18
B
A
Setting the pressure
A. Phillips screwdriver
B. Pressure setting screw
Spark plug
The gap on the spark plug should be 1.9-2.2 mm.
Air pump
Check during maintenance that the air pump is correctly
fitted to avoid low air pressure and/or air leakage.
A. Pump blade
B. Pump cover
C. Air intake filter
D. Pressure plate
E. Safety grille, air intake
F. Air outlet filter
G. Impeller
H. Coupling
Aligning the pump piston/pump housing
The four pump blades are slotted into the impeller. The gap
between the impeller and pump housing should be 0.06–
0.08 mm to ensure sufficient air pressure.
A. Pump housing
B. Gap 0.06–0.08 mm
C. Impeller
D. Screw
E. Pump bladesr
C
D
E
B
A
C
D
E
F
H
H
G
G
B
A
