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By Greg Kilgore
I'm 99.9% sure head gasket is blown.
Don't have coolant in oil. That a good thing. But think coolant is getting in combustion chamber.
I did compression test.
Got 120psi walked away. Came back to 105psi 15 minutes later.
How hard is it to replace?
https://youtu.be/N31mOtOPuKI?si=nSnuF4-weRU2T10t
Advise?
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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 Jr Perez
I need help when I put the key in and put to on position the neutral light turns on then shuts off I tried moving the shift linkage but the neutral light won't turn on it only has 651 miles cranks fine 2019 tboss 550
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By johnney
i have a 2011 hisun ys 400 idles high,once in awhile, runs horrible under load. iv'e put several differant carbs on it , cleaned the gas tank , took off the vaccum fuel pump and put an
electric fuel pump. no change HELP
this is a carburated engine, but was wondering is there any electrical components that meter the fuel flow, like mass air flow senser or something like that could be causing the fuel delivery
problem.
ps i have owned this rig since it was new , and haven't had a full year of flawless riding.
oh and bought it from menards and told me i was stuck with it.
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By Jerrys500
Hi I'm about to order parts to do a bunch of work on my Massimo. Does anyone know if there's a difference in the top end kit {piston, Cylinder, Rings, Gaskets, Piston Pin} if it has a carb or EFI? I'm EFI and I think some came with a carb so I thought i'd ask before making a mistake...
Thanks Jerr
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