Sachs Bikes MadAss Reparaturanleitung Seite 109

CYLINDER HEAD / VALVES
Install the cam chain tensioner push rod (1) and spring (2).
Install the left crankcase cover.
Install a new gasket (3) and the left side cover (4).
Adjust the valve clearance.
Install the spark plug (5).
Tighten the left side cover using the 6 mm bolt (6).
CYLINDER COMPRESSION
Warm up the engine.
Stop the engine and remove the spark plug (5).
Insert the compression gauge.
Move the choke lever (7) downward.
Open the throttle grip fully.
Crank the engine with the kick starter (8).
NOTE
Crank the engine until the gauge reading stops rising.
COMPRESSION PRESSURE: 10-12 kg/cm
Low compression can be caused by:
- Improper valve adjustment
- Valve leakage
- Worn piston ring or cylinder
High compression can be caused by:
- Carbon deposits in combustion chamber or on the piston
crown.
106
4
2 (142-171 psi)
1
2
5
8
3
6
7
5