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By Eman85
I have been searching and can't find much info on these units. Pretty surprising as every other thing I own I find a lot of info on. Researching for tech info and such it's like no one owns any of these yet I see them everywhere.
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By gridlock
After three years, my Sector completely died. Something caused the hot wire under the seat from the charger to disintegrate, so the batteries weren't being charged. The batteries weren't charging 100% anymore, so decided to convert to lithium.
As most others have done, I went with 4-48v batteries in parallel, as I believe that will be plenty of amp-hours for my needs, but can always add more if needed. I went with LiTime wired CAN batteries and mounted their digital gauge on the dash above the current one, which fit perfectly. I didn't think the existing battery brackets worked well for the new batteries, so made my own out of aluminum L rails, which makes it much more secure (and saves a few more ounces :)). Since I wired them in a 'balanced' configuration, I had to make all new cables from 0/1 gauge wire and 8mm posts. I updated the DeltaQ charger to profile 233. Cleaned everything up (I must have vacuumed 20 pounds of dirt!), put it all together and... wham!
So far, it definitely is better than with the original AGM batteries. Sustains speed better going up hills, and seems to have plenty of reserve current. The difference in weight with 4 LiPo vs 8 AGM batteries surely doesn't hurt!
Thanks to everyone on this forum, but special shoutout to GNFO who was a big help.
A few questions:
In the 'any tips' thread, EVSupport mentioned reprogramming the Sevcon to reflect the new discharge curve of the lithium cells, but I didn't see any more info about that or how to do that. Is there any more info about that?
Have folks replaced the onboard 12v battery, and if so, with lithium? I'm not sure why there is a 12v battery; why didn't they just step down the current of the 48v system to provide power to accessories?
Is there a recommendation as far as charging with the lithium conversion? As far as I understand, it is better to let lithium batteries discharge somewhat (but not completely) than keep them charging all the time. What do you think?
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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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