Yamaha RAPTOR YFM660R Owner's Manual page 274

1. Engine guard
1. Protège-carter
1. Protector del motor
2. Bolt (× 6)
2. Boulon (× 6)
2. Perno (× 6)
8-21
To change the engine oil (with or without oil
filter cartridge replacement)
1. Remove the engine guard by removing
the bolts.
2. Start the engine, warm it up for several
minutes, and then turn it off.
3. Place an oil pan under the engine to col-
lect the used oil.