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By Michael Gilbee
I have a Coleman 550 utv, no power to the dash or to the fuse box. I have checked and tried swapping main fuse relay with a known good one, I have continuity tested the wires to the key switch and fuse box power in and ground, and tried swapping with a known good key switch. Any ideas, or similar issues yall have ran into? Could use any help I can get, thanks.
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By Aaron Miracle
It’s done this previously but it came back without a bolt turned. Im having trouble finding the power steering system in the hisun owner’s manual or the Coleman. Any ideas?
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By Everyday Medic
I have a 2012 Hisun 700 EFI, marketed in Canada back when I bought it under the Name "Power Max Rough Rider" I have had my issues over the years that always seem to come back to poor "economical wiring"
My issue is that on occasion I have a sudden and temporary loss of power. This occurs at two diffrent times. Both after the machine is good and warm.
1. Cruising down the road, the power will suddenly drop to nothing, I can press the throttle and habe a slight raise in RPM* but not high enough to engage clutches. This will last about 10 to 15 second, and of course right before I have rolled to a total stop, she come back on line.
2. Lower speed work, I plow with this machine. I will say come to a stop and the machine will not idle but drop down to well below idle and then die, upon restart the RPM does not come up to idle speed, but choke around 500 then die again. This occurs a few times, then we are back to normal.
*the RPM guage drops to zero even with the engine still running (digital) then when the unit returns to normal it also works.
I still have full electrical at all times. I have a few modifications on the unit. I run a double deep cycle/starting marine batteries in the winter, as I plow, this means I use the wench alot. I have an LED light bar, and added a hydraulic pump to turn the plow. Lastly a small heater core with a small fan to keep me warm.
I will also note that the speedometer has not functioned in a bit, just reads 00 I figure this another "economical" wiring issue, that I really don't care about, unless it's leading to another issue.
I have had to rewire a few things, like a few connectors. Replaced some wires that have shorted, or oddly have become damaged. I have changed a few relays, and the 4x4 switch, and servo. Any extra ls added have been added on a seprate isolated circuits thru its own fuse box.
I have a very mild thought it may be a throttle postion sensor.
Hoping someone can lead some insight, or at least point me where to begin investigating.
I would love this fixed, I have to drive down the road to get into the back section of the property where I shot.
Thank you.
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By Hisun .500
So my hisun 500 is tore up and all the wiring is wasted i was wondering can i pull out all the wiring and just put in the. Basics .please help
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By Jon C
Hello to anyone who reads this. I am Jon and I own J&M Outdoor Power, a very small, small engine repair shop. I was approached by Coleman about 6 months ago to become one of their Warranty Centers.
I recently received 3 different UT400's and a UT500 all with similar issues. These units range from 2 months to 2 years old. Customers state that the unit(s) was/were running fine, then heard a pop and a loss of power, two would no longer start. The two that would run would not achieve normal operating speed (around 20mph I would say) without redlining the RPMs. I quickly found that the Valve lash on each unit had become too large on some(both intake and exhaust) and too tight on one(just intake).
After setting the gaps to .005(I found multiple different people suggesting bigger and smaller gaps, but no definitive Coleman Spec number yet) every unit starts, runs, and achieves top speed without issue.
I don't know how many others have come across these issues, and I wanted to get something out on the web for others in the same predicament.
Please let me know if you have had similar issues.
Edit: I realize that this will not be a fix all solution for this issue, as the oil level and condition should be verified before moving to the valves. Many times improper oil conditions will cause valve lash to change. These units all have good oil and proper oil changes.
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