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250 1998
KTM 250 1998 User Manual
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ā Notices ā
42
44
Table of Contents
1 1 General 2 3
2
Table of Contents
2
General
3
Bleeding the Cooling System
5
Definitions
6
Checking the Setting of the TVC System
7
Special Tools
8
Removing Engine / Refitting Engine
10
3.0 Dismantling Engine
12
Cylinder Head, Cylinder, Piston
13
Drain Gear Oil
13
Clutch Cover
14
Primary Drive
14
Ignition (Kokusan)
15
Kickstarter
15
Clutch Release Shaft
16
Engine Sprocket
16
Ignition (SEM)
16
Intake Flange, Reed Valve Housing
16
Crankshaft
17
Shift Mechanism, Transmission
17
4.0 Servicing on Individual Components
18
Servicing on Individual Components
18
Left Housing Half
19
Crankshaft
21
Piston
21
Piston Ring End Gap
21
Nikasil Coating of Cylinder
23
Exhaust Control in Clutch Cover
23
Preassembly of Clutch Cover
23
Reed Valve Housing, Intake Flange
23
Kickstarter
24
Transmission
25
Assembly of Countershaft
25
Clutch
26
Shift Mechanism
27
Preassembly of Shift Shaft
27
Ignition (Kokusan)
28
Spark Plug (NGK BR 8 ECM)
28
Check Stator and Pulse Generator (Kokusan)
28
Ignition (SEM)
29
Spark Plug (NGK BR 8 ECM)
29
Check Stator (SEM)
29
5.0 Engine Assembly
30
Engine Assembly
30
Assembly of Engine Housing
32
Clutch Release Shaft
32
Kickstarter
33
Primary Drive, Clutch
33
Clutch Cover
34
Piston and Cylinder
35
Clutch Discs, Pressure Cap
34
Cylinder Head
36
Mounting Ignition (Kokusan)
37
Mounting Ignition (SEM)
37
Adjusting Ignition Point (SEM)
38
Filling in Gear Oil
38
Starting Lever/Foot Shift Lever
38
Electrical
40
Checking the Voltage Regulator Tympanium
41
Checking the Voltage Regulator-Rectifier Shindengen
41
Checking the Voltage Regulator Kokusan
41
Checking the Capacitor
42
Ignition Coil Sem/Kokusan
42
CDI Unit
42
Trouble Shooting
44
Technical Data / Maintenance Schedule
48
Wiring Diagram
54
4
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KTM 250 1998 Specifications
General
Displacement
249 cc
Engine Type
Single cylinder, 2-stroke
Bore x Stroke
66.4 mm x 72 mm
Cooling System
Liquid cooled
Lubrication
Premix (oil in fuel)
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