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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 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 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 provided 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 Jon Spruill
Hey Guys, I have been chasing a stalling condition for about two weeks now. The bike will crank up and idle fine, then after about 20 seconds it will fall on its face and stall. It happens at both idle and while running at various rpms. You can turn the key off, turn it back on and it will fire right back up without trouble. I have verified spark on both cylinders with a spark tester. I have also added an inline fuel filter, and pulled the injectors to verify proper pulse on each. Things I have replaced - (relearn procedure performed after each component replaced): spark plugs, ECU, relay/fuse box, fuel pump, & throttle position sensor - all with no improvement of the condition. The only warning light I get when the condition occurs is the oil lamp. The bike only has 14 miles. I am at a loss and appreciate any help and suggestions! Thanks
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