Motorcycle Like a Boss

My friends KQ 300 starts fine and runs, as soon as you put it in gear and try to accelerate its bucks and farts like crazy, not moving... I cleaned carb and it worked good for 1 day... now back to same problem.... could it be such as a bent valve????

View File Linhai/Massimo T-Boss 550 Owners Manual
Linhai T-Boss Owners Manual
Submitter Mech Submitted 11/14/2023 Category Other Brands UTV  

View File Linhai T-Boss 550 service manual
Linhai T-Boss 550 service manual
This manual was produced by the Linhai Group primarily for use by Linhai dealers and their qualified mechanics. It is not possible to include all the knowledge of a mechanic in one manual, so it is assumed that anyone who uses this book to perform maintenance and repairs on Linhai vehicle has a basic understanding of the mechanical ideas and the procedures of vehicle repair. Repairs attempted by anyone without this knowledge are likely to render the vehicle unsafe and unfit for use.
Linhai Group is continually striving to improve all its models. Modifications and significant changes in specifications or procedures will be forwarded to all authorized Linhai dealers and will appear in future editions of this manual where applicable.
Submitter Mech Submitted 11/14/2023 Category Other Brands UTV  

I have a 1993 Polaris Trail Boss 350L 2- stroke.  after about 200 yards or so of driving the motor boggs down.....it will stay idling but if I floor it, it will die.....if I turn it off and wait a few minutes I can turn it back on and go like hell for another  couple hundred yards.... I thought the pilot might be worn out(I have it nearly closed now)......maybe the choke plunger isn't sealing or the Bowl isn't filling quick enough.....any suggestions would be appreciated. 

View File 2001 Polaris Trail Boss 325 service manual
2001 Polaris Trail Boss 325
Submitter Mech Submitted 05/15/2023 Category Polaris ATV