fuel leak - Honda ATV Forum
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post #1 of 21 (permalink) Old 09-16-2012, 02:06 PM Thread Starter
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fuel leak

I have a 2005 Honda Rancher 350 2x4, It has a fuel leak coming out of the carb, at the bottom of the carb is a nipple with no hose to it and whenever the fuel is on the fuel runs right out of that nipple. I could not find a loose hose laying around so I am wondering if it is suppose to have a cap on it or the hose is missing, if someone could tell me if there is a hose where it would run to or anything on it. Thanks
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post #2 of 21 (permalink) Old 09-17-2012, 07:28 PM
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Try and plug that hole and if your 4 wheeler runs with the hole plugged up there was never a hose that was supposed to be there
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post #3 of 21 (permalink) Old 09-17-2012, 07:31 PM
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That is your barb drain and yes there should have been a hose there running past the engine to the ground. They usually have a one way check valve on them.

If it is leaking out of there you have an issue with your needle and seat. Its sticking and your bowl on the carb is filling over full. That is why its leaking. You are going to have to pull the carb and clean it and possibly replace the needle and seat.

1990 Honda Fourtrax 300 Dubbed "The Blue Bull"


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post #4 of 21 (permalink) Old 09-17-2012, 07:32 PM
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That is your carb drain and yes there should have been a hose there running past the engine to the ground. They usually have a one way check valve on them.

If it is leaking out of there you have an issue with your needle and seat. Its sticking and your bowl on the carb is filling over full. That is why its leaking. You are going to have to pull the carb and clean it and possibly replace the needle and seat.

1990 Honda Fourtrax 300 Dubbed "The Blue Bull"


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post #5 of 21 (permalink) Old 09-17-2012, 08:23 PM
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Quote:
Originally Posted by Trips View Post
That is your barb drain and yes there should have been a hose there running past the engine to the ground. They usually have a one way check valve on them.

If it is leaking out of there you have an issue with your needle and seat. Its sticking and your bowl on the carb is filling over full. That is why its leaking. You are going to have to pull the carb and clean it and possibly replace the needle and seat.
exactly!!!
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post #6 of 21 (permalink) Old 09-17-2012, 09:36 PM
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Welcome from the Volunteer state. What Trips said.

2004 Rincon
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post #7 of 21 (permalink) Old 09-17-2012, 10:02 PM
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Yup to Trips. Usually if you just clean the cone shaped rubber on the top of the needle valve and blow any dirt or sand out of the seat that will solve the problem.

1996 Foreman 400 FW, 2007 420FM Rancher,2008 420FM Rancher,2009 Foreman 500 FPM
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post #8 of 21 (permalink) Old 09-18-2012, 08:32 PM Thread Starter
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Alright, thanks guys, when I get home next I am going to do that
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post #9 of 21 (permalink) Old 09-18-2012, 08:46 PM
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If it is the drain nipple,tightening the screw in the side of the bowl should stop it,if it doesn't,then the oring is shot on the drain screw,and needs replacing along with a length of fuel hose small enough to be forced onto that nipple,and ran down below the bottom of the engine to the rear(look around n see if the old ones back there hanging around still)...If the carbs needle is sticking then usually the drip is pretty fast..try tapping on the carb body with a screwdriver a few times to see if you can shock the float loose,and stop the drip after you check the drain screw for tightness..A small zip tie,or piece of fine wire applied tightly around the hose will suffice to hold it in place...

FREE REPAIR MANUALS >>http://www.hondaatvforums.net/forums...all-years.html 1986-1992 trx350 parts for sale>>http://www.hondaatvforums.net/forums/atv-parts-sale/29225-complete-part-out-1986-fourtrax-350-a.html
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post #10 of 21 (permalink) Old 09-20-2012, 04:49 PM Thread Starter
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Thank ya, I got a carb rebuild kit from rockymountain atv and me and my buddy are going to rebuild the carb tomorrow evening and do a once over on it. The thing is 7 years old and has sat for the last 5 at least. When I start this I will look at all of the parts to make sure it is all good.
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