Yamaha RAPTOR YFM660RP Owner's Manual - page 166
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Engine oil:
Type
Recommended engine oil classification:
API Service SE, SF, SG type or higher
Quantity:
Periodic oil change
With oil filter replacement
Total amount
1.9 L (1.67 Imp qt, 2.01 US qt)
1.95 L (1.72 Imp qt, 2.06 US qt)
2.3 L (2.02 Imp qt, 2.43 US qt)
MODEL
YFM660R
0˚
10˚
30˚
50˚
70˚
90˚
110˚
130˚F
YAMALUBE 4 (10W30) or SAE 10W30
SAE 5W30
-20˚
-10˚
0˚
10˚
20˚
30˚
40˚
50˚C
YAMALUBE 4 (20W40) or SAE 20W40
CAUTION:
Be sure to use motor oils that do not contain anti-
friction modifiers. Passenger car motor oils (often
labeled “ENERGY CONSERVING II”) contain anti-
friction additives which will cause clutch and/or
starter clutch slippage, resulting in reduced com-
ponent life and poor engine performance.