2012 rtv1100 won’t go over 15mph

[Gwilkrrs]

New to me- picking up today actually
Owner stated machine won’t go over 15 mph
I see threads saying to check pressures but I don’t know how or what this means

 

[aurthuritis]

Pretty common. Before you go wrenching lets get a baseline. What size tires and tire pressures. What kind of service history? How many hours and miles? When you get it home and immediately change the fluid in the hst and the transmission with super udt and oem filters. Save the filters in a clean ziplock for later examination incase you have problems. Get that done and report back please.

 

[Gwilkrrs]

Ok- first thing the title says 2010 not 2012
Oil and filter look good, filter is a Napa
Air filter looks good
3 other filters look old and are kabota
1491 hours
25x10x12 tires - not sure on pressures

Will be doing a service soon

 

[aurthuritis]

Great thanks. Low hour machine. Tire size is stock so thats good. Tire pressure can affect speed so check them at 20 psi rear and 18 psi front. Find a nice flat level hard place and put your machine on it in neutral and try to push it back and forth or jack it up and turn wheels by hand in neutral to confirm brakes aren't dragging common on this model. Check that and let me know. There's more

 

[aurthuritis]

Yes change the hst and transmission oils to kubota super udt and use kubota filters. There's three to change.

 

[aurthuritis]

S

Post in thread 'Worn Valve Plates Causing Slow Traveling Speed?'

Jan 6, 2014

Adams Repair would be the one to tell you what is worn.

My machines were all too new to have any real wear.

Forward and reverse relief pressures have been set as high as 4,000 according to another Kubota mechanic I communicated with and he said no problems.

• SpudHauler

 

[Gwilkrrs]

I can push the machine forwards or backwards in N
Tire pressure is what you stated-
(was 18 all around)

 

[aurthuritis]

Ok the brakes aren't seized. Now change fluid and filters to eliminate any clogged filters or other restrictions. Use kubota filters adding aftermarket we can't confirm a faulty filter.

 

[71sschevelle]

check muffler for clogged spark arrestor.

 

[Bigorangething]

@71sschevelle is right. all of the black stuff in this photo isn't soot, its corn! It cost me about 5 MPH until it totally burned out. I had a 2011 1100 that was new to me with similar symptoms. Change all of the fluids and filters. if hydro is dirty you might have to change filers again.

 

[aurthuritis]

So mice had plugged the muffler with corn?

 

[Bigorangething]

Yep, not completely, but it made a difference. Had them completely fill an airbox on a truck too!

 

[Gwilkrrs]

Sorry was out of commission for a bit

Plan on checking spark screen.

Daughter says it runs 20-25 on the flat in high. Going up hills is where it drops down to 10 (empty)

For a service is Kubota UDT fluid mandatory (hearing mixed)
Cause it is super expensive at 7.5 gallons

 

[vince1230]

I heard mandatory

 

[Bigorangething]

ALWAYS Kubota fluids and yes, you will lose speed up hill. 10-15 is pretty typical. Less if you're loaded.

 

[aurthuritis]

Mine will maintain 25 loaded on uphill! Now? What do you call a hill?