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2004 Yamaha Grizzly YFM 660 F Intermittent fan issue


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I have a 2004 Grizzly YFM 660 F that I use to plow the driveway and I use it to do yard work. For me it's a work horse. The cooling fan quit working last year. I didn't have time to mess with it so I sent it to a Yamaha dealer and this is where it all went south. The OEM fan was over $400 and the Moose fan was around $250 plus labor and sales tax. So I chose to have the Moose fan installed. That's where the trouble began. The first snow fall I worked this old girl not knowing that the Moose cooling fan draws more power than the OEM fan and its tripping the cooling fan automatic reset fuse. Yes, I have done my homework and I have diagnosed the circuit. The only problem I have is...I can't find the fuse. I have read that it's on the left side of the airbox. I have looked at the electrical 1 diagram and it's no help. My question is do I need to remove the airbox or do I need to remove the rear plastics?  I have been hunting for a repair manual but I haven't found one. Any help would be greatly appreciated!

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  • 3 weeks later...

Update: because of the drawing listed above I was able to locate the circuit breaker. It is under the 4 wheel drive relays and the fuse box. The breaker is in the same cluster of wires as the tail light which is the 3 bullet connectors just before the wires enter the cover under under the rear rack. Unhook them and pull up on the wire easy don't go tearing at it. The circuit breaker is the bag at the end of the 5 wire cluster you just pulled up on. I removed the 4 wheel drive relays (they just slide up and are held in by a rubber cradle i had to wiggle them a little) to give me a better view and more room. The Moose Racing cooling fan draws more power than the Yamaha OEM fan. So I purchased a Marine grade 10 amp type 1 automatic reset circuit breaker, 15 feet of 16 guage wire ( I chose not to color coordinate but do be careful, the breaker will have a side that goes to the battery. It was the red wire on my machine.) I used bullet connectors but flat blade would work too. I chose to relocate the breaker. I put it in the compartment behind the battery where my tool kit was. I drilled 2 holes to bolt the circuit breaker to the side furthest away from the exhaust and one hole slightly larger to run the wire through. I put dielectric grease on the wire before I crimped them and then on the bullet connectors when I plugged them in. I also used heat shrink to seal the bullet connectors. At the breaker I was only able to use the grease but it does have a cover to keep out moisture. Finally, I siliconed the wire holes where I drilled through the plastics.  (I had to remove the rear rack and cover to chase the wire. For me it was the best option.) 

Again, Thank You for posting the diagram.

 

 

 

 

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