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TECHNICAL DATA 20
117
20.1
Engine
Design
1-cylinder 2-stroke engine, water-cooled, with reed
intake and exhaust control
Displacement
84.93 cm³ (5.1828 cu in)
Stroke
48.95 mm (1.9272 in)
Bore
47 mm (1.85 in)
Idle speed
1,400 … 1,500 rpm
Crankshaft bearing
1 grooved ball bearing / 1 roller bearing
Conrod bearing
Needle bearing
Piston pin bearing
Needle bearing
Pistons
Aluminum cast
Piston rings
1 rectangular ring
Engine lubrication
Mixed lubrication
Primary transmission
20:64 straight cut spur gear drive
Clutch
Multidisc clutch in oil bath/hydraulically activated
Transmission
6-gear transmission, claw shifted
Transmission ratio
1st gear
11:29
2nd gear
14:28
3rd gear
16:26
4th gear
19:26
5th gear
21:25
6th gear
20:21
Ignition
Kokusan 504
Spark plug
NGK BR9 ECMVX
Spark plug electrode gap
0.60 mm (0.0236 in)
Cooling
Water-cooled
Starting aid
Kick starter
20.2
Engine tightening torques
Screw, adjusting lever
M5x16
6 Nm (4.4 lbf ft)
Loctite
®
243™
Screw, clutch spring retainer
M5
6 Nm (4.4 lbf ft)
Screw, control lever
M5x12
6 Nm (4.4 lbf ft)
Loctite
®
243™
Screw, crankshaft speed sensor
M5
6 Nm (4.4 lbf ft)
Loctite
®
243™
Screw, exhaust control bearing
support
M5
6 Nm (4.4 lbf ft)
Loctite
®
243™
Screw, exhaust control cap
M5
5 Nm (3.7 lbf ft)
Screw, exhaust control cover
M5
4 Nm (3 lbf ft)
Screw, guide piece
M5x12
6 Nm (4.4 lbf ft)
Loctite
®
243™
Screw, ignition system/stator
M5
6 Nm (4.4 lbf ft)
Loctite
®
243™
Summary of Contents for TC 85 2020
Page 1: ...OWNER S MANUAL 2020 TC 85 Art no 3402330en ...
Page 2: ......