KTM 125 LC2 1998, Owner'S Handbook Manual

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ENGLISH
28
Design single-cylinder, two-stroke Otto engine with balancer shaft, liquid-cooled
Control membrane inlet into crankcase, exhaust control by means of servomotor and roller
Displacement 124.8 ccm
Bore / stroke 56 / 50.7 mm
Compression ratio 12.5 : 1
Fuel unleaded fuel with a least RON 91
Engine lubrication separate lubrication
Engine oil Shell Advance VSX 2 or 2-stroke oil for a mix ratio 1 : 50 and separate lubrication
Crankshaft bearing 2 ball bearings
Conrod bearingr needle bearing
Piston pin bearing needle bearing
Piston cast light alloy
Piston rings 1 half keystone ring, 1 rectangular ring
Primary drive helical gears 22:73 Z
Clutch multi disk clutch in oil bath
Transmission 6-speed shift dog operated
Transmission reduction 1st gear 34:12 4th gear 24:21
2nd gear 30:16 5th gear 22:23
3rd gear 24:17 6th gear 18:22
Gear oil 0,75 liter (0,2 US gallons) engine oil SAE 10W30 (Shell Advance Ultra)
Ignition system breakerless CDI ignition system with digital ignition timing
Generator 12V / 95W
Spark plug NGK BR9ES (NGK BR8ES)
Electrode distance 0.7 mm ± 0.1 mm (0.03 in)
Cooling system liquid cooling, permanent circulation of cooling liquid effected by water pump
Cooling liquide 0.8 Liter (0,2 US gallons), 40% antifreezer, 60% water, at least -25° C (-13° F)
Carburetor slide carburetor
Air filter wet foam type air filter insert
Oil tank tank content: 1,3 liter (0,34 US gallons)
80 kmh with KAT 100 kmh with KAT 100 kmh without KAT
Type Dell’Orto PHBH 28 VS Dell’Orto PHBH 28 VS Dell’Orto PHBH 28 VS
Carburettor setting number 4171 4171 4175
Main jet 132 132 132
Needle jet GM1 264 GM1 264 GM1 264
Idling jet 50 50 52
Starting jet 70 70 70
Jet needle 83 83 83
Needle position from top 3 3 3
Mixture adjusting screw open 4 turns 4 turns 4 turns
Throttle slide 40 40 30
BASIC CARBURETOR SETTING 125 LC2
TECHNICAL DATA – ENGINE KTM 125 LC2 ‘98