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View Full Version : Gas poring from over flow tube!


capecod400ex
02-06-2005, 07:07 PM
About three weeks ago i noticed after i got done riding my 400ex gas was poring out of the over flow tube. This only happends when the motor is off. The quad still runs fine with no hesitation or any thing else. what could this be???
nosliw
02-06-2005, 07:14 PM
your float might be stuck
capecod400ex
02-06-2005, 07:21 PM
how would I check that give it a little tap. btw i havent changed any thing in the carb in 2 years
nosliw
02-06-2005, 07:23 PM
yea i'd just take the carb off, take the float bowl off, make sure everything is moving freely and shoot it to hell with carb cleaner
gojk
02-06-2005, 11:07 PM
Mine did this, somehow I had a piece of grass stuck in the needle valve.
JUSTINcredible
02-07-2005, 01:55 PM
yeah take the carb apart and clean it and that should do it.
capecod400ex
11-13-2005, 08:10 PM
well i cleaned the carb and float bowl and it worked out for a long while no gas poreing out runing full power. Now today riding i lost all power at full throtle like my kill switch was off then if i let off the throtle it would come back then cut out again, gas was poreing from the over flow vent again then. under no load i could rev it to the limiter in neutrel but soon i went to take off it would like cut out. IDK what the deal is.
jwick07
11-14-2005, 08:56 AM
Sounds to me like you need to change the seet(sp, seat) and needle, and that the floats are out of adjustment. All of these are easy and cheap things to fix, just do a complete rebuild on the carb. Make sure that the choke is not comming open from worn out parts.
11-15-2005, 11:31 AM
that happend to me all i did is take a scrue driver and beat it and it stoped doing it
2004exrider
11-15-2005, 05:03 PM
im with him, needle and seat.

Jimmy
capecod400ex
11-17-2005, 01:52 PM
ok I forgot to mention its got a K&N jet kit and its been installed for years with no problems.
bwamos
11-17-2005, 02:29 PM
Originally posted by capecod400ex
ok I forgot to mention its got a K&N jet kit and its been installed for years with no problems.

FYI: they weren't talking about the Needle Jet. They are talking about the check valve needle and seat. It's what stops the fuel flow when the foat gets high enough.

Just smack the side of the bowl (installed don the quad, not opened up), with the plastic end of a screwdriver a few times. It should fix her. Or, pick up the back end and drop it a few times. If it starts doing it again right away, you'll want to inspect the float and check valve.