Kawasaki FX691V Specifications
| Engine Model: Kawasaki FX691V |
| Engine Type: 4-cycle V-Twin cylinder OHV vertical shaft air-cooled gasoline |
| Total Displacement: 44.3 cu.in (726 cc) |
| Rated Engine Power: 22 Hp (16.4 kW) at 3600 rpm |
| Carburetor Type: Two barrel with fixed main jet |
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Engine Model ............... Kawasaki FX691V
Engine Type ............... 4-cycle vertical shaft V-twin OHV air-cooled gasoline engine
Number of Cylinders ............... 2
Displacement, cc (cu in) ............... 726 (44.3)
Cylinder Bore, mm (in) ............... 78.0 (3.07)
Piston Stroke, mm (in) ............... 76.0 (2.99)
Rated Engine Power, hp (kW) ............... 22.0 (16.4)
Rated Engine Speed, rpm ............... 3600
Maximum Torque, Nm (ft-lb) ............... 53.4 (39.3)
Torque Speed, rpm ............... 2200
Compression Ratio ............... 8.2:1
Cooling System ............... Forced-air
Lubrication System ............... Pressure feed by positive displacement pump
Oil Filter ............... Cartridge type full flow
Air Cleaner ............... Dual stage element, heavy duty type
Ignition System ............... Transistorized-flywheel magneto
Starting System ............... Shift type electric starter
Electrical System Rating, Volts ............... 12
Fuel System ............... Carburetor
Carburetor Type ............... Float type with fixed main jet, two barrel
Fuel Pump ............... Diaphragm type pulse pump
Fuel Type ............... Gasoline (86 or higher)
Governor Type ............... Flyweight all speed governor
Overall Length, mm (in) ............... 480 (18.8)
Overall Width, mm (in) ............... 425 (16.7)
Overall Height, mm (in) ............... 550 (21.6)
Net weight, kg (lbs) ............... 46.0 (101.4)
Cylinder Inside Diameter (Max), mm (in) ............... 78.08 (3.074)
Cylinder Bore Out Round, mm (in) ............... 0.05 (0.002)
Connecting Rod Bend, mm (in) ............... 0.15/100 (0.006/3.94)
Connecting Rod Big End Width, mm (in) ............... 22.05 (0.868)
Crankpin Width, mm (in) ............... 40.0 (1.57)
Connecting Rod Big End Inside Diameter, mm (in) ............... 40.04 (1.58)
Connecting Rod Small End Inside Diameter, mm (in) ............... 17.06 (0.672)
Crankpin Outside Diameter, mm (in) ............... 39.94 (1.57)
Crankshaft Runout, mm (in) ............... 0.05 (0.002)
Crankshaft Journal Diameter (PTO), mm (in) ............... 37.90 (1.492)
Crankshaft Journal Diameter (Flywheel), mm (in) ............... 39.88 (1.570)
Crankshaft Bearing Inside Diameter, mm (in) ............... 40.035 (1.576)
Cylinder Head Warp, mm (in) ............... 0.05 (0.002)
Valve Clearance, mm (in) ............... 0.10-0.15 (0.0040-0.0059)
Valve Seat Angle (Intake, Exhaust), deg ............... 45
Valve Seat Width (Intake), mm (in) ............... 1.2-1.8 mm (0.047-0.071)
Valve Seat Width (Exhaust), mm (in) ............... 0.8-1.6 (0.031-0.063)
Valve Guide Inside Diameter (Intake, Exhaust), mm (in) ............... 6.00-6.012 (0.2362-0.2367)
Valve Head Thickness (Intake, Exhaust), mm (in) ............... 0.30 (0.012)
Valve Stem Runout (Intake, Exhaust), mm (in) ............... 0.05 (0.002)
Valve Stem Diameter (Intake), mm (in) ............... 5.95 (0.234)
Valve Stem Diameter (Exhaust), mm (in) ............... 5.93 (0.233)
Valve Guide Inside Diameter (Intake, Exhaust), mm (in) ............... 6.08 (0.239)
Valve Spring Free Length (Intake, Exhaust), mm (in) ............... 31.0 (1.22)
Rocker Arm Push Rod Runout (Intake, Exhaust), mm (in) ............... 0.5 (0.02)
Cam Lobe Height, mm (in) ............... 29.36 (1.156)
Piston Outside Diameter, mm (in) ............... 77.79 (3.063)
Top Ring Groove Clearance, mm (in) ............... 0.19 (0.0075)
Second Ring Groove Clearance, mm (in) ............... 0.20 (0.0079)
Piston Ring Thickness, mm (in) ............... 1.1 (0.043)
Top Ring End Gap, mm (in) ............... 0.6 (0.024)
Second Ring End Gap, mm (in) ............... 0.9 (0.035)
Oil Ring End Gap, mm (in) ............... 1.1 (0.043)
Piston Pin Outside Diameter, mm (in) ............... 16.96 (0.668)
Piston Pin Hole Inside Diameter, mm (in) ............... 17.08 (0.672)
Cylinder Inside Diameter (Max), mm (in) ............... 78.08 (3.074)
Cylinder Compression, kPa (psi) ............... 448 (65)
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 ............... 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)
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) ............... 1.8 (1.9)
Oil Capacity (with New Filter), L (qts) ............... 2.1 (2.2)
Oil Filter Part Number ............... 49065-7007
Primary Air Filter Part Number ............... 11013-7045
Secondary Air Filter Part Number ............... 11013-7044
Carburetor Model ............... Nikki 621266-A51
Throttle Bore Diameter, mm (in) ............... 26.0 (1.02)
Venturi Diameter, mm (in) ............... 20.0 (0.79)
Main Jet (L) ............... #110
Main Jet (R) ............... #114
Pilot Jet ............... #60
Pilot Screw Setting ............... 2-1/2 turns
Low Idle Speed (Carburetor), rpm ............... 1450
Low Idle Speed (Governor), rpm ............... 1550
High Idle Speed, rpm ............... 3600
Check Engine Oil Level ............... Every 10 hours
Change Engine Oil ............... Every 100 hours
Clean and Adjust Spark Plug ............... Every 100 hours
Replace Engine Oil Filter ............... Every 200 hours
Replace Primary Air Filter ............... Every 250 hours
Check Secondary Air Filter ............... Every 250 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 400 hours
Replace Secondary Air Filter ............... Every 500 hours
Cylinder Head Bolts, Nm (ft-lb) ............... 46 (34)
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)
Carburetor Mounting Nut, Nm (ft-lb) ............... 5.9 (4.4)
Governor Arm Clamp Nut, Nm (ft-lb) ............... 7.8 (5.8)
Intake Manifold Mounting Bolts, Nm (ft-lb) ............... 5.9 (4.4)
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