what oil do u put in your grizzly besides yamalube. i would like to use a synthetic and i need to know if i can use automobile oil, like castrol or penzoil or valvoline etc etc.. i have a 2000 grizz and i need to change the oil out soon.. thanks for al replys

 

I used to use just plain motor oil but the guy at yamaha said it's not near as good as the Yamalube

 

I've always run Mobile 1 Synthetic 15w50 and have not had any problems.

 

I have always used Castrol 20w/50 in mine. I works just great, no problems. I usually change mine once in the spring and once in the fall.

Rick

 

mobil 1 synthetic 10w40

 

i called 4 yamaha dealers and 3 out of the 4 said that regular automobile oil will not be as good as yamalube because of friction modifiers or something like that.. they said it has to be motorcycle oil because of the clutches or something, but the grizz is an automatic.. im soooooooooooooooo confuzzled

 

For most quads and motorcycles you shouldent use a car type oil. Part of the additive package in a car oil is some friction modifiers to reduce wear.
Now in a oil bath auto or manual clutch quad or bike those additives can cause the clutch to slip or chatter and wear prematurley. Now lots of people will argue that point till they are blue in the face. BUT it dosent really matter to a Grizz owner (or any belt driven quad for that matter). The belt driven quads use a diffrent type of clutch system built into the belt pullies it dosent use the engine oil for lubrication. The oil recomendation in the Yamaha manual is a generic recomendation for all their quads. So as far as the Grizz is concerned you can use whatever oil you want. Save the money on the Yamalube. Go buy a good quality full Synthtic oil and dont give it anouther thaught. You deffinatly want to run a Synthetic in the grizz it will run about 20deg cooler and wont turn black as fast from the heat.

 

Sorry about the delete. i thought i was deleting something else, somehow.

It has a centrifagul clutch. that drives the pulley system, but the belt stays tight. the ratio of the pulleys is controlled by weights that are in the pulley. as the pulley spins it moves the weights out alog an angle path and causes the pulley to slid together and raise the belt. I have been told that the polaris is like you are talking about but i haven't seen it. I've been told thats one of the main reasons that polaris belts wear out easy when riding in high all the time.

 

HEY, Mudrush deleted his comment! Well I'll leave mine and see if anyone can tell me if I am close...


Mudrush, I was under the impression that it was more like a snowmobile, in which case you have a v-belt interacting within a variable width pulley that pulls in tighter as the engine revs higher, which squeezes the belt further out effectively increasing the gear ratio progressively. And when the pulley (and engine) are at idle, the pulley is wide enough to spin freely about the belt without grabbing it. In which case there is no wet clutch? Or I could be WAY off since I have never been inside my Grizzly yet to see the setup, but I always thought it was like a snowmobile....

 

Dosperado,
You're partially right. The difference between the Grizzly clutching system and a traditional snowmobile system is the the GRizz uses a centrifugal clutch in addition to the pulleys, which allow the belt to stay engaged all the time. This allows for engine compression braking, and less belt wear.