ENGLISH
34
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