I a 1997 Suzuki King quad that you can manually switch gears on but it doesn't have a clutch. My wife has a Kawasaki Prairie 300 that has an automatic transmission that is selectable like a car.

I'm about to do an oil change on both and am not sure whether I should use wet clutch oil (motorcycle oil) or if regular old car oil will work.

Can anyone please explain to me (link/ video/ explain) how both the clutches on these quads work? I'm new to this quad thing lol.

 

Your King Quad will have two clutches, a lawnmower style centrifugal one where brake shoes fly out and catch a "brake" drum when the revs are high enough, and a normal multiplate motorcycle clutch. The first part of the gearchange pedal movement lifts the multiplate clutch, as you take your foot off, the clutch engages again, both are "wet".

Not sure about the Kawasaki, I thought the 300 was manual just like the old KQ. If it is an automatic, most belt drive autos have the wet centrifugal clutch and the belt pulleys are in constant engagement with each other, but I believe some cheaper designs allow the crank pulley to "run free" at low revs so don't need the centrifugal clutch.

 

Both the 300kq and Kawasaki 300 are foot shift trannies. 2001 Suzuki King Quad ATVs.

The only oil I heard you do not used on wet clutches is non motorcycle grade Snynthic due to its friction additives.

There are Snynthic oils that are motorcycle grade that are made for wet clutches like Amsoil for example.

A non wet clutch ATV can take any oil while a wet clutch ATV should use wet clutch oil.
It should state it right on the bottle's label if its wet clutch compatible.

It does on my Amsoil bottle which I use and both of my ATVs do not even have wet clutches since there both CVT.

 

Valvoline ATV oil

Extreme Condition Performance - Thermally stable formula maintains proper lubrication to protect engines under extreme conditions.
Wet Clutch Protection - Optimal frictional characteristics for high torque, smooth shifting and proper protection of the wet clutch.
Corrosion Resistance - Advanced additives help protect against water, deposits and other corrosive materials to keep engines clean.
Maximum Horsepower - Proper additive balance for maximum horsepower.
Minimal Wear - Increased anti-wear agents minimize wear from metal-to-metal contact.
Shear Stability - Shear stable viscosity improves better resist oil film breakdown.