Yamaha Overheating Issues

brevndeb

Your Mom
May 5, 2010
911
5
18
47
Beaumont CA-B-Town
Start with cleaning the radiator real good make sure all the fins are clean and there is nothing in there. Then make sure the fan is coming on. If there was a recent engine rebuild or for some reason the radiator was drained then the system needs to be bleeded. There is a brass phillips screw head on top of the water pump. While the rhino is running open the screw until all the air purges out of the system it may help to jack the front of the car up. Try all this then let us know! hope this helps.
 

ParaPros Racing

parapros racing
Jun 27, 2009
96
2
0
sun city CA
Hi

well i would put money on it being the thermostat i have replaced
them a lot they tend to get stuck open so just pull it and look at it
. and make sure u bleed the system good.
Brad

paraprosracing.com
 

07fj

Rainman - UTVUnderground Approved
Jan 19, 2009
1,383
25
0
59
Tonopah, Az
Hi

well i would put money on it being the thermostat i have replaced
them a lot they tend to get stuck open so just pull it and look at it
. and make sure u bleed the system good.
Brad

paraprosracing.com
I have yet to see a thermostat in 660 rhinos.

check to see if water is moving when cold, keep cap open for this. if not, the tang that feeds the water pump broke off.

bleed system like mentioned, but it is up on the outlet water neck near driver, not down on the water pump. 8 or 10mm wrench I believe

head gasket is possible

fan not coming on is possible
 

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