Using too low an octane fuel, incorrect timeing, or carbon buildup. Timing isn't adjustable on the 97 so I would say it is carbon buildup and too low octane or cheap quality fuel. I have gotten "93" octane at cheapy places and still had pinging but gotten regular or mid grade at better stations and not had the slightest hint of ping. Also, check to make sure your plugs and wires are in good shape.
No a force causes acceleration.
Force causes acceleration.
Try using a higher octane gasoline in this ATV. Many times the pinging is due to not using a 91 or higher octane fuel. A lower fuel like 85 or 87 may not be burning off as efficiently as the 91 octane which in turn will cause the pinging.
take it easier on the clutch as your reversing
Probably because your wipers are on intermittent.
Wheel balance may be off...
That the force that causes the acceleration is not constant.
Have the speed sensor replaced.
could have: Check engine light, rough run, stall, poor fuel miliage. Also loss of power and pinging sound under loads such as hills or acceleration. Carbon build up causes this valve to stick in higher milage vehicles especially. Eowawa
The force which causes acceleration towards the centre of a circle is called Centripetal force but what causes it can vary.
Knocking sounds like someone repeatedly rapping the engine with a hammer, and the quieter pinging resembles marbles being shaken inside a tin can. Knocking and pinging are actually symptoms of abnormal combustion in an engine, mostly heard when it is under heavier load, during acceleration as opposed to cruising. What causes abnormal combustion? Many things, some of them avoidable and some of them not, but the common solution to almost all of them is gasoline with a higher octane rating
Acceleration