Zedder Enterprises Zedder Enterprises

70 G4TR 100 "Trail Boss"

Kawasaki Part Cross Reference Software contains information for this bike.
Model Identification
Color Pearl Candytone Red
Frame serial # G4-000001 - 014459
Engine serial # FG4E000001 - 014461 found on LH top crankcase below air intake duct.
Cylinder Mark 99CC found on LH side
Engine Type 2 stroke, single cylinder, rotary disc valve, air cooled.
Displacement 99cc
Bore X Stroke 49.5 X 51.8 mm
Compression Ratio 7.0:1
Maximum HP 11.5 at 8000 rpm
Maximum torque 1.12 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 (with 2-speed sub transmission, quick change by lever on sub transmission cover) Crankshaft Rotation Counterclockwise from ignition (LH) side
Shift Pattern N-1-2-3-4-5 bottom up Cylinder Material Aluminum alloy with ferrous sleeve
Gear ratios High Range Low Range Fuel Min 91 Research/87 average oct, unleaded OK
  1st 2.92 (35/12) 4.96 Oil 2-stroke oil for air cooled engines
2nd 1.76 (30/17) 3.00 Tuning Specifications
3rd 1.30 (26/20) 2.21 Engine
4th 1.09 (24/22) 1.86 Cylinder Head Torque Nuts Cross-tighten: 2.2 kg-m
5th 0.96 (23/24) 1.63 Compression Pressure 9.8 kg/cm² STD 6.9 kg/cm² service limit
Primary Ratio 3.52 (74/21) Spark Plug NGK B7HS 0.6 - 0.7 mm gap
Sub transmission Ratios 1.00 1.70 (22/24 x 26/14) Ignition Timing 20° BTDC (1.96mm) - Flywheel mark aligns with crankcase mark at 12 o'clock position
Final Ratio 2.80 (42/15) 4.77 (1.70 x 2.80) Point Gap 0.30 - 0.40 mm
Overall Ratio (Top Gear) 9.46 16.07 Air Screw 1¾ turns out
Chassis Idle Speed Lowest stable RPM (usually 1400 ± 100 RPM)
Wheelbase 1270 mm Transmission Oil SE Class SAE 10W30 or 10W40
Ground Clearance 239 mm - Capacity 0.7 liter
Dry Weight 84 kg - Level Motorcycle vertical, off side stand, between lines on dip stick screwed in all the way
Fuel Tank Capacity 8.7 liters Sub transmission Oil Same as transmission oil
Tire Size Front 3.00-18 4PR Tube-Type - Capacity .09 liter
Rear 3.00-18 4PR Tube-Type - Level Motorcycle vertical, off side stand, to bottom edge of filler plug hole
Brake Type Front Mechanical Drum (Leading/Trailing) Chassis
Rear Mechanical Drum (Leading/Trailing) Fork Oil SAE 10W
Brake Size Front 110 X 30 mm - Capacity 170 cc dry
Rear 110 X 30 mm - Level ?
Suspension Stroke Front 115 mm Tire Pressure Front 1.55 kg/cm² cold
Rear 90 mm Rear 1.97 kg/cm² cold
  Drive Chain Slack About 20 mm (on side stand, tightest point, STD)


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Zedder Enterprises

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