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By TexAcoon
I'm looking to purchase a 2015 Massimo 550 that might have an issue with it's throttle position sensor.
From the fella selling this UTV, he claims its to set the idle on fuel injection because the engine will not stay idle or when it starts sometimes it idles too high.
My Question if anyone had any issues with their Massimo 550 and if it was actually the TPS or something else that would allow the machine to idle correctly.
Thanks!
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By Frank in MI
Thanks for accepting me!
Haven't got a side by side yet, but have been shopping.
Any advice welcome & I am on a limited budget, so haven't decided yet on new or used.
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By Greg Kilgore
Last year bought a small universal coolant style cab heater. Well I installed it today. Thanks to another member, RangeRider45, and his install
That told in his post the size fitting he used. I got the same fittings plus a few others. And all went kinda smooth. Took a few minutes to get air purged from coolant system. Should have parked on hill with front up in the air. But would have had a hard time working on it.
I had a variable power switch connected to an overhead cab fan. Never really used the fan that much. And I have to remove the fan to put on my cab enclosure anyway. So I repurposed the switch to supply power for the heater. The heater has 2 12-volt DC computer fans that are rated for 1.8 amps each. So it's not going to be a big drain on the weak charging system. And with the switch I've got great control over the speed of the fans.
If anyone is interested the radiator hoses are 7/8 inch. I reworked the temperature sending unit (moved it closer to radiator) to make room for all the extra plumbing I did to get the heater to work the way I wanted.
Plumbing parts list.
10-15 worm water clamps. 3/4 to 1 1/4 inch size.
2 1" x 3/4" x 1" PEX Tee
1 3/4" PEX ball valve
1 1" PEX ball valve
5/8" heater hose. I got 6' and probably have 4' left over.
I used the radiator house I cut out to use as splices between the PEX fittings. The PEX fittings are not true to their dimensions that are stated on the package. So they fit the 5/8" and 7/8" very nicely.
They way I have it plumbed is from radiation out side. A tee, then the 1" ball valve, then a Tee. Coming off the Tees are the hoses going to the heater core. There is a 3/4" ball valve on one of the Tees. The ball valves are used to bypass the heater core in the summer. Or direct the hot coolant through the heater core in winter. The temperature sending unit tells me how hot the coolant is. And if anything is getting too hot. The dash also has an idiot light that comes on if the head gets too hot. But doesn't do anything if the radiator gets too hot. There is a temp sensor on the radiator that controls the electrical fan. But if the coolant isn't circulating. That switch never sends a signal to turn on the fan. But enough talking/rambling. Everyone wants to see pics. The only thing I need to change is the orientation of the handle on the 1" ball valve. I have 2" or more clearance between the handle and the tire when cut hard right. But I still don't like it. And instead of taking the valve out and rotating 180°. I'm just going to take the nut off and rotate the handle 180°. Think I need to make a locking mechanism to lock the handles in place so they don't vibrate closed when the machine is moving.
The temperature sending unit and housing. Size 22 mm. Aluminum from Amazon.
Upper Tee the lower Tee is identical. Can also see the handle of the 3/4" ball valve on the 5/8" hose going to the heater.
The 1" ball valve. Goes between the 2 Tees
Wide view of the plumbing.
The heater installed in the sxs. The 3 black hoses are just hanging there. Zip ties to the heater but not attached to any thing. Will probably just direct 2 toward the wife's feet. And 1 toward mine. Or what ever is need as the heat is needed on rides. The black hose in passenger floorboard is some 1" hose that is not needed. Don't know what I'll do with it.
I think if I was going to do it again. I'd put some Indian Head gasket dressing or silicone on the 1" side of the PEX fittings. And I may still do that. But I really hate the ideal of introducing air back in the coolant system.
Any questions just ask. It may take a while to answer. But I'll try.
Ya be good and stay warm over the next few months
Kilgore.
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By Eagle Mountain Outfitters
Our R&D team just finished the first unit and wanted to show you guys. Need more cargo space without losing the functionality of being able to fold down the seat to use the full bed? Eagle Mountain Outfitters, the maker of the original metal UTV roof, has designed a foldable rear cargo basket to meet your needs. Price is $625 + $30 shipping. If you have any question's, please reach out to me at [email protected]
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By Hunterman22
2021 Hisun Axis 500 UTV (From Lowes)
Will NOT START
MY apologies if this is to much info just wanted to give yal the most information possible for help.
I'm a so called diyer. An Electrician by trade 21yrs. I got my S×S from my last job. The contractor purchased this S×S for this specific job brand new, from Lowes. They used it for hauling materials, tools, & a little bit of anything you can think of on an Industrial type job site.
I remember getting on the SxS one time & pushed the gas petal all the way to the floor & SxS had very little power.
So anyway ,when the job finished up back mid July this year (7/2024) , I asked the contractor what they was going to do with it. I was told to take it. Otherwise it would go to the contractors yard (storage yard) & most likely rust away.
Took it home washed it , it had a heavy coat of dust on it & in it dust was every where. My helper & I had to push it on the trailer to get it home. After washing it throughly I let it sit & dry out for a good day and half, maybe 2 days. Before trying to start it. NO START. Will turn over & try to start but thats it.
So here's what I've purchased & installed. New Air Filter, new spark plug, new air idle control valve (AICV), new throttle position sensor, new throttle body, new oxygen sensor, new digital dash speedometer/fuel gauge/clock.
Also drained the old oil & gas & replaced with new oil & 93oct. gas. I should probably mention that I've changed the AICV twice. The 1st time I changed the AICV I was able to get the SxS started & let idle for at least 10-15min. Drove out of the garage, with very little power, turned it around & barely got it back in the garage.That was the one & only time I've been able to start the SxS. I've also cleaned the Throttle Body and & intake with TB cleaner. So after that the AICV was making weird noise so I pulled it out & tried cleaning it, pretty sure I messed it up. So I purchased a Throttle Body that came with new AICV & TPS. Still NO START. I've checked the fuel pump & the fuel injector. I took the injector off still hooked up to wiring & turned the key over, the injector sprayed a lot of gas out kinda the size of a volleyball. I've also checked the clearance gap on the intake & exhaust valve. But today 11/2/2024 I'm going recheck spark plug gap & the valve gaps. And alot of other checking. Would the driver side seat belt have anything to do with it not starting?? I know the driver side seat belt has to be in gauged for full throttle "going fast". Thing is the drv. side seat belt will latch but feels like might be messed up inside of it. Tired opening it up but to no avail. I've never had a S×S or 4wheeler so I was really excited when I got the S×S,not so much anymore. I work on & fix my own vehicles usually no problems. But this SxS is kicking my ass.
So if possible & someone could help me with some ideas or tell me what Im doing wrong or did wrong, I would greatly appreciate it. Thank you for reading thus far.
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