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By jugliner
I have a fuel injected UT400 that will start and idle, but surges and sputters at higher speed. It has been sitting for 2-3 months and was fine when parked in garage. I assumed it was a fuel/air problem and pulled the throttle body and cleaned it up. I've ended up replacing the injector, IAC valve, MAF Temp Pressure Sensor, and fuel filter. I've also checked the spark plug, Still surging. I reset the ECU after every component swap.
I plan to pull the throttle body again and look evrything over for any visible leaks, etc.
Any suggestions would be appreciated on next steps. The problem developing after sitting makes me think it should be something simple, but I'm stumped. BTW the fuel was fresh and treated with Stabil.
Thanks.
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By 2017 Massimo Warrior
ABSOLUTELY THE WORST EXPERIENCE EVER!!!!!
I purchased a Massimo Motors Warrior 700 UTV directly through the company. This unit was listed for sale on Ebay as a company demo with only 77 miles. Prior to bidding on the item, I messaged them through EBay and asked if there was "anything wrong with it and if everything worked properly". I was assured in writing that everything on the UTV was operational AND that it would be inspected before shipping. I also called the number that was in the EBay listing to verify that everything was operational and to make sure the item could be delivered to my land in Missouri. I made it VERY clear that I was not interested in bidding on the item if those two things were not acceptable. I was assured over the phone that everything was operational, that it would be inspected prior to shipping and that delivery to my land in Missouri was perfectly fine.
It was not delivered to the address agreed to by their contact listed in the EBay listing. And when it was received, there were multiple items that were not operational. Items that were defective when it arrived include a headlight, a backup light, both horns, the horn wiring and the parking brake. They refused to even supply me with replacements for all the defective parts. In response to the BBB, Dave said it was sold without a warrantee. The listing very clearly stated 180 day warrantee for parts.
In addition, the windshield that was clearly shown on many photos on the listing was not delivered with the UTV. That's correct...THEY STOLE THE WINDSHIELD before shipping the unit to me. The first representative from Massimo Motors told me multiple times that “the company will make things right for me”. He did supply me with a couple parts; which I installed myself. Later, he told me that he is no longer with the company. Dave, the new contact never offered any reasonable solution to any of the remaining issues.
His solution to STEALING THE WINDSHIELD was for me to fabricate one myself.
Unbelievable experience. See files attached.
Hope this helps others from making a BIG MISTAKE.
See photos attached for proof.
If this help, please let my “buddy” at Massimo know why you aren’t buying one. Here’s his info:
[email protected]
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By Jamesshoop1
This was happening to me regularly with the original battery pack, I would drive a few yards and power cut to the motor, no error code, dash works, lights etc, just no drive. Brake lights not on so I don’t think it’s a switch thing. Sometimes it would go back to normal after a few day sitting in the barn. I ended up changing to lithium ion battery 100amp 48v and the problem completely went away for two months so I figured it was something worth the old battteries. Now it’s doing the same thing again, I’ve removed every main electrical connection, cleaned it good, and put it back together. Battery is at100 percent and good voltage. What is interesting is it doesn’t matter how much power I’m drawing, if I’m just creeping along in low or flooring it in high it stops after the same amount of time, about 7 seconds. If I let go of the acceleration right before the 7 seconds I can keep driving like that indefinitely but obviously that’s pretty annoying. Or if I switch immediately to reverse I can back up and go back to F without cycling the key. Has anyone else run into this? It really seems like a safety switch issue to me but unsure what else to check.
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By mrpro
Have a Coleman UT400 and the headlights are terrible. What should I consider to make it so I can see well when driving in the dark?
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By CraigL
I have a 2016 Landmaster 670. It will stop running after 15-20 of driving. Restarts easily but still has a hard time staying running after that. New carburetor, fuel pump, fuel filter, and spark plugs. Anybody else have this problem?
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