Troubleshooting Rammer Repair
128 wc_tx000291gb.fm
9 Troubleshooting
9.1 Engine Hard to Start
(1)
Does not apply to the DS 720 or DS 70 Rammer.
Problem / Symptom Reason / Remedy
The air filters are dirty. Clean or replace the filters.
There is too much oil in the
fuel
(1)
.
Drain the fuel from the tank and fill it with new mixed
fuel.
The spark plugs are fouled
(1)
.
Clean or replace the spark plug. Measure the electrode
gap.
Incorrect spark plug
(1)
.
Must use resistor-type spark plug to operate correctly.
The muffler or exhaust port is
dirty.
Remove and clean the muffler. Clean the exhaust port.
The crankshaft seals are leak-
ing.
Check/replace the seals (see the WM 80 Engine
Repair Manual).
The fuel mixture adjustment is
incorrect
(1)
.
Set the adjusting screw and clean the fuel jets.
The engine compression is
low.
Replace the piston rings (see the WM 80, WM 90 or
Yanmar Engine Repair Manual).