Coolant - Yamaha GRIZZLY 660 YFM66FGW Owner's Manual

5. Add the recommended differential gear oil to
the brim of the filler hole as shown.
1. Differential gear oil
2. Differential gear oil filler bolt
3. Correct oil level
8
Recommended differential gear oil:
See page 10-1.
ECB00410
CAUTION:
Be sure no foreign material enters the differen-
tial gear case.
6. Install the oil filler bolt, and then tighten it to the
specified torque.
Tightening torque:
Differential gear oil filler bolt:
23 Nm (2.3 m·kgf, 17 ft·lbf)
7. Check the differential gear case for oil leak-
age. If oil is leaking, check for the cause.
EBU23470

Coolant

The coolant level should be checked before each
ride. In addition, the coolant must be changed at
the intervals specified in the periodic maintenance
and lubrication chart.
EBU27120
To check the coolant level
1. Place the ATV on a level surface.
NOTE:
The coolant level must be checked on a cold en-
gine since the level varies with engine tempera-
ture.
2. Check the coolant level in the coolant reser-
voir.
8-24