my plugs then it fires right up... i bought 27.5 and 30 pilot jets is it worth throwing in a 27.5? My elevation is 207' in case that matters. I checked to make sure the floats closed by putting air on the fuel line and moving the floats up they seal then open when pulled down. Im sure its a 200 main would the main jet cause starting issues? And ill get rid of the boost bottle. I was going to get new intake boots and billet intake along with vforce4 reeds Quote Link to comment Share on other sites More sharing options...
special06shee Posted January 23, 2018 Report Share Posted January 23, 2018 If floats are adjusted PROPERLY, then it has to be the needle seat. Quote Link to comment Share on other sites More sharing options...
Toybreaker Posted January 23, 2018 Report Share Posted January 23, 2018 (edited) https://www.rockymountainatvmc.com/p/930/59507/All-Balls-Carburetor-Repair-Kit?v=2005-YAMAHA-BANSHEE-350 buy this and go through your carbs... or do some of your own research and buy just the needle and seat. Edited January 24, 2018 by Toybreaker fat finger fix Quote Link to comment Share on other sites More sharing options...
camp0429 Posted January 24, 2018 Report Share Posted January 24, 2018 11 hours ago, Ssantoni73 said: I adjusted the floats still floods when its not running and fuels on. But when i go to start it cold it gets no fuel so i put my hand over a carb to vacuum fuel then it will fire, but once it is warm it flood my cylinders and i have to clean my plugs then it fires right up... i bought 27.5 and 30 pilot jets is it worth throwing in a 27.5? My elevation is 207' in case that matters. I checked to make sure the floats closed by putting air on the fuel line and moving the floats up they seal then open when pulled down. Im sure its a 200 main would the main jet cause starting issues? And ill get rid of the boost bottle. I was going to get new intake boots and billet intake along with vforce4 reeds No, your mains are not going to cause the issue your currently having, what I was getting at before is a 200 main is way too lean, even more so with pipes and pods. Quote Link to comment Share on other sites More sharing options...
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