Zedder Enterprises Zedder Enterprises

71 G3SS-A "90S Bushmaster"

Kawasaki Part Cross Reference Software contains information for this bike.
Need photo Model Identification
Color Light Yellow
Frame serial # GA-268327 - 306527
Engine serial # FGAE268738 - 280834 found on LH top crankcase below air intake duct.
Cylinder Mark 89CC found on LH side
Engine Type 2 stroke, single cylinder, rotary disc valve, air cooled.
Displacement 89cc
Bore X Stroke 47.0 X 51.8 mm
Compression Ratio 7.0:1
Maximum HP 10.5 at 8000 rpm
Maximum torque .98 kg-m at 7000 rpm
Carburetor Mikuni VM19SC
Lubrication System Superlube (port injection)
Transmission Ignition System Flywheel magneto
Clutch Type Wet, multi-disc, Manual Ignition Advance Fixed
Transmission 5-speed,constant mesh, return shift Crankshaft Rotation Counterclockwise from ignition (LH) side
Shift Pattern N-1-2-3-4-5 bottom up Cylinder Material Ferrous
Gear ratios 1st 2.92 (35/12) Fuel Min 91 Research/87 average oct, unleaded OK
  2nd 1.76 (30/17) Oil 2-stroke oil for air cooled engines
  3rd 1.30 (26/20) Tuning Specifications
  4th 1.09 (24/22) Engine
  5th 0.96 (23/24) Cylinder Head Torque Nuts Cross-tighten: 2.2 kg-m
Primary Ratio 3.52 (74/21)
Final Ratio 2.64 (37/14) Compression Pressure 9.8 kg/cm² STD 6.9 kg/cm² service limit
Overall Ratio 8.92 top gear Spark Plug NGK B8HCS or B8HS 0.6 - 0.7 mm gap
Chassis Ignition Timing 20° BTDC (1.96mm) - Flywheel mark aligns with crankcase mark at 12 o'clock position
Wheelbase 1150 mm Point Gap 0.30 - 0.40 mm
Seat Height 770 mm Air Screw 1½ turns out
Ground Clearance 160 mm Idle Speed Lowest stable RPM (usually 1400 ± 100 RPM)
Dry Weight 83 kg Transmission Oil SE Class SAE 10W30 or 10W40
Fuel Tank Capacity 8.6 liters - Capacity 0.7 liter
Tire Size Front 2.75-18 4PR Tube-Type - Level Motorcycle vertical, off side stand, wait 5 min, between lines on dipstick, screwed in all the way
  Rear 2.75-18 4PR Tube-Type Chassis
Brake Type Front Mechanical Drum (Leading/Trailing) Fork Oil SAE 30
  Rear Mechanical Drum (Leading/Trailing) - Capacity 130 cc dry
Brake Size Front 110 X 30 mm - Level 331 ± 4 mm (Fork extended, spring installed)
  Rear 110 X 30 mm Tire Pressure Front 1.60 kg/cm² cold
Suspension Stroke Front 90 mm   Rear 2.00 kg/cm² cold
  Rear 65 mm Drive Chain Slack About 20 mm (on side stand, tightest point, STD)


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Zedder Enterprises

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