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Engine CR-85
Design Liquid cooled single cylinder two-stroke engine with reed valve intake
Displacement 84,926 ccm
Bore/stroke 47 / 48.95 mm (1.85/1.93 in)
Fuel SUPER fuel, research octane no 95, mixed with high grade two-stroke oil
Oil/gasoline ratio 1:40 - 1:60 when using high grade two-stroke oil (e.g. Motorex 2T Crosspower),
when in doubt, please contact our importer
Lubrication mixture lubrication
Crankshaft bearing deep-groove ball bearing, cylinder roller bearing
Connecting rod bearing needle bearing
Piston pin bearing needle bearing
Piston rings 1 compression ring
Primary drive straight cut spur gears, 19:66 t
Clutch multiple disc clutch in oil bath, hydraulic operated (Motorex clutch fluid 75)
Transmission 6 speed, claw actuated
Gear ratio 1
st
gear 11 : 29
2
nd
gear 14 : 28
3
rd
gear 16 : 26
4
th
gear 19 : 26
5
th
gear 21 : 25
6
th
gear 20 : 21
Transmission oil 0.35 liter (0.0924 USgal) Motoröl Motorex Topspeed 4T 15W50
Ignition system Moric Digital 2M1
Spark plug NGK BR 10 ECMVX
Electrode gap 0.60 mm (0.0236 in)
Carburetor flat-slide carburetor, carburetor see table
Coolant 1 liter (0.264 Usgal), mixture coolant : water = 2 : 1, at least -25° C (-13° F)
Air filter wet foam type air filter insert
TECHNICAL SPECIFICATIONS - ENGINE 85 SX 2003
Carburetor Kehin PWK 28
Main jet 118
Needle jet 2.6
Idling jet 45
Jet needle N5HG
Needle position from top III
Throttle valve 3.5
Starting jet 62
Air adjustment screw open 1.5
BASIC CARBURETOR SETTING
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