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By barticus73
I am looking to buy a small UTV to do work around my property and priced a brand new Massimo T-Boss 560 through Lowes @ $10,500 out the door or a Dealer sold CFMOTO Uforce 600 at $11,500 out the door. Are there any glaring reasons to go with the Uforce 600 at an extra $1000? Is one model more reliable than the other? Any input greatly appreciated.
Thank you,
Jerry
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By Tim n Deb
Riding out today it acted like it ran out of gas, stalled and died and would not start. Towed back to house, New plug added this past month, plenty of oil, getting plenty of gas, battery cranks good. Trys to kick in and starts but doesnt. Two days prior while sitting at a idle it died. Added gas and it started did my ranch chores with it. But just now it stalled out cranks but will not start. Tried to find if fault codes came up on the clock like manual says but not sure I am doing that right. Any and all help apprecated. Thank you
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By Chile
2018 Massimo 700 MSU. The machine started burning oil all of a sudden. One day fine-- next morning burning oil. Looking for advice. Do I pull the engine to inspect the top end or can it be done with the engine in place? Pro? Cons?
Any and all assistance is greatly appreciated in advance.
Chile
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By Chile
2018 Massimo MSU 700 EFI. I realize that this engine is essential the same as in all of the HISUN based Yamaha clones out there. I am in the process of performing a top end diagnosis/rebuild. I have an AMAZON top end rebuild kit on order in anticipation of this activity.
Question 1: When exploring the myriad of top end rebuild kits on the market for these units there are some cylinder assemblies that have "686 cm3" badging next to the cam cain tensioner boss. Others compatible with the unit do not have this badging. The existing cylinder assy does not have the 686 badging. I am assuming that this simply verifies that the cylinder assy is for a 686 cm3 engine which of course the stock 700 series HISUN engines are. Am I missing something here or is this just a manufacturer artifact? With or without the badging the application listings all indicate compatibility with the MSU 700 series engines.
Question 2: I have reviewed at minimum a dozen videos associated with this rebuild. To date I have not found one that deals with piston/cylinder clearance and/or ring gap verification. The advertised specifications for these various "top end rebuild kits" all indicate: Cylnider bore = 102mm and piston diameter=101.5mm. The math yields a .5mm (as in 1/2 mm) difference. That seems to be a very large piston/cylinder clearance. I realize I am referencing advertised specs rather than emperically measured values but the numbers have gotten my attention. I have referenced the FSM and found it to be somewhat confusing in this regard. Hopefully the experts on this forum can enlighten me as to where my observations are faulty here.
Any and all assistance is greatly appreciated .
Thank you all in advance,
Chile
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By Prepper
I have been doing a little research on which engine oil is best for UTV engines. There seems to be some disagreement over using a good quality regular engine oil, and the necessity of using "M2" (or wet clutch suitable) oil. My understanding is the "wet clutch" suitable oil has less friction reduction properties (hence a more responsive clutch with less slippage). While less friction reduction properties would seem to be better for the wet clutch... it would not be best for the internal engine parts like camshaft bearings and other moving parts where friction is detrimental and would lead to premature failure. Some folks swear you need M2 oil, while others say they have been using regular motor oil for years and their clutch is just fine. Could they both be right ???
Any thoughts ?
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