Kawasaki FH531V Specifications
| Engine Model: Kawasaki FH531V |
| Engine Type: 4-cycle V-Twin cylinder OHV vertical shaft air-cooled gasoline |
| Total Displacement: 30.1 cu.in (494 cc) |
| Rated Engine Power: 18 Hp (13.4 kW) at 3600 rpm |
| Carburetor Type: Float with fixed main jet |
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Engine Model ............... Kawasaki FH531V
Engine Type ............... 4-cycle V-Twin vertical shaft OHV air cooled gasoline engine
Number of Cylinders ............... 2
Cylinder Liners ............... Cast iron
Displacement, cc (cu in) ............... 494 (30.1)
Cylinder Bore, mm (in) ............... 68.0 (2.69)
Piston Stroke, mm (in) ............... 68.0 (2.69)
Rated Engine Power, hp (kW) ............... 18.0 (13.4)
Rated Engine Speed, rpm ............... 3600
Maximum Torque, Nm (ft-lb) ............... 39 (28.8)
Torque Speed, rpm ............... 2400
Compression Ratio ............... 8.5:1
Lubrication System ............... Full pressure
Oil Filter Type ............... Cartridge type full flow filter
Air Cleaner Type ............... Dual stage element, dry type
Cooling System ............... Forced air cooled
Ignition System ............... Flywheel magneto transistor type
Starting System ............... Bendix type electric starter
Electrical System Rating, Volts ............... 12
Fuel System ............... Carburetor
Carburetor Type ............... Float with fixed main jet
Fuel Pump Type ............... Pulse
Governor Type ............... Mechanical
Fuel Type ............... Gasoline (86 or higher)
Overall Length, mm (in) ............... 425 (16.7)
Overall Width, mm (in) ............... 359 (14.1)
Overall Height, mm (in) ............... 441 (17.4)
Net weight, kg (lbs) ............... 32.0 (71.0)
Cylinder Inside Diameter (Max), mm (in) ............... 68.10 (2.681)
Cylinder Bore Diameter (Std), mm (in) ............... 68.00-67.98 (2.677-2.676)
Cylinder Bore Diameter (0.50 Oversize), mm (in) ............... 68.50-68.48 (2.697-2.696)
Cylinder Bore Out Round, mm (in) ............... 0.056 (0.0022)
Crankpin Width, mm (in) ............... 39.50 (1.56)
Crankpin Outside Diameter, mm (in) ............... 34.94 (1.3756)
Crankshaft Run Out, mm (in) ............... 0.05 (0.002)
Crankshaft Journal Diameter (PTO), mm (in) ............... 34.90 (1.374)
Crankshaft Journal Diameter (Flywheel), mm (in) ............... 34.93 (1.375)
Crankshaft Journal Bearing Inside Diameter, mm (in) ............... 35.15 (1.384)
Connecting Rod Bend, mm (in) ............... 0.15/100 (0.006/3.94)
Connecting Rod Big End Width, mm (in) ............... 18.80 (0.74)
Connecting Rod Big End Inside Diameter, mm (in) ............... 35.055 (1.3801)
Connecting Rod Small End Inside Diameter, mm (in) ............... 16.05 (0.632)
Camshaft Journal Diameter, mm (in) ............... 15.985 (0.6293)
Camshaft Bearing Inside Diameter, mm (in) ............... 16.136 (0.6352)
Cylinder Head Warp, mm (in) ............... 0.05 (0.002)
Valve Clearance, mm (in) ............... 0.10-0.15 (0.004-0.006)
Valve Seating Surface Angle, deg ............... 45
Valve Seating Surface Width, mm (in) ............... 0.6-0.9 (0.024-0.035)
Valve Guide Inside Diameter, mm (in) ............... 6.00-6.012 (0.2362-0.2367)
Valve Head Thickness, mm (in) ............... 0.35 (0.014)
Valve Stem Runout, mm (in) ............... 0.05 (0.002)
Valve Stem Diameter (Intake), mm (in) ............... 5.95 (0.0234)
Valve Stem Diameter (Exhaust), mm (in) ............... 5.93 (0.0233)
Valve Guide Inside Diameter, mm (in) ............... 6.08 (0.239)
Valve Spring Free Length, mm (in) ............... 31.0 (1.22)
Rocker Arm Push Rod Run Out, mm (in) ............... 0.5 (0.02)
Cam Lobe Height, mm (in) ............... 29.131 (1.1469)
Piston Diameter, mm (in) ............... 67.79 (2.669)
Piston Pin Outside Diameter, mm (in) ............... 15.96 (0.628)
Piston Pin Hole Inside Diameter, mm (in) ............... 16.08 (0.633)
Top Ring Groove Clearance, mm (in) ............... 0.15 (0.006)
Second Ring Groove Clearance, mm (in) ............... 0.12 (0.005)
Piston Ring Width, mm (in) ............... 1.40 (0.055)
Top Ring End Gap, mm (in) ............... 0.70 (0.028)
Second Ring End Gap, mm (in) ............... 0.78 (0.031)
Oil Ring End Gap, mm (in) ............... 1.05 (0.041)
Cylinder Inside Diameter (Max), mm (in) ............... 68.10 (2.681)
Cylinder Compression, kPa (psi) ............... 390 (57)
Cylinder Head Warp, mm (in) ............... 0.05 (0.002)
Intake Valve Clearance, mm (in) ............... 0.10-0.15 (0.004-0.006)
Exhaust Valve Clearance, mm (in) ............... 0.10-0.15 (0.004-0.006)
Spark Plug Type ............... Champion RCJ8Y
Spark Plug Gap, mm (in) ............... 0.75 (0.0296)
Charging Coil ............... 12V, 13 amps with regulator
Engine Oil Type ............... SAE 10W-30, 10W-40, 5W-20
API Service Classifications ............... SF, SG, SH, SJ, or SL
Oil Capacity (w/o Filter), L (qts) ............... 1.5 (1.6)
Oil Capacity (with New Filter), L (qts) ............... 1.7 (1.8)
Oil Filter Part Number ............... 49065-7010
Air Filter Element Part Number ............... 11013-7002
Air Filter Pre-Cleaner Part Number ............... 11013-7001
Carburetor Model ............... Walbro LMF
Throttle Bore Diameter, mm (in) ............... 26.0 (1.02)
Venturi Diameter, mm (in) ............... 18.0 (0.71)
Main Jet ............... #116.3
Pilot Jet ............... #43.8
Main Air Jet ............... 1.4
Pilot Air Jet ............... 0.8
Pilot Screw Setting ............... 1-3/8 turn out
Float Level ............... Float parallel to carburetor body
Low Idle Speed, rpm ............... 1550±100
High Idle Speed, rpm ............... 3600±100
Check Engine Oil Level ............... Every 10 hours
Service Air Filter Pre-Cleaner ............... Every 25 hours
Service Air Filter Element ............... Every 50 hours
Change Engine Oil ............... Every 100 hours
Clean and Adjust Spark Plug ............... Every 100 hours
Replace Engine Oil Filter ............... Every 200 hours
Replace Air Filter Element ............... Every 200 hours
Check Carburetor Adjustment ............... Every 300 hours
Check and Adjust Idle Speed ............... Every 300 hours
Check and Adjust Valve Clearance ............... Every 300 hours
Clean Combustion Chamber ............... Every 300 hours
Replace Spark Plug ............... Every 300 hours
Clean Fuel Line ............... Every 300 hours
Cylinder Head Bolts ............... 25 Nm (19 ft-lb)
Valve Clearance Lock Screws ............... 6.9 Nm (5.1 ft-lb)
Connecting Rod Big End Bolts ............... 5.9 Nm (4.3 ft-lb)
Rocker Arm Bolts ............... 28 Nm (20.5 ft-lb)
Rocker Cover Mounting Bolts ............... 5.9 Nm (4.3 ft-lb)
Exhaust Pipe Flange Nuts ............... 15 Nm (11 ft-lb)
Spark Plugs ............... 22 Nm (16 ft-lb)
Drain Screw (Carburetor) ............... 1.3 Nm (0.95 ft-lb)
Governor Arm Clamp Nut ............... 7.8 Nm (5.7 ft-lb)
Intake Manifold Mounting Bolts ............... 5.9 Nm (4.3 ft-lb)
Cleaner Body Mounting Screws ............... 3.4 Nm (2.5 ft-lb)
Plug Bolt (Engine-Shroud) ............... 5.9 Nm (4.3 ft-lb)
Plug Screw (Engine-Shroud) ............... 3.4 Nm (2.5 ft-lb)
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