2004limited Posted December 28, 2009 Report Posted December 28, 2009 i got a 2004 banshee this is the third time i have had this problem. when i bought the bike it would wun good intermititantly but bad most of the time and was spitting gas out of the right pipe cost 270 to have the carbs rebuilt. ran great for a month. put fmf fatty and power core pro flow kit and k&n jetted myself ran great for about 2 months went on vaccation and had to rejet the bike for elevation and temp diff ran good 2 days then just quit. no acceleration or power. revs good. tore everthing from the heads back off cleaned nothing wrong disconected the tors. finaly took out the choke and tube cleaned then ran great. this time rode for about an hour then started to loose top end checked plugs good. pulled choke and cleaned ran good put gas for another ride and no power at all . pulled both carbs and cleaned everything put together and no power. loaded up and brought it home. took off the trailer and cracked on it first gear ripped good, then second gear on all bog just wondering what the problem could be the carb has been rebuilt every year since new its starting to get expensive Quote
volcrano Posted December 28, 2009 Report Posted December 28, 2009 i got a 2004 banshee this is the third time i have had this problem. when i bought the bike it would wun good intermititantly but bad most of the time and was spitting gas out of the right pipe cost 270 to have the carbs rebuilt. ran great for a month. put fmf fatty and power core pro flow kit and k&n jetted myself ran great for about 2 months went on vaccation and had to rejet the bike for elevation and temp diff ran good 2 days then just quit. no acceleration or power. revs good. tore everthing from the heads back off cleaned nothing wrong disconected the tors. finaly took out the choke and tube cleaned then ran great. this time rode for about an hour then started to loose top end checked plugs good. pulled choke and cleaned ran good put gas for another ride and no power at all . pulled both carbs and cleaned everything put together and no power. loaded up and brought it home. took off the trailer and cracked on it first gear ripped good, then second gear on all bog just wondering what the problem could be the carb has been rebuilt every year since new its starting to get expensive why do u keep cleaning the carbs?sounds like a deeper problem.it sounds like it needs a top end!check ur compreesion before u keep trying to jet it,ur just chasing ur tail.get a compression tester-heat the bike to operating temp and shut it off.put the guage in the spark plug hole and kick it with throttle wide open until the guage stops climbing.u should have no less than 100 psi. in each cyl.if ur under its time for pistons or u have a compression leak as in head gasket,o-rings in head,base gaskets.if u have good compression do leakdown and look for other issues,vaccuum leak or whatever..also-ouch on 270 to rebuild just ur carbs?????that hurts me!!!!! Quote
Crazyatvspazz Posted December 28, 2009 Report Posted December 28, 2009 why do u keep cleaning the carbs?sounds like a deeper problem.it sounds like it needs a top end!check ur compreesion before u keep trying to jet it,ur just chasing ur tail.get a compression tester-heat the bike to operating temp and shut it off.put the guage in the spark plug hole and kick it with throttle wide open until the guage stops climbing.u should have no less than 100 psi. in each cyl.if ur under its time for pistons or u have a compression leak as in head gasket,o-rings in head,base gaskets.if u have good compression do leakdown and look for other issues,vaccuum leak or whatever..also-ouch on 270 to rebuild just ur carbs?????that hurts me!!!!! X2!!! Quote
GNR101 Posted December 28, 2009 Report Posted December 28, 2009 is your tank full of dirt? and cleaning your carbs... are you doing a top job pulling them all apart or just spraying some carb cleaner over them? and as said b4 check your compression and intake boots for leaks Quote
2004limited Posted December 28, 2009 Author Report Posted December 28, 2009 (edited) i just did my compresion test drove it down the street ran great for the first minute then shit on me finished letting it warm up i got 110 in both cylenders im trying to read around on how to do the leak down test any sugestions and for the carb cleaning just pulling the bowl and jet spraying cleaner into the jet holes how would you do it if i pulled the caps Edited December 28, 2009 by 2004limited Quote
2004limited Posted December 29, 2009 Author Report Posted December 29, 2009 k just did my leak down test 6 psi timed out for 6 min still at 5.5 10 min at 5 psi no clue what to do 1 Quote
AKheathen Posted December 29, 2009 Report Posted December 29, 2009 well, what happens when you put new plugs in and what to the old plugs look like? also, what is your elevation, what was the elevation, does the tester have a valve in the tip and as long as the spark plug? have you checked that you are getting good blue spark? Quote
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