TOHATSU V20E - Page 77

63
TROUBLESHOOTING
Trouble
Cause
Vacuum pressure defective Air leaking Water suction failure Insufficient ,water discharge Floodlight, Gauge lamp, do not work
Action
Caused by suction Caused by Pump unit Caused by Playpipe Caused by Engine unit
Compression
Piston, piston ring
or cylinder
excessively worn
●
Correct or replace.
Carbon deposition
in the combustion
chamber
●
Clean out.
Suction
Suction height too
high or length too
long
●
Make it pump location to
nearer and/or lower
position.
Suction hose end is
not in water
● ● ● ●
Put the end of suction
hose below 300mm
(11.8 in) of the surface of
the water.
Suction hose
coupling loose or
gasket defective
● ● ● ●
Clean out a gasket and
tighten securely.
Replace a gasket if
necessary.
Suction hose
strainer clogged
with dead leaf or
waste etc.
● ●
Clean out.
Suction hose
cracking or Lining
peeling off
● ● ● ●
Repair or replace.
15
１
１
２２
３３
４４
５５
６６
７７
８８
９
９
10
10
1111
1212
13
14
15
16
17
18
13
14
15
16
17
18