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Home / Small Engines / Kawasaki Engines / Kawasaki FD620D

Kawasaki FD620D Maintenance

Engine Model: Kawasaki FD620D

Engine Type: 4-cycle 2-cylinder liquid cooled gasoline engine

Total Displacement: 37.7 cu.in (617 cc)

Rated Engine Power: 18.7 Hp (14 kW)

Carburetor Type: Down draft, fixed main jet

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Service Data

Cylinder Inside Diameter (Max), mm (in) ............... 76.067 (2.9948)
Cylinder Head Warp, mm (in) ............... 0.05 (0.002)
Cylinder Compression, kPa (psi) ............... 1170 (170)
Intake Valve Clearance (Cold), mm (in) ............... 0.25 (0.010)
Exhaust Valve Clearance (Cold), mm (in) ............... 0.25 (0.010)

Engine Oil and Filters

Engine Oil Type ............... SAE 10W-30, 10W-40, 5W-20
API Service Classifications ............... SF, SG, SH or SJ
Oil Capacity (w/o Filter), L (qts) ............... 1.5 (1.6)
Oil Capacity (with New Filter), L (qts) ............... 1.8 (1.9)
Oil Filter Part Number ............... 49065-2071
Air Filter Element Part Number ............... 11013-2204
Air Filter Pre-Cleaner Part Number ............... 11013-2114

Caburetor Adjustment

Caburetor Model ............... Teikei FD22K-1L
Main Bore Diameter, mm (in) ............... 26.0 (1.02)
Venturi Diameter, mm (in) ............... 22.0 (0.87)
Main Jet ............... #112
Pilot Jet ............... #58
Main Air Jet ............... 1.8
Pilot Air Jet ............... 0.9
Pilot Screw Setting- 1-1/4±1/4 turns out
Low Idle Speed, rpm ............... 1450±100
High Idle Speed, rpm ............... 3525±75

Ignition System

Spark Plug Type ............... NGK BMR4A
Spark Plug Gap, mm (in) ............... 0.6-0.7 (0.0237-0.0277)
Coil Air Gap, mm (in) ............... 0.3-1.2 (0.0119-0.0474)
Spark Plug Torgue, Nm (ft-lb) ............... 15 (11.1)

Service Intervals

Check Engine Oil Level ............... Every 10 hours
Service Air Filter Pre-Cleaner ............... Every 25 hours
Clean Fuel Filter ............... Every 50 hours
Change Engine Oil ............... Every 50 hours
Clean and Adjust Spark Plug ............... Every 100 hours
Service Air Filter Element ............... Every 100 hours
Replace Engine Oil Filter ............... Every 200 hours
Check Radiator and Hoses ............... Every 200 hours
Check Carburetor Adjustment ............... Every 200 hours
Check and Adjust Idle Speed ............... Every 200 hours
Check and Adjust Valve Clearance ............... Every 300 hours
Clean Combustion Chamber ............... Every 300 hours
Replace Spark Plug ............... Every 300 hours
Replace Air Filter Element ............... Every 300 hours
Clean Fuel Hose ............... Every 300 hours
Change Engine Coolant ............... Every 400 hours

Tightening Torques

Cylinder Head, Nm (ft-lb) ............... 21 (15.5)
Connecting Rod, Nm (ft-lb) ............... 21 (15.5)
Flywheel, Nm (ft-lb) ............... 110 (80.5)
Crankcase Cover, Nm (ft-lb) ............... 25 (19.1)
Intake Manifold, Nm (ft-lb) ............... 7.8 (5.9)
Oil Drain Plug, Nm (ft-lb) ............... 23 (16.5)
Spark Plug, Nm (ft-lb) ............... 15 (11.1)
Carburetor, Nm (ft-lb) ............... 17 (12.1)
Radiator, Nm (ft-lb) ............... 17 (12.1)
Governor Arm, Nm (ft-lb) ............... 7.8 (5.8)
Valve Clearance Lock Nut, Nm (ft-lb) ............... 8.8 (6.5)

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