Greywoolf
New member
Learn anything from the service mgr?
Mystery, RTV900 not starting
- Thread starter mike69440
- Start date
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mike69440
Elite Member
- Joined
- Jun 2, 2005
- Messages
- 3,288
- Location
- Central NH (God's Country)
- Tractor
- 2005 L39 Kubota, 2020 Polaris 570 Sportsman, 2006 RTV 900, 2019 RTV1100C, 1997 Komatsu PC75UU2E w/ Thumb & Blade, 2013 Mahindra Max28XL Shuttle plus many attachments
Not really, just added Howes treatment and waited for warm day.
But my Kumatsu PC75 UU2 won't fire up, even after the temp went to + 40 F? It always started before in cold weather?
timswi
Elite Member
- Joined
- Nov 18, 2008
- Messages
- 4,997
- Location
- Beaver County Pa
- Tractor
- Kubota BX23 TLB, Kubota RTV1100, Kubota Z724 & Polaris RZR 900 Trail
I use off road diesel in my shop heater...For the first time I've noticed slight gelling in the plastic cans at singe digit temps..Never experienced this in 20 years of using this stuff...Wonder if there is something up with diesel in general this year...Personally I really don't know.
Fortunatly my BX and RTV have not been affected....Yet....They both stay in a climate controlled garage, so that might be why.
Fortunatly my BX and RTV have not been affected....Yet....They both stay in a climate controlled garage, so that might be why.
nybirdman
Super Member
Sure sounds like a fuel problem,try Powersevice 911.Summer blend fuel?
TashasDad
New member
I am having the exact same problem. Back to the dealer is the next step. Have you come up with a solution yet?
BlkBrdsNThmprs
New member
Hello, I have searched this site extensively and cannot find anything else pertaining to this same problem you posted earlier. Wondering if you ever figured out why your Kubota RTV900 smoked and raced after starting on a cold day. I am having a similar problem starting mine. Temps have been around 0 to -10F but parked in out of the wind. I run the glow plugs for 15-20 seconds. Then I start the engine which races for 20 seconds with heavy black smoke and no throttle control. Then it slows and dies. It will not restart immediately. After waiting 5 minutes, run the glow plugs for 15-20 seconds, then engine starts and runs fine. Any help is appreciated.
BlkBrdsNThmprs
New member
No additives but using straight #1. No sign of gelling or freezing. It ran fine with #1 in it until recently when temp got below 0 F. When it starts and races, you cannot turn it off. It continues to race even with the key off for about 1 minute. Then it slows down and dies. Five minutes later, you can restart it and it runs fine. My thought is that it is sucking oil past the rings which is what the engine is running on until it gets enough heat in it to seal up the rings. Is this a valid theory or common problem? Or is there somewhere else in the engine that it can be getting oil (breather tube or vent). Any other ideas? Thanks for helping!
buickanddeere
Super Member
Gelled summer fuel and/or frozen condensation . Diesel in small light duty applications have more disadvantages that advantages .