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need carb help with '95 EX500 please...update: fixed
my left carb started dumping a ton of fuel into the cylinder on the way home yesterday. here's what happened. about 5 miles into the ride at a stoplight, the idle drops about 400 rpm and the idle gets rough. i smell gas. i rev it a bit, nothing changes. i take off with much less power until about 4k rpm then everything seems normal and the bike rides fine. get to the next stop sign and everything seems fine until about 10-15 seconds after i stop then the idle drops again, and i smell gas again. this repeats all the way home. its fine if its revving, fine until the throttle is closed, then the idle goes to heck, i smell gas and the exhaust wreaks of raw gas on the left side.
so i took the carbs off, removed the plugs and checked that the pilot screws was 1 3/4 turns out. they were. when i took the carbs off, there was gas in the front (slide side) of the carb in a little puddle. took the float bowls off and checked the operation of the float needle valve because i thought it wasn't closing all the way and the float bowl was flooding, (which still seems like the likely cause) but they seemed to operate freely and correctly, floats appear to be fine with no leaks and set to the correct level. there were no other visible signs of wear or problems. i just synched the carbs but this didn't start until about 50 miles later. it ran great until this rich condition presented itself.
so what's my next step? its just dumping a ton of gas into the cylinder which is just blowing out the tailpipe unburned and running horribly. i still think that the float bowl is flooding. perhaps i should disassemble the needle valve and clean it? HELP! i need my bike! thanks all!
Bobby
my left carb started dumping a ton of fuel into the cylinder on the way home yesterday. here's what happened. about 5 miles into the ride at a stoplight, the idle drops about 400 rpm and the idle gets rough. i smell gas. i rev it a bit, nothing changes. i take off with much less power until about 4k rpm then everything seems normal and the bike rides fine. get to the next stop sign and everything seems fine until about 10-15 seconds after i stop then the idle drops again, and i smell gas again. this repeats all the way home. its fine if its revving, fine until the throttle is closed, then the idle goes to heck, i smell gas and the exhaust wreaks of raw gas on the left side.
so i took the carbs off, removed the plugs and checked that the pilot screws was 1 3/4 turns out. they were. when i took the carbs off, there was gas in the front (slide side) of the carb in a little puddle. took the float bowls off and checked the operation of the float needle valve because i thought it wasn't closing all the way and the float bowl was flooding, (which still seems like the likely cause) but they seemed to operate freely and correctly, floats appear to be fine with no leaks and set to the correct level. there were no other visible signs of wear or problems. i just synched the carbs but this didn't start until about 50 miles later. it ran great until this rich condition presented itself.
so what's my next step? its just dumping a ton of gas into the cylinder which is just blowing out the tailpipe unburned and running horribly. i still think that the float bowl is flooding. perhaps i should disassemble the needle valve and clean it? HELP! i need my bike! thanks all!
Bobby