Yamaha RAPTOR 250 YFM350RV Owner's Manual page 376

MODEL
Quantity:
Without oil filter element replacement
With oil filter element replacement
Air filter:
Fuel:
Type
Tank capacity
Reserve amount
Carburetor:
Type × quantity
Manufacturer
Spark plug:
Type/manufacturer
Gap
Clutch:
Type
Operation
Transmission:
Primary reduction system
Primary reduction ratio
Secondary reduction system
Secondary reduction ratio
Transmission type
Operation
2.50 L
2.60 L
Wet element
Unleaded gasoline only
For Europe: Regular unleaded gasoline only with a
research octane number of 91 or higher
9.0 L
2.7 L
BSR36 × 1
MIKUNI
DR8EA / NGK
0.6–0.7 mm
Wet, Multiple-disc
Left hand operation
Spur gear
76/24 (3.166)
Chain drive
38/13 (2.923)
Constant mesh, 6-speed forward, 1-speed reverse
Left foot operation
10-3
YFM350R