Gas overflow problem
04-27-2006, 08:57 PM
#1
Registered User
Thread Starter
Join Date: Oct 2002
Location: Drrty Water, CT
Age: 49
Posts: 329
Gas overflow problem
just picked up a 99 400ex today. naturally the first thing i did was some wheelies. well, when i get up in the air, the gas is pěssing out of the overflow tube under the machine. i don't want that. how do i stop it? my buddy saw it, and it leaves a trail behind me.
i'm going to be stunting this thing quite heavily, so it's gotta be perfect. any ideas?
i'm going to be stunting this thing quite heavily, so it's gotta be perfect. any ideas?
04-28-2006, 03:40 PM
#4
Quad Ridin Ninja
Join Date: Nov 2005
Location: NC
Posts: 457
Re: Gas overflow problem
Originally Posted by KelOne333
just picked up a 99 400ex today. naturally the first thing i did was some wheelies. well, when i get up in the air, the gas is pěssing out of the overflow tube under the machine. i don't want that. how do i stop it? my buddy saw it, and it leaves a trail behind me.
i'm going to be stunting this thing quite heavily, so it's gotta be perfect. any ideas?
i'm going to be stunting this thing quite heavily, so it's gotta be perfect. any ideas?
put a screw or something in the end of the overflow tube????
04-28-2006, 04:41 PM
#5
CVBOYZ.COM
Join Date: Oct 2002
Location: Montgomery, Vermont
Age: 43
Posts: 3,995
Re: Gas overflow problem
Originally Posted by z400doawheelie
put a screw or something in the end of the overflow tube????
I think the only solution is to change carbs. Get one from a Z400...they work well and I think they pretty much mount right up.
I heard about adjusting the float, but some say it's not adjustable or won't work anyway.
04-28-2006, 04:58 PM
#6
Quad Ridin Ninja
Join Date: Nov 2005
Location: NC
Posts: 457
Re: Gas overflow problem
Originally Posted by PhearCVBz
Nope it will flood out then.
I think the only solution is to change carbs. Get one from a Z400...they work well and I think they pretty much mount right up.
I heard about adjusting the float, but some say it's not adjustable or won't work anyway.
I think the only solution is to change carbs. Get one from a Z400...they work well and I think they pretty much mount right up.
I heard about adjusting the float, but some say it's not adjustable or won't work anyway.
i thought that would have worked...guess the gas has to go somewhere though....
get a 6pack rack, and ziptie a gas can back there, run a tube to it, and when you run out of gas just fill it back up....and do it again...
05-01-2006, 10:46 AM
#10
CVBOYZ.COM
Join Date: Oct 2002
Location: Montgomery, Vermont
Age: 43
Posts: 3,995
Re: Gas overflow problem
Originally Posted by BIGfugginRED
mine's 02 and it only pisses at 12. but i don't really like bar tricks anyways. 
05-01-2006, 04:24 PM
#12
Quad Ridin Ninja
Join Date: Nov 2005
Location: NC
Posts: 457
Re: Gas overflow problem
Originally Posted by my300ex505
mine only does it like 10 to 12 but if im movin like 4th or 5th it realy doesnt do it
06-03-2006, 06:00 PM
#13
Re: Gas overflow problem
ok, so what is the solution to the problem?
i just got an asphalt driveway and don't want gas leaking on it
how do you guys secure bottles under there, any pics?
and how often do you have to empty it
or should i change my carb? i have a 300ex
i just got an asphalt driveway and don't want gas leaking on it
how do you guys secure bottles under there, any pics?
and how often do you have to empty it
or should i change my carb? i have a 300ex
06-03-2006, 06:50 PM
#14
Registered User
Join Date: Oct 2002
Location: Rochester, NY
Age: 44
Posts: 4,030
Re: Gas overflow problem
There is one solution...
Go to your local hardware store. Buy the same size tube that the gas comes out of. Make sure you have enough hose to snake under the gas tank towards the handlebars and back up to the breather tube on the gas cap. Attach a splitter to the gas cap tube. Attach the over flow hose to one side of the splitter and the breather tube to the other side. I would use about an inch of tube from the gas cap to the splitter.
So basically, you're dumping the over flow gas right back into the tank. However, if the over flow tube is kinked under the tank in any way... you'll flood the carb out. Good luck and let us know if you try this!
-Drew
Go to your local hardware store. Buy the same size tube that the gas comes out of. Make sure you have enough hose to snake under the gas tank towards the handlebars and back up to the breather tube on the gas cap. Attach a splitter to the gas cap tube. Attach the over flow hose to one side of the splitter and the breather tube to the other side. I would use about an inch of tube from the gas cap to the splitter.
So basically, you're dumping the over flow gas right back into the tank. However, if the over flow tube is kinked under the tank in any way... you'll flood the carb out. Good luck and let us know if you try this!
-Drew
06-03-2006, 11:15 PM
#15
Registered User
Join Date: Nov 2004
Location: Da Nati
Age: 57
Posts: 1,788
Re: Gas overflow problem
Let it pee.........Scrape and light it on fire :YEAH
I tried the catch bottle and it filled it up QUICK and as soon as it's full it floods out again if you don't pour it off
I also tried rotating the carb, and messin with the floats no luck.
I may try Drew's idia only thing i haven't tried yet. Only because i didn't think of it first.
I tried the catch bottle and it filled it up QUICK and as soon as it's full it floods out again if you don't pour it off
I also tried rotating the carb, and messin with the floats no luck.
I may try Drew's idia only thing i haven't tried yet. Only because i didn't think of it first.
06-05-2006, 11:18 AM
#17
Registered User
Join Date: Feb 2005
Location: clio, mi
Age: 48
Posts: 270
Re: Gas overflow problem
Originally Posted by -Drew-
There is one solution...
Go to your local hardware store. Buy the same size tube that the gas comes out of. Make sure you have enough hose to snake under the gas tank towards the handlebars and back up to the breather tube on the gas cap. Attach a splitter to the gas cap tube. Attach the over flow hose to one side of the splitter and the breather tube to the other side. I would use about an inch of tube from the gas cap to the splitter.
So basically, you're dumping the over flow gas right back into the tank. However, if the over flow tube is kinked under the tank in any way... you'll flood the carb out. Good luck and let us know if you try this!
-Drew
Go to your local hardware store. Buy the same size tube that the gas comes out of. Make sure you have enough hose to snake under the gas tank towards the handlebars and back up to the breather tube on the gas cap. Attach a splitter to the gas cap tube. Attach the over flow hose to one side of the splitter and the breather tube to the other side. I would use about an inch of tube from the gas cap to the splitter.
So basically, you're dumping the over flow gas right back into the tank. However, if the over flow tube is kinked under the tank in any way... you'll flood the carb out. Good luck and let us know if you try this!
-Drew
There's actually two lines on the carb that will **** gas- the line on the bottom and the line on the left side. If you hook one up and leave the other disconnected-it'll still ****. After I discovered that I teed them together and hooked the tee up to the line connected to the tank vent-it bogged and stalled after 1 50ft. wheelie. I thought the reason the gas wasn't returning to the tank was that the air in the tank had nowhere to go-so I added another vent to the gas cap but it didn't help.
Seems to me that the gas that comes out of the overflow tube doesn't have enough pressure to beat gravity
06-05-2006, 11:33 AM
#19
Registered User
Thread Starter
Join Date: Oct 2002
Location: Drrty Water, CT
Age: 49
Posts: 329
Re: Gas overflow problem
Originally Posted by KUTZ
Get a vacume carb. it uses intake vacume to move gas around in the carb that way no 
hav eyou done this? what kind of carb? from what machine? ANSWERS MAN! I NEED ANSWERS!
