2020 Kubota RTV-XG850 Gas in the oil / Backfire, loss of power?
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By downseast
Hi everyone
Recently purchased a 2020 T-Boss 410 in what appears to be good condition
First time with this machine – I also have a diesel Kawasaki Mule which so far seems a better machine
It didn’t start and idle well particularly from cold when I got it and sudden take off ( now solved with new clutch parts ) was all or nothing !
I have replaced the idle valve, throttle position sensor, had the injector professionally checked ( ok) and also the pressure sensor this is a fuel injection engine, also plug and lead etc!
It still doesn’t run well and when starting I have to hold revs for a while as it wont idle but stall, thereafter its better and I have rebooted the ecu which has improved it
When I go to start it clicks as if there is a hydraulic lock and wont return after two or three attempts it then does turn over and start bit I need to give it a bit of throttle to start – is this normal ?
Is there adjustment for the air idle valve ?
The engine seems rough and with vibration compared to other engines I have been used to but some say this is normal?
I haven’t changed the Lambda sensor yet, anyone know how much difference this might make ( I have a new Bosch universal to fit )
Any advice very much appreciated, thanks
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By Homeowner A
Have a Coleman UTV 400 that cranks, runs, drives well until it gets warm and is put under load. Light throttle or full throttle it doesn't bog, but it will cut out mid throttle if you move the pedal quicker than it seems to like for example when you're getting ready to go up a hill, but if you immediately floor it, it will do just fine and not cut out. It's random if and when it's going to do it, but is consistent in that it happens only when hot/full operating temperature. I've replaced the injector twice, same with the spark plug and tried different heat ranges (NGK 7,8 and 8 iridium), replaced the fuel pump, adjusted the valves, checked air filter which is like new, changed the oil, replaced the fuel filter. No check engine light. I don't have a code reader for this. Initially I thought it might have a head or head gasket issue as when I got it, the oil was over full, very runny like water milky and it was smoking. I've changed the oil since then twice to clear and clean everything out, and it seems to be good. Coolant stays the same level and so does oil with no changes in consistency or need for adding more. Had I think 7-9 miles when I got it and now has about 77. What should I try or consider next?
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By Homeowner A
Is there a better performing higher volume injector than what they come with or what is the best replacement for the original?
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By Homeowner A
Is there a diagram of all of the grease zerks for a Coleman UT 400? Mine squeaks like crazy and want to try and remedy it.
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By The Road Hound
Hi,
New to the forum.
Came here looking for some experienced UTV users who can enlighten me about which brand should I pick for my very first UTV or SXS.
I'm between 3 brands and 3 models:
*Kawasaki MULE PRO-FXR 1000.
*Yamaha wolverine rmax2.
*Can am Commander XTP.
The use I'm willing to give it is mostly to go to the range with my wife, load steel targets and all our shooting gear, we shoot a lot, rifles, Shotguns and Handguns for practice, training and competition. (Range is about 10 miles from home)
But also I want something that I can take to the trails and have fun on dirt, mud, rocks, puddles or creeks.
Any objective information will be appreciated, specially which is more reliable and durable.
Thank you and happy 4th of July.
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