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By HISUN Sector 750 EPS Failu
"Mrs. Smith" doesn't like how loud our Sector 750 is. On a HISUN forum someone said the same thing about his 750. I haven't given it much thought because I've been more focused on stuff that has broken.
So, I used my decibel meter to check ours out. 4000 RPM, Low gear, under 20 MPH . . . . 97 decibels. That's above most ordinances, even state boat noise limits.
AI Overview Ninety-seven (97) decibels is considered very loud and dangerous to hearing with prolonged exposure, roughly equivalent to a newspaper press, a loud nightclub, or a snowmobile. At this level, damage can occur after just 30 minutes, necessitating hearing protection -
By riggy400
Bought a Coleman 400 UTV (pretty much a Hisun), the previous owner tried to replace the timing chain, couldn't time it properly and sold it to me. After some hours I figured out how the timing all is supposed to be set (I think/hope) and as I am reassembling, I noticed that the water pump gear was awfully hard to spin. I held the gear with my hand and spun off the impeller. I checked the bearing, spins great no obvious issues noticed other than this o-ring which seems to be out of place? When I remove this o-ring and reassemble the WP, it seems to spin nice and easy without a drag. I looked up the service manual (although very inaccurate info there often) and don't see this o-ring present. Am I missing something here or what? Any input?
This is not easy to access once the engine is back in the machine so would like to avoid having to deal with this if it becomes a problem.
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By Stubbsmobile
Hey yall,
Helping a friend out. he purchased a 2020 massimo buck 400 utv. has about 100 hours on it. after starting the engine, shifter in low, it does fine. when shifted to high gear, most of the time it acts like its not in gear completely, and it pops out and grinds bad. when you can get it in high gear, it acts like something is binding and it wont hardley roll before it jumps out of gear and makes that grinding noise. almost like trying to dr4ive a standard transmission car and start off in 3rd or 4th gear.
I have been on this site for several hours now, and totally understand the overall feeling about massimo utv. I can only imagine trying to find transmission parts when other members cant even find a fuel filter, lol.
A new transmission is (part#47516) $1159.99 plus tax and freight.
anyone have any other ideas or suggestions on what is causing the noise in high gear and not wanting to move?
Thanks ,
Chris
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By Razorair
New to this site I just got this 2014 Coleman UTV 700 High Temp Light on from the start cold I haven't really ohm checked the sensors although they are all new but I have done lots of work on the engine I've replace the head gasket, wet clutch rebuilt the primary clutch and cleaned the secondary clutch with a new belt plus a bunch of other stuff I just can't figure out this high temp light that is on at start and has never been off. I have bled the air multiple times. I also wired a switch for the fan to run it most of the time due to others that have suggested this. It is running good the radiator is getting warm but really haven't ran it enough to make sure it's not getting too hot but I just want the light to work as it's suppose to. I would really like to install a true temp gauge if anybody could help with doing that.
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By Tommy2bits
Just bought a brand new 2022 (NOS) Sector E1 with Lithium upgrade. (Single 135ah/200amp continuous). I've climbed a moderate hill in my woods probably 20 times since buying it. Today It won't climb it unless I am in Low. In High it almost makes it and then completely dies and I have to roll back down the hill. In Mid range (Max Range) I can't get 2 feet up the hill and the power output in only 100 amps, I have climbed this hill in every speed before many times. I put it on the trailer tonight and it wouldn't even get on the dang trailer in mid range. Torque is gone. That being said, when I am just cruising around in Midrange, it runs absolutely perfect with plenty of power. The only thing I did was charge it up, that is all. I charged to 100% using the charger that came with the battery. Before you think the BMS is shutting down due to overcharge protection, remember I am going UP hill so there is no regeneration AND I have done it before at 100% charge AND another big problem is that after 1 mile it is already down to 85% so it's not over charging and why is the battery draining so fast when I got 27 miles before. Battery output is fine in Low it pulls 200 amp up the hill just like normal so that doesn't point to the battery being the issue. All the individual cells on the battery are in line, so there is no dead cell either. I am tech savvy but to toward electric motors and I tried to cover all my bases. Please don't tell me basics like torque is reduced in High and Mid. The only thing I can think of is that I smelled something when I took my first drive today and I thought it was the Ebrake dragging but there was the correct amount of play in the cable and I jacked up the rear wheels and they spin freely. maybe something burned out in the motor, I do not knowm still runs great, we'll see if I have any trouble on the hills at the lake house this weekend. Maybe this is "Normal" and the settings were off before and was giving equal torque for whatever reason instead of 50% in Mid and 70% in High like the manual says....
For reference....this is it not even able to get on the trailer in mid range
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