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By Paul L
When I am driving at 30 to 40 mph on the highway, the display will change from H (high) to R (reverse). It does not actually shift into reverse, it seems to shift into neutral and starts losing speed and the gas pedal has no effect. After the rpm/speed drops for 5 seconds or so, it changes back to H and runs fine for another minute or so. You have to try to drive it at less than 5000 rpm or so, to try and keep this from happening. Any ideas on what the problem might be? It only happens at the higher speeds.
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By ToughLuck
I have a 2021 Massimo MXU 1000. Last winter the front drive shaft sheared off inside the motor and it was cheaper to buy a new motor than to take it apart in order to remove the front drive shaft that was broken inside the case…
Now it is running rich, seems to maybe be geared too high, does not accelerate well once you hit about 28mph. I’ve replaced the O2 sensor. MAF is next (I accidentally ordered the wrong one, but when I removed the old one you can clearly smell fuel).
I’m not a motorhead but I can turn a wrench. Any ideas how to get this motor optimized? The motor has about 300 miles on it. I broke it in as recommended in the manual.
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By Joe Breaux
Got a 2017 Massimo MSU500 UTV with thermostat malfunction.. hot light comes on in 4-5 minutes but radiator is ice cold... where exactly is it? The hose neck on the head has nothing in it. I was told it was down by oil drain plug.. only thing I see is water pump.. Is in inside pump housing? Cant find any exploded diagrams that show it.. how to I remove it? any help would be appreciated
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By Alien10
I'm thinking of buying a snow blade for my Coleman Outfitter 550 (Hisun with Coleman stickers).
Has anyone purchased a snow blade that can offer the make and model they bought and any comments, pros cons etc.?
Not 100% sure I'm going to buy, as the selection of blades for this model seems a bit thin on line.
Thoughts and comments welcomed.
Thanks in advance.
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By A P
Hi
I have a 2022 hisun sector eps 550. 30amp fuse is blown for eps. Checked the motor and it’s fine. Opened up the controller and found a bad diode. Dealer wanted 500$ for the controller. Just posting this in case it helps someone. I couldn’t read numbers from the old one so just took a guess and replaced it with a 100v 3amp diode.
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