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General Specifications
Engine
Engine Type 2-stroke, Piston reed valve, Liquid cooled
Displacement 99 cc
Bore X Stroke 52.5 x 45.8 mm
Compression Ratio 9.6:1 (low speed) 8.8:1 (high speed)
Carburetor Keihin PWK28
Lubrication System Premix gasoline & oil
Ignition System CDI with Digital Advance
Oil 2-stroke racing oil
Coolant 50% water /50% ethylene glycol base antifreeze
—Capacity 0.67 L
Transmission
Clutch Type Wet, Multi-disc, Manual
Transmission 6-speed, Constant mesh, Return shift
Shift Pattern (Bottom up) 1-N-2-3-4-5-6
Gear Ratios —1st 2.54 (33/13)
—2nd 1.89 (30/16)
—3rd 1.50 (27/18)
—4th 1.25 (25/20)
—5th 1.09 (24/22)
—6th 0.96 (22/23)
Primary Ratio 3.40 (68/20)
Final Ratio 3.92 (51/13)
Overall Ratio (Top Gear) 12.76
Chassis
Wheelbase 1,290 mm
Seat Height 870 mm
Ground Clearance 380 mm
Dry Weight 68 kg (149.9 lb.)
Fuel Tank Capacity 5.5 L (1.95 gal.)
Rake 27°
Tire Size —Front 70/100-19
—Rear 90/100-16
Brake Type —Front Single disc
—Rear Single disc
Brake Size —Front 202
—Rear 150
Suspension Type —Front Telescopic Inverted Fork
—Rear Uni-Trak Swingarm
Wheel Travel —Front 275 mm
—Rear 275 mm
Model Identification
Year & Model ‘05 KX100-D5
Color Lime Green (777)
VIN Range JKAKXTDC ✓ 5A015001
—
Engine No. Range KX100CE000001—
Engine No. Location RH side crankcase, below carburetor
Tuning Specifications
Engine
Spark Plug NGK R-6252K-105
—Gap 0.7-0.8 mm
Ignition Timing 13° at 12,000 rpm
Transmission Oil SE Class SAE 10W30 or 10W40
—Capacity 0.7 L
Compression Pressure 171 psi
Chassis
Fork Oil Kayaba 01 SAE 5W
—Capacity 317-325 cc
Tire Pressure (Cold)
—Front 15 psi
—Rear 15 psi