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Gas is coming out of overflow tube have gas in oil

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I have a 98 honda fourtrax 300 4x4 and it is leaking oil out of the overflow tube

please check oil level sound like to much oil in crankcase.darin oil and check for gas from faulted carb leak while not running.This would fill crank case with gas and cause oil over flow

May 22, 2014 | Motorcycles

1 Answer

I just bought a 03 honda 450 and oil comes out of a tube under the motor when started...why is this?Also how do you check engine oil and transmission oil?

Is this a CRF450 single-cylinder off-road bike? If so:

If it's coming out an overflow, it may be overfull. Not sure on that--haven't seen it before.

To check engine/trans, drain, refill with (670cc w/o filter change; 690cc with filter change), start engine, shut off engine, check sight glass on side of engine. If it's low, add oil and repeat start/shutoff/sight glass routine until it's full. Engine and trans share oil.

If it's still pumping oil out the overflow after you're sure it has the correct amount in it, be sure it's oil and not coolant, battery acid, or gasoline (there is a gas overflow tube on the carb for when the float sticks).

Jul 24, 2012 | 2003 Honda CRF 450 R

1 Answer

Where is the orifice tube on a dodge intrepid 1999

what is an orifice tube? gas fill tube? oil dipstick tube? trans dipstick tube? tailpipe?radiator coolant overflow tube ? tube top? vacuum tube ?

Jun 28, 2011 | Dodge Intrepid Cars & Trucks

1 Answer

Why would the air cleaner compartment fill up with gasoline when running? the float isnt sticking,it starts fine,its a 230 2wheel drive yamaha beartracker atv.

if the floats were stuck it would come out of the overflow tubes. but if the air box is filling up with a gas/oil substance it could be a few things. can you tell if it is comming out from the crankcase through the overflow its a crank seal.. what you want to do is a leakdown test on it.. but if you think its just gas try the pilot jet that may be clogged.. hope that I could help get back to me

May 18, 2010 | Motorcycles

1 Answer

One of the overflow tubes on the right side of my bike came off.

hi,i dont know this bike personally,2 of the hoses will come from the carbs and generally the other is a breather from the battery

Apr 29, 2010 | 1995 Yamaha YZF 750 R

1 Answer

Gas overflowing in carb. flowing out of the bottom tube

you might find that the needle isnt in properly check that first

Oct 24, 2009 | Yamaha YZ 125 Motorcycles

1 Answer

1986 suzuki savage

check the oil level again. trace the tube to see what it really is. make sure it isnt coming from the oil filter. had 1 that was the wrong size and was like 2mm off in length. screwed down tight but had a persistent leak. good luck. if it is the oil overflow, I used a very clean shop towel and wicked out excess by dipping it in the filler hole.

Jul 07, 2009 | 2008 Yamaha Crux

2 Answers

Oil and gas mixture coming out by exhaust

first off make sure the oil gas mixture is correct and mixed very well.... have the carb cleaned out very well or even rebuilt, jetted and adjusted...

Jul 06, 2009 | 2003 Yamaha YZ 125

1 Answer

Fuel leaking out the overflow tube...

The overflow tube coming out behind the swingarm? If that is where it is coming from sounds like your float in one of the carbs could be stuck.

Mar 29, 2009 | 1997 Suzuki TL 1000 S

1 Answer

Gas Leak via Overflow

The usual culprit is a blocked vent tube. Verify it's open. The usual indicator is either a pressure release when you open the gas cap, or a vacuum "sucking" noise when opening it first thing in the morning. On a carb equipped bike, the carb overflow lines will leak, but in a fuel injected bike like yours, it'll be out the overflow vent. The next time it begins leaking, open the gas cap. It should stop immediately as pressure inside is released. Good luck.

Nov 20, 2008 | 2005 Ducati Monster 1000S

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