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MODEL	GX390
Engine Type	Air-cooled 4 stroke OHV
Bore x Stroke (mm)	88 x 64
Displacement (cc )	389
Net Power Output*	8.4 kw @3,600 rpm
Net Torque	24.5 N.m @ 2,800 rpm
Engine Configuration	Horizontal Shaft
Engine Fuel	Gasoline
Tank Capacity (L/Gallons)	6.5 / 1.72
Lubrication System	Splash
Oil Capacity (L)	1.1
Starter	Recoil Starter
Weight (net/gro)	33/31
Aspiration	Natural
Lubricant	Automotive SAE 10W/30 Type SF
Compression Ratio	8.2 : 1
Speed Setting, No Load	Fixed 3750 +/- 100 RPM
Spark Plug Type	F7TC
Intake Valve Clearance	0.08 - 0.12
Exhaust Valve Clearance	0.13 - 0.17
Ignition System	Transistorized Magneto
L x W x H (mm)	480 x 430 x 500