2016 RZR difficult filling with fuel

[treeman77]

I have a RZR with 12 hours on it and have yet to be able to fill it up at the gas pump. The fuel always backs out the fill hole after half full. I have loosened the vent plug and even opened the fuel fill cap on the opposite side of boat. Maybe the vent hose has a kink???


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[skiguy]

I had a cantankerous Malibu like that. I had to hold the nozzle in the fill hole at a certain angle and hold the lever half way to reduce flow rate into the tank. It's not a solution but may help. It does sound like a vent issue but I couldn't tell you how to fix - especially since you're removing the other cap. Maybe look for a check valve in the vent/fill lines? If so, it may be a bad valve.


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[treeman77]

The problem is not the vent. I blew into the tank and air escaped through the vent hole. It may be because the way it sits on the trailer. I put some fuel in while in the water at marina pump and didn't have any problems. In the water the bow is higher and on trailer the boat is pretty level. Not sure if that has anything to do with it.


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[UNSTUCK]

Sounds like a lot of fuling in only 12 hours. Maybe it's just full.

[Germaine Marine]

^ lol

[treeman77]

Not hardly smartass. When you can only put in 1/3 of a tank at a time you spend a lot of time refueling.


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[Lamest]

My 08 Ve liked to burp on me while trying to fill at a land pump. The nose sits slightly below level on my hitch. The 16 z3 has yet to fight back at the pump, with the same truck, stinger, etc. Looks like it's sitting (slightly) nose down when I fill. The 16 Z3 tank has vent feeders in 3 or 4 places if I remember from last time I had the floor up. With the 08 I always had to slow down the filling when I started hearing gurgling in the fill line. I had a love hate relationship with exhaust systems every time I filled up the 08 at that pump. I heard it explained that if the nose was high, and there was no vent at the front of the tank, that the bubble would accumulate and eventually "burp" back through the filling line. I could fill on both sides too, and kept the opposite filler open, so I was scratching my head when I took the splash. The last observation could be explained by check valves in the filler lines.

Not that it helps, but I know an employee that was stranded on a road trip with a Subaru on a road trip that refused to fill. Cited a tech bulletin when he called in stranded the next moring.

[BCRider]

My boat will burp on the trailer as well but only when near full. Same as you, I pop both gas caps to vent. I also only fill at half speed of what the pump can typically do. Holding the nozzle to the top of the fill spout you can usually see if it's going to come back at you or just start to stop randomly to let any air out. I find it burps when you stop. A couple weeks back I got gas all over my shirt and left arm when I wasn't looking....not the first time. I would definitely try and find a spot that you can be nose down at when filling.

[Stingreye]

new boats have a fancy environmental stuff on them compared to boats from a few years ago right? Charcoal cannisters etc? Maybe the cannister is full of fuel and is not letting the tank vent? I have no clue about how they work just making uneducated guesses.

[gman]

This problem has been going on for years and years and years. You have to listen to the fuel coming up the fill line and shut the nozzle off. Be careful you get to close you will get a gasoline shower. Also you may want to consider filling it slowly stopping a few times as you fill it up.

[JLG]

my 15 z3 fills fast so you most likely have something going on. Its a 16 so take to your dealer and let him figure it out. My older boats had to be on the slow notch at any pump to fill but this 15 I can run on full with no issues if using a good filling station that is.

[dom w. forte]

We had one do the same thing, and even though you could blow through the vent, when pulled the floor and checked it the vent hose was too long and not only kinked but drooped down into the bilge instead of a steady upward angle which would trap gas, when you blew through it would blow the gas back into the tank like it was clear.

[RZRindy]

Long Story Short, Bought a Brand New 2014 RZR 0 Hours 6 months ago that was in a Dealers Show room for 3 years . Had the exact same issue, first fill up it would not barely take a gallon and it would stop pump and overflow.

Due EPA regulation, Tige put Swing Check valve's inline on both fuel fill hoses, On mine they where located about 6 inches down from the fill port.

Yes, there is a thread about this, to move the check valve down the hose farther, but this will not solve the issue completely.
In another post a member had a great suggestion, to just open your other fuel cap. This would work great, but if you have the check valves, the swing flap will block the air from venting.


Easy Fix,

Take the check valve completely off and use a small set of long handled needle nose piers into the valve to squeeze the two tabs that hold the flap and spring into place. The flap and spring will come out very easy. Basically you now have a hose coupler. Reinstall the hollow check valve back in. Do this on both sides.

After this I could fill my tank much easier but could not fill full blast with gas pump, still had to be half squeeze on the handle, even then after 10 gallons or so I would have to stop and let the tank breath for a second, as it seem to pressurize just enough to stop the pump and the blow gas out all over the place. especially the closer it got to full tank. I though it was that stupid EPA vent device not letting out enough air. So I took it off and blew through it and it did not restrict air flow at all. Two potential reasons the vent is not venting properly, The vent is just not big enough to let the air out fast enough and the tank pressurizes. Its also likely that if trailering, when filling up, ground slope at the pump and the back of the boat is slightly higher, once the gas gets to a certaint level in the tank it blocks the vent causing tank to pressurize.(Vent is closer to the bow side of the tank)



When pumping gas, open the opposite fill cap, (the caps have a seal that prevent gas and air from escaping) By open the other cap, it creates a vent as big as the hose taking in gas, you can pump gas at full throttle with no issues of it blowing out at you.


My only disclaimer, I trailer my boat to the lake, so I never fill up on the water.

Yes EPA put these systems in place to prevent fuel going into the water, but the irony is that this would cause way more fuel to go into the water if you fill up on the lake.

Hope this helps anyone with this issue.

[TigeFamily]

Try having the nose of your boat pointed slightly down when you fill...and as others have said open the 2nd gas cap. This solved the issue for me completely

[tigemech]

Does it do it, when you fill on either side of the boat?