Yamaha BANSHEE YFZ350P Owner's Manual page 158

Engine oil (2-cycle):
Type
Mixing ratio
Transmission oil:
Type
Recommended engine oil classification:
Capacity
Periodic oil change
Total amount
Radiator capacity:
(Including all routes)
Air filter:
Model
Yamalube R, Castrol R30, A545, A747
See page 5-6.
Yamalube 4 (10W30) or SAE 10W30
API Service SE, SF, SG type or higher
cC
Be sure to use motor oils that do not contain
anti-friction modifiers. Passenger car motor
oils (often labeled "Energy Conserving")
contain anti-friction additives which will
cause clutch and/or starter clutch slippage,
resulting in reduced component life and
poor engine performance.
1.5 L (1.3 Imp qt, 1.6 US qt)
1.7 L (1.5 Imp qt, 1.8 US qt)
1.5 L (1.3 Imp qt, 1.6 US qt)
Wet type element
10-2
YFZ350