Kawasaki FD620D Engine

General Technical Data

Kawasaki FD620D Engine Specifications

Engine Model ............... Kawasaki FD620D
Engine Type ............... 4-stroke, horizontal shaft, overhead valve gasoline
Number of Cylinders ............... 2
Cylinder Layout ............... 90 deg, V-Twin
Cylinder Liners ............... Cast iron
Displacement, L (cu in) ............... 0.617 (37.7)
Engine Bore, mm (in) ............... 76.0 (2.99)
Engine Stroke, mm (in) ............... 68.0 (2.68)
Maximum Horse Power, hp (kW) ............... 18.7 (14.0)
Rated Engine Speed, rpm ............... 3600
Maximum Torque, Nm (ft-lbs) ............... 44.6 (32.9)
Torque Speed, rpm ............... 2200
Fast Idle Speed, rpm ............... 3550
Slow Idle Speed, rpm ............... 1450
Compression Ratio ............... 9.0:1
Lubrication System ............... Pressurised
Oil Filter ............... Cartridge type full flow
Cooling System ............... Pressurized forced circulation type
Coolant Capacity, L (qts) ............... 2.7 (2.9)
Ignition System ............... Transistorized ignition
Spark Plug ............... NGK BMR4A
Starting System ............... Electric starter
Starter ............... Electric, shift type
Charging System ............... 12 V 20/30A with regulator

Fuel System

Fuel System ............... Carburetor
Carburetor ............... Twin barrel
Fuel Pump ............... Electric
Fuel Filter ............... Replaceable paper element
Fuel Tank Capacity, L (qts) ............... 20.0 (21.6)
Fuel ............... Unleaded gasoline (octane number 86 or higher)
Governor ............... All speed mechanical
Air Cleaner ............... Dual stage element

Dimensions

Length, mm (in) ............... 555 (21.9)
Width, mm (in) ............... 450 (17.7)
Height, mm (in) ............... 624 (24.6)
Net weight, kg (lbs) ............... 41.5 (92.0)

Kawasaki FD620D Maintenance Data

Cylinder Block and Valves

Cylinder Bore (Maximum), mm (in) ............... 76.07 (3.0067)
Cylinder Compression (Minimum), kPa ............... 1171
Intake Valve Clearance (Cold), mm (in) ............... 0.25 (0.0099)
Exhaust Valve Clearance (Cold), mm (in) ............... 0.25 (0.0099)

Engine Oil and Filter

Engine Oil Type ............... SAE 10W-30/10W-40, SAE 5W-20
Oil Classification ............... SF, SG, SH or SJ
Oil Capacity (w/o Filter), L (qts) ............... 1.8 (1.9)
Oil Capacity (with New Filter), L (qts) ............... 2.0 (2.2)
Oil Filter Part Number ............... 49065-2071
Air Filter Part Number ............... 11013-2204

Ignition System

Plug Type ............... NGK BMR4A
Plug Gap, mm (in) ............... 0.6-0.7 (0.0237-0.0277)
Ignition Coil Air Gap, mm (in) ............... 0.3-1.2 (0.0119-0.0474)
Ring End Gap (Maximum), mm (in) ............... 1.2 (0.0474)

Service Intervals

Change Engine Oil ............... Every 100 Hours
Change Oil Filter ............... Every 200 Hours
Clean and Re-gap Spark Plug ............... Every 100 Hours
Replace Spark Plug ............... Every 300 Hours
Clean Air Cleaner Paper Element ............... Every 100 Hours
Replace Air Cleaner Paper Element ............... Every 300 Hours
Check Carburetor Adjustment ............... Every 50 Hours
Check and Adjust Valve Clearance ............... Every 300 Hours
Change Coolant ............... Every 400 Hours

Kawasaki FD620D Tightening Torque Specs

Cylinder Head, Nm (ft-lbs) ............... 21 (15.5)
Connecting Rod, Nm (ft-lbs) ............... 21 (15.5)
Flywheel, Nm (ft-lbs) ............... 110 (80.5)
Crankcase Cover, Nm (ft-lbs) ............... 21 (15.5)
Intake Manifold, Nm (ft-lbs) ............... 7.8 (5.9)
Oil Drain Plug, Nm (ft-lbs) ............... 23 (16.5)
Spark Plug, Nm (ft-lbs) ............... 25 (18.6)
Valve Clearance Lock Nut, Nm (ft-lbs) ............... 8.8 (6.5)