Yamaha Temporary Loss of Power

[mtoma]

So I was out for a nice ride this weekend and the rhino was working great until I started back up and out of the canyon we had dropped into. It was a nice cool day and it ran fine on the way in which was mostly down hill.

I had it loaded down pretty good with 2 adults and 2 kids plus all the other stuff you'd normally take on a day trip.

On a couple of the steep climbs out it would start bogging down like it was starving for fuel at just under 1/2 throttle. It would still run ok as long as you didn't push the petal more than 1/2 way down.

On both occasions it did this, I would shut if off for a few seconds and start it back up and it would be fine for a while. Seemed like a computer issue and once it would reset it would be ok for a bit.

Anyone experience this or have any thoughts?

 

[Cisco Kid]

Check you fuel filter, DD has same type of problem and once we change the filter it is good to go, some time we need to change it more offen ;-)

 

[mtoma]

Fuel Pump or bad Ground? More likely a bad fuel pump

Papa, does turning it off then on again help to reset the pump?
Seems strange that each of the 2 times it did this when I shut it off then restarted it was fine for a while.

I'll look into the pump.

 

[mtoma]

Check you fuel filter, DD has same type of problem and once we change the filter it is good to go, some time we need to change it more offen ;-)

I didn't think the 700's had a fuel filter, just a screen.

 

[mtoma]

Thanks papa, I think I'll pull the pump assembly tonight and have a look.
Only about 600 miles on her but oh well, s**t happens.

 

[mtoma]

Look at a shop manual and see what your Fuel Pressure should be and hook up a pressure gauge and see what is going on? But a visual never hurt anything? How about warranty? With only 600 miles it should be covered?

Will do with the shop manual.

I would think a pressure problem would throw an error code on the display but maybe not.

I doubt they'd cover this under warranty as I am the second owner and have done engine mods to it so I'm pretty sure they'd void that part of the warranty.

Thanks for your help.

 

[mtoma]

I 'm looking into how to test the pump next.