20 Technical Data; Engine; Engine Tightening Torques - Husqvarna TC 250 2022 Owner's Manual

20 TECHNICAL DATA

20.1
Design
Displacement
Stroke
Hole
Exhaust control - setting measurement
Crankshaft bearing
Conrod bearing
Piston pin bearing
Piston
Piston rings
X distance (upper edge of piston to upper edge of
cylinder)
Z distance (height of control flap)
Primary transmission
Clutch
Transmission
Transmission ratio
first-gear
second-gear
third-gear
fourth-gear
fifth-gear
Ignition system
Spark plug
Spark plug electrode gap
Starting aid
20.2
Screw, inner membrane sheets
Screw, membrane support plate
Screw, outer membrane sheets
Screw, angle lever, exhaust con-
trol
Screw, bearing retainer
Screw, clutch spring retainer
Screw, crankshaft speed sensor
Screw, exhaust control bearing
support
Screw, exhaust control cap
Screw, exhaust control cover
120

Engine

Engine tightening torques

EJOTDELTA PT
EJOTDELTA PT
EJOTDELTA PT
M5
M5
M5
M5
M5
M5
M5
1-cylinder 2-stroke engine, water-cooled, with reed
intake and exhaust control
249 cm³ (15.19 cu in)
72 mm (2.83 in)
66.4 mm (2.614 in)
+ 0.2 + 0.008
1.8 mm (0.071 in)
− 0 − 0
1 grooved ball bearing/1 roller bearing
Needle bearing
Needle bearing
Cast aluminum
2 half keystone rings
0 ... 0.10 mm (0 ... 0.0039 in)
49.0 mm (1.929 in)
26:73
Multidisc clutch in oil bath/hydraulically activated
5-gear transmission, claw shifted
14:28
16:26
18:24
21:24
22:21
Contactless controlled fully electronic ignition with
digital ignition adjustment
NGK BR 8 ECM
0.60 mm (0.0236 in)
Kick starter system
®
35x25 1 Nm (0.7 lbf ft)
®
30x12 1 Nm (0.7 lbf ft)
®
30x6 1 Nm (0.7 lbf ft)
6 Nm (4.4 lbf ft)
6 Nm (4.4 lbf ft)
6 Nm (4.4 lbf ft)
6 Nm (4.4 lbf ft)
6 Nm (4.4 lbf ft)
5 Nm (3.7 lbf ft)
4 Nm (3 lbf ft)
®
Loctite 243™
®
Loctite 243™
®
Loctite 243™
®
Loctite 243™