i have a 660 grizz it likes to over heat sometimes took it in for a recall and had the side farings replaced but still getting hot or when playing in the mud any ideas besides moving the radiator to the top of the front rack

 

does the cooling fan run? those things like to lock up with no warning at all. you can get them off fleabay pretty cheap if that is the problem. a new one is crazy high. like 250 bucks.

 

yea the fan runs and i also let the fan run after i turn the four wheeler off i have noticed it likes to heat at lower speeds or on long hills and i keep a check on the coolant i havent noticed the levels dropping or anything

 

Is it really overheating? My 02 does the same, the fan runs quite a bit but it doesn't overheat where it is boiling of smoking. I had the recall done after I did it myself, long story, and it doesn't stumble,vapor lock, anymore. They do have a tendency to run pretty warm though.

 

it doesn't boil over of course i dont let it get to that point i shut it down when the temp light comes on but i do let the fan run with the motor shut off

 

Your radiator could be clogged with Mud.... making it run warm.... depending on where you live you should also run the 20W40 or 20W50 oil...

 

I think the oil recommended in the owner's manual should be fine. I would agree with the mud clog though. I would take a hose and squirt it out real good (yes, I'm still talking about the radiator).

 

<div class="FTQUOTE"><begin quote>Originally posted by: JDQuadRider

I think the oil recommended in the owner's manual should be fine. I would agree with the mud clog though. I would take a hose and squirt it out real good (yes, I'm still talking about the radiator).</end quote></div>

The owners manual does recommend 20W40 (20W50 -older Yamalube) Above 40 (F). It all depends on where you live and the temperatures you ride... I agree that 10W30 is more of an "all-season" oil... but I run the 20W50 spring/summer/fall.

 

i try not to burry it up to the radiator but it does happen lol but i do keep it sprayed out good and clean for the most part and i did change the oil and went to the 20w 50 yamalube it dont do it everytime i ride but on steep inclines or long up hill pulls at low speed it seems to get hot idk