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post #1 of 9 (permalink) Old 04-28-2019, 10:40 AM Thread Starter
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Fuel Overflow

Picked up my new foreman yesterday. Stopped and filled it up on way home. If I shake the bike a little I will get gas run out of what looks like an over flow hose from the top of the tank to a fitting on the frame tube, It will drip a little down in the very bottom of the frame pan. is this normal? I filled it to just inside the filler screen. Did I overfill it?
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post #2 of 9 (permalink) Old 04-28-2019, 10:55 AM
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That may be an overflow, but also a drain line for the float bowl. Check the tightness of the drain screw at the bottom of the bowl. Do not overtighten, as the carb metal is pretty soft, and over tightening can cause leaks itself. Which of course sounds like your problem.

Perhaps your float bowl level is set just a bit high, which would be noted as a tendency for the quad to stall out from an overly rich mixture (usually when the engine is hot) and even flooding out. Check for black smoke on acceleration. If the quad is brand new, take it back to the dealer and have them reset the float bowl level. If not, get a shop manual and reset it yourself. Not too difficult a job, but I will not go into it here, as having the procedure in front of you helps get it right the first time. Following detailed instructions on a forum can have unsatisfactory results, as the advisor can sometimes forget a step, or leave out important info.

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post #3 of 9 (permalink) Old 04-28-2019, 11:21 AM Thread Starter
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This is a 2019. It is fuel injected. This hose comes off the very top of the tank out of a big round plastic piece and runs all the way down to where it connects to the frame tubing. About 7" below this is an opening in the frame where the gas drips a little when I shake the bike. When I filled it up I had gas in the neck. Maybe too much.
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post #4 of 9 (permalink) Old 04-28-2019, 12:21 PM
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Originally Posted by Woodsruner View Post
That may be an overflow, but also a drain line for the float bowl. Check the tightness of the drain screw at the bottom of the bowl. Do not overtighten, as the carb metal is pretty soft, and over tightening can cause leaks itself. Which of course sounds like your problem.

Perhaps your float bowl level is set just a bit high, which would be noted as a tendency for the quad to stall out from an overly rich mixture (usually when the engine is hot) and even flooding out. Check for black smoke on acceleration. If the quad is brand new, take it back to the dealer and have them reset the float bowl level. If not, get a shop manual and reset it yourself. Not too difficult a job, but I will not go into it here, as having the procedure in front of you helps get it right the first time. Following detailed instructions on a forum can have unsatisfactory results, as the advisor can sometimes forget a step, or leave out important info.
as the OP said, its fuel injected, no float bowl, second, most carb's if not all !, are not adjustable on the float's, all carbs on honda atvs have plastic floats, they are not adjustable. maybe you should practice what you preach before you give advise ? :-).

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post #5 of 9 (permalink) Old 04-28-2019, 12:24 PM
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This is a 2019. It is fuel injected. This hose comes off the very top of the tank out of a big round plastic piece and runs all the way down to where it connects to the frame tubing. About 7" below this is an opening in the frame where the gas drips a little when I shake the bike. When I filled it up I had gas in the neck. Maybe too much.
if this fuel line is anything like the lines they put on trx420's coming off in front of the top of the tank ?, this is a over flow/back flush from the fuel pump. this is all I can think of ?. worse case, maybe take it back to dealership, and let them look at it ?, do not mess with anything that can void your warranty !.

'89 trx350D foreman 4x4...'85 vf700c magna, '03 trx450fm foreman 4x4 , 2015 Yamaha waverunner fx cruiser ho, '08 vt750c2 shadow spirit
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post #6 of 9 (permalink) Old 04-28-2019, 12:35 PM Thread Starter
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This is a 2019. It is fuel injected. This hose comes off the very top of the tank out of a big round plastic piece and runs all the way down to where it connects to the frame tubing. About 7" below this is an opening in the frame where the gas drips a little when I shake the bike. When I filled it up I had gas in the neck. Maybe too much.
if this fuel line is anything like the lines they put on trx420's coming off in front of the top of the tank ?, this is a over flow/back flush from the fuel pump. this is all I can think of ?. worse case, maybe take it back to dealership, and let them look at it ?, do not mess with anything that can void your warranty !.
Thanks Shadetree. I took some gas out of the tank and ran rode it about 15 mins. Parked it and it's not dripping anymore. I really think I just overfilled it. If it does it again I will take it to dealer. Thanks for your reply.
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post #7 of 9 (permalink) Old 04-28-2019, 02:24 PM
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I think it is the tank overflow and you overfilled the tank.

Overfilled the tank on my motorcycle one day and the driveway was a little steep. Fuel spilled fuel all over the road when I pointed er down the drive

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post #8 of 9 (permalink) Old 04-28-2019, 02:39 PM
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Originally Posted by wqueb View Post
This is a 2019. It is fuel injected. This hose comes off the very top of the tank out of a big round plastic piece and runs all the way down to where it connects to the frame tubing. About 7" below this is an opening in the frame where the gas drips a little when I shake the bike. When I filled it up I had gas in the neck. Maybe too much.
if this fuel line is anything like the lines they put on trx420's coming off in front of the top of the tank ?, this is a over flow/back flush from the fuel pump. this is all I can think of ?. worse case, maybe take it back to dealership, and let them look at it ?, do not mess with anything that can void your warranty !.
Thanks Shadetree. I took some gas out of the tank and ran rode it about 15 mins. Parked it and it's not dripping anymore. I really think I just overfilled it. If it does it again I will take it to dealer. Thanks for your reply.
yvw, glad I could help :-).

'89 trx350D foreman 4x4...'85 vf700c magna, '03 trx450fm foreman 4x4 , 2015 Yamaha waverunner fx cruiser ho, '08 vt750c2 shadow spirit
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post #9 of 9 (permalink) Old 04-30-2019, 09:05 AM
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I over filled mine once. Mine is a 2015 rubicon fuel injection. Don’t worry about it. Just fill it up to within about a inch from the neck and ride it.
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