For the Yamaha 660 Rhino, it's recommended to use 80W-90 or 75W-90 gear oil for the differential. Always check the owner's manual for specific requirements and ensure the oil meets API GL-5 specifications. Regular maintenance and oil changes can help prolong the life of the differential.
2.11 with a filter
For a Yamaha Rhino 660, the recommended oil filter is the Yamaha part number 5UG-13440-00-00. Additionally, many users also opt for aftermarket options like the K&N KN-138 or the HiFlo HF138, which are compatible and offer good performance. Always ensure that the filter meets OEM specifications for optimal engine protection.
2.2 quarts
front or rear diffs take approximately 320cc. fill the diffs till the oil runs out the filler hole, it will find its own level.
To change the rear differential oil on a Yamaha Grizzly 660, first ensure the ATV is on a level surface and secure it with a block. Remove the drain plug from the rear differential and allow the old oil to completely drain out. Replace the drain plug, then remove the fill plug and use a funnel to add the recommended differential oil until it reaches the fill hole. Finally, replace the fill plug and check for any leaks.
10W40
The 2005 Yamaha Kodiak differential requires three quarts of oil. The manufacturer recommends that you never overfill the rear differential.
12
2.6 US QTS
The Yamaha Raptor 660 takes 3 Quarts 4-Stroke Oil or 10w/40.
80w90 hypoid oil. I use Mobile 1 synthetic in my Rhino gear boxes.
sounds like the oil pump went out