22 TECHNICAL DATA 123
22.1 Engine
22.1.1 All 125 models
Design 1-cylinder 2-stroke engine, water-cooled, with reed intake and
exhaust control
Displacement 124.8 cm³ (7.616 cu in)
Stroke 54.5 mm (2.146 in)
Bore 54 mm (2.13 in)
Crankshaft bearing 1 grooved ball bearing/1 roller bearing
Conrod bearing Needle bearing
Piston pin bearing Needle bearing
Pistons Aluminum cast
Piston rings 2 half keystone rings
X (upper edge of piston to upper edge of cylinder) 0… 0.10 mm (0… 0.0039 in)
Z (height of control flap) 43.7 mm (1.72 in)
Primary transmission 23:73
Clutch Multidisc clutch in oil bath/hydraulically activated
Gearbox 6-gear, claw shifted
Transmission ratio
1st gear 12:33
2nd gear 15:31
3rd gear 17:28
4th gear 19:26
5th gear 21:25
6th gear 20:20
Ignition Contactless controlled fully electronic ignition with digital igni-
tion adjustment, type Kokusan
Ignition point (BTDC) 1.4 mm (0.055 in)
Spark plug NGK BR9 ECMVX
Spark plug electrode gap 0.60 mm (0.0236 in)
Starting aid Kick starter
22.1.2 All 200 models
Design 1-cylinder 2-stroke engine, water-cooled, with reed intake and
exhaust control
Displacement 193 cm³ (11.78 cu in)
Stroke 60 mm (2.36 in)
Bore 64 mm (2.52 in)
Crankshaft bearing 1 grooved ball bearing/1 roller bearing
Conrod bearing Needle bearing
Piston pin bearing Needle bearing
Pistons Aluminum cast
Piston rings 2 rectangular rings
X (upper edge of piston to upper edge of cylinder) 0… 0.10 mm (0… 0.0039 in)
Z (height of control flap) 47 mm (1.85 in)
Primary transmission 23:73
Clutch Multidisc clutch in oil bath/hydraulically activated
Gearbox 6-gear, claw shifted
Transmission ratio
1st gear 12:33
2nd gear 15:31
3rd gear 17:28
4th gear 19:26
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