Number of posts : 449 Registration date : 2009-11-08 Age : 58 Location : Georgia
Subject: Fuel Pump Question Sun Apr 11, 2010 2:45 pm
I have the 2006 660 Rhino. The fuel pump went out a few months back and I replaced it with a new stock one. Now that one seems to have quit working too. can anyone give me the name of a good after market fuel pump I dont want to spend money on another stock one and have it go out again.
Thanks for any suggestions
wvyankee2 SSXSRider Member
Number of posts : 10321 Registration date : 2008-01-22 Age : 64 Location : Mohave County, Arizona
Agree with Yank. The stock Yamaha pump is a very reliable piece. Very uncommon for it to go bad, especially twice. I'd do some digg'in. I would remove the tank and all lines, blow-out and try again. Check the pluse-line to the pump for clarity too......
Rhino X 2 SSXSRider Member
Number of posts : 449 Registration date : 2009-11-08 Age : 58 Location : Georgia
Ok I tested the pump like the service manual suggested and it looks like it is bad. I checked all the lines and found no cracks or clogges. But I kicked myself for what I did find. In the fuel system you have a roll over valve. When I rebuilt my rhino I installed it up side down causing the vent to stay closed, also I had installed a after market fuel cap ( with out a vent ). So I think that it completely closed off the system causing the 2 pumps to fail. I have a new pump from weller raceing ( Thanks Yank ) on the way should be here Friday and installed the stock fuel cap so we will see.
ridepate SSXSRider Staff
Number of posts : 6409 Registration date : 2009-04-23 Age : 64 Location : 1st join date- 1/22/2008- North Ga.
Roll over valve was definately a problem. Early Rhino's ( I think through 06 ) had the diaphragm in the pump made out of the wrong material. The gas made it weaken over time. Most of the time people would see a drop in wide open performance before a complete failure and replace them. I would say the rollover valve was definately your problem.
