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Home / Small Engines / Kawasaki Engines / Kawasaki FS481V

Kawasaki FS481V Maintenance

Engine Model: Kawasaki FS481V

Engine Type: 4-cycle V-twin cylinder OHV gasoline engine

Total Displacement: 36.8 cu.in (603 cc)

Rated Engine Power: 13.5 Hp (10 kW)

Carburetor Type: Internally vented, fuel shut-off solenoid

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Service Data

Cylinder Compression, kPa (psi) ............... 390 (57)
Cylinder Inside Diameter (Max), mm (in) ............... 73.10 (2.878)
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)

Engine Oil and Filters

Engine Oil Type ............... SAE 10W-30, 10W-40, 5W-20
API Service Classifications ............... SJ or higher
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 ............... 49065-7007
Air Filter Element Part Number ............... 11013-0752
Air Filter Pre-Cleaner Part Number ............... 11013-7041

Carburetor Adjustment

Pilot Screw Setting ............... 1-5/8±1/2 turns out
Low Idle Speed (Carburetor), rpm ............... 1450
Low Idle Speed (Governor), rpm ............... 1550
High Idle Speed, rpm ............... 3600

Ignition System

Spark Plug Type ............... NGK BPR4ES
Spark Plug Gap, mm (in) ............... 0.70-0.80 (0.0277-0.0316)
Coil Air Gap, mm (in) ............... 0.20-0.40 (0.0079-0.0158)
Spark Plug Torque ............... 22 Nm (16 ft-lb)

Service Intervals

Check Engine Oil Level ............... Every 10 hours
Service Air Filter Pre-Cleaner ............... Every 25 hours
Change Engine Oil ............... Every 100 hours
Clean and Adjust Spark Plug ............... Every 100 hours
Service Air Filter Element ............... 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

Tightening Torques

Cylinder Head Bolts, Nm (ft-lb) ............... 27 (20)
Crankcase Cover Bolts, Nm (ft-lb) ............... 27 (20)
Flywheel Bolt, Nm (ft-lb) ............... 56 (41)
Valve Clearance Lock Screws, Nm (ft-lb) ............... 11 (8.2)
Connecting Rod Big End, Nm (ft-lb) ............... 9.8 (7.3)
Rocker Arm Bolts, Nm (ft-lb) ............... 14.7 (11)
Rocker Cover Mounting Bolts, Nm (ft-lb) ............... 5.9 (4.4)
Exhaust Pipe Flange Nuts, Nm (ft-lb) ............... 15 (11)
Spark Plugs, Nm (ft-lb) ............... 22 (16)
Governor Arm Clamp Nut, Nm (ft-lb) ............... 7.8 (5.8)
Carburetor Mounting Nut, Nm (ft-lb) ............... 5.9 (4.4)
Oil Drain Plug, Nm (ft-lb) ............... 6.9 (4.8)
Ignition Coil Bolts, Nm (ft-lb) ............... 5.9 (4.4)
Electric Starter Mounting Bolts, Nm (ft-lb) ............... 19.6 (14)
Intake Manifold Mounting Bolts, Nm (ft-lb) ............... 5.9 (4.4)

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