Fig 11.
2.Dusting:
Regulate the discharge rate by shifting the dust rod’s position
in the three holes of the rock-arm. See Fig12:
Fig 12.
TROUBLES AND REMEDIES:
..... ........................................................................................
1. Engine starts difficultly or can not start:
Check if the sparking plug has sparked-over. Screw down the sparking plug; put the side pole to touch the
cylinder. Full the starter and watch between the poles of sparking plug whether there are sparks. Pull the
starter carefully; do not touch the metal part of sparking plug for prevention of getting an electric shock.
TROUBLE
CAUSE
REMEDIES
No
flash
Spark plug
Firing device wetted
Dry it out
Carbon lay down on the
sparking plug
Clean the carbon
The clearance between poles of
sparking plug is too big or too small
Adjusting the clearance
at 0.6—0.7mm
This insulation of sparking plug
damaged
Change sparking plug
Poles burned
Change sparking plug
Magneto
Wrapping of wire damaged
Change or remedy
Insulation of coil is broken
Replace
Wire of coil is broken
Replace
Electronic firing device damaged
Replace
Normal
Compression ratio is fine &
fueling normally
Fuel sucked in is excessive
Reduce the fuel
Bad quality fuel , mixed with water or
dirty
Change the fuel
Fueling is normal but
compressing ratio is bad
Cylinder and piston ring wore and
tore
Change cylinder and
piston ring
Spark plug is loosen
Tighten
OPENING
DISCHARGING (l/min)
1
1
2
1,5
3
2
4
3