Yamaha AR195 2019 Owner's/Operator's Manual page 130

Specifications
Engine
Number of engines
Engine type
Number of cylinders
Engine displacement
Bore × stroke
Compression ratio
Valve clearance-intake (cold)
Valve clearance-exhaust (cold)
Lubrication system
Cooling system
Starting system
Ignition system
Spark plug (NGK)
Spark plug gap
Battery capacity
Charging system
Drive unit
Propulsion system
Jet pump type
Impeller rotation
Pitch angle
Transmission
Jet thrust nozzle angle
Jet thrust nozzle trim angle
Fuel and oil
Recommended fuel
Minimum octane rating (PON)
Minimum octane rating (RON)
Fuel tank total capacity
Recommended engine oil
Recommended engine oil type SAE
124
ITEM Specification
1
Liquid cooled 4-stroke, DOHC
4
3
1812 cm
86.0 × 78.0 mm (3.39 × 3.07 in)
8.5 : 1 (AR195/SX195)
11.0 : 1 (AR190/SX190)
0.14–0.23 mm (0.0055–0.0091 in)
0.36–0.45 mm (0.0142–0.0177 in)
(AR195/SX195)
0.28–0.37 mm (0.0110–0.0146 in)
(AR190/SX190)
Wet sump
Water
Electric
T.C.I.
LFR7A (AR195/SX195)
LFR6A (AR190/SX190)
0.8–0.9 mm (0.031–0.035 in)
12 V, 85 Ah
Flywheel magneto
Jet pump
Axial flow, single stage
Counterclockwise
15.1° (AR195/SX195)
14.0° (AR190/SX190)
Direct drive from engine
23+23°
3°
Premium unleaded gasoline (AR195/SX195)
Regular unleaded gasoline (AR190/SX190)
91 (AR195/SX195)
86 (AR190/SX190)
95 (AR195/SX195)
90 (AR190/SX190)
152 L (40.1 US gal, 33.4 Imp.gal)
YAMALUBE 4W or 4-stroke motor oil
SAE 10W-30, 10W-40, 20W-40, 20W-50