By Wild child 911
I have a 2018 model Hisun 450 EFI UTV. I have done over 6000 trouble free kilometers. About 4 weeks ago i felt that utv was not performing like it should. Done a compression test and found to be low. Replaced rings as they were worn. I drive in a very dusty environment. The problem of low power is still there. I have checked cam timing, valve clearances, compression up to 9.5 bar, done leak down test and valves are seating, stripped and cleaned fuel pump, removed and cleaned throttle body, checked for leaks on throttle body manifold, replaced spark plug, tested stator coil, tested hv coil, checked all electrical connections, checked injector. UTV starts easily and idles for 5 seconds and cuts out. When utv starts, it will rev up the first time and then start to miss as if it goes into a limp mode. If i lift my foot of the accelerator utv will idle for 2 seconds and then die. It starts immediately again. Would the air flow/ air pressure sensor or exhaust gas(lambda) sensor cause this. I cannot test them as dont know the correct values. Any suggestions will be highly appreciated.
I had been wanting to install power steering on my T4 for years so I went to the salvage yard last weekend and bought a complete column (minus airbag) out of a 2009 Nissan Versa for $125 with the ECU.
It was a fairly simple install. The long shaft that fits to the Joyner steering rack actually fit perfectly into the Nissan column. Had to weld up a U joint on the Nissan column to make it a straight shaft and fab up one simple bracket. Connect power and ground plus a switched 12v and now I can steer with one hand!
I recently bought a used Kubota RTV900 with a plow attachment to take care of a long, steep driveway this winter. I think it’s a 2006 and it has about 460 hours on it. The previous owner told me when I bought it that it needed an oil change but I know nothing else about how well it was maintained over the years. While going through the items in the maintenance schedule I discovered a problem with the coolant system. The coolant reserve tank was completely empty so I filled it and soon after noticed a spot of antifreeze on my garage floor. I had never noticed a leak before. I took the protective panel under the radiator off the bottom of the RTV and could see that the radiator itself, the drain valve, and all hoses and connections were dry and tight as far as the hose going into the engine block. I then took off the next protective panel that is right under the forward part of the engine. The engine-facing side of this plate was covered with a mess of oily debris that had to be scraped off and the engine itself was pretty dirty also. I cleaned things up with some paper towels and ran the engine to see if I could spot any leaks. After running the engine for only a few minutes, I saw a drop of coolant on the side of the crankcase right behind the starter motor. I wiped it dry, started the engine again, and the drop re-appeared after a few minutes. I was expecting to find that maybe the water pump was leaking, but I don’t see how that would cause the coolant to appear so far back on the side of the engine block. I can’t see anything else that might spray coolant onto this area. If the cylinder block actually has a hole in it I would expect I would see a lot more problems than just a slow leak of coolant. I am fairly handy but as I’m sure you can tell I’m new to engine work so I thought I’d see if anyone could help me diagnose this problem. Thanks.
I am posting my challenges with replacement tires so others do not go down the same path .
I was looking for some DOT rated 10 ply tires for a Kubota RTV 1100 getting a Boss V-plow installed on it to get a weight rating of UTV + Plow + payload.
I thought the GBC Motorsports Kanati Mongrel Radial Tire (25x10R-12) was just what was needed.
Ordered them in - got them mounted professionally - attempted a balance, received a call from the service center requesting a visit to see for myself why they stopped the install.
Picked up the machine and its unsafe to operate.
The amount of lift and drop is extreme.
We lifted the machine and rotated each tire while mounted and got readings of 75% of tread fairly consistent and round 25% drops in almost 1/2" to more than 1/2".
We attempted to use the tire index yellow dots in line with valve stem and opposite valve stem - no significant improvement. GBC will not or cannot give indexing information.
Working thru the return process now but not holding my breath - Dealer and Manufacture both state since they are mounted they cannot be returned. I dont know how without mounting i would find the defects.
So from my perspective stay away from teh GBC Mongrels on the Kubota RTV's
If you do buy them don't expect them to stand behind their product. You can expect the hassle of mounting, un-mounting, re-mounting, attempting a balance for a tire that turns at slow speeds. Expect they will want video's of all 4 corners, and than expect that it will take you two weeks to even get noticed.....
Don't expect your dealer can do much more for you as GBC controls the process so I have been told.
So spend a little more money and buy a brand you have heard of.