9
Lubrication and Maintenance
Idle Speed Adjustment
Start the engine outdoors and allow it to warm up
to normal operating temperature.
Move the throttle lever to the slowest running
position. Then turn the throttle stop screw with a
cross head screwdriver to obtain the correct idling
speed which is 1400 rpm, +200/-150 rpm.
Preparation for Storage
Flush the water pump with clean water to remove
any sediment. Remove the pump drain plug and
drain the pump thoroughly then refit the drain plug.
If storing with petrol in the fuel tank it is important
to choose a well ventilated area to reduce the
hazard of petrol vaporisation. Avoid areas with a
naked flame, such a gas pilot light, or spark-
producing electric motors.
Petrol will oxidise and deteriorate in storage, which
can leave gum deposits and cause hard starting.
The length of time it can be left in the fuel tank
before causing problems varies depending upon
the petrol blend and storage temperature. The air
in a partially filled tank promotes fuel deterioration
and this is accelerated by high temperature. For
lengthy storage it is best to drain the fuel tank into
a suitable container by setting the fuel valve to ‘on‘
and removing the sediment cup and the drain plug
from the carburettor. Reinstall the sediment cup
and drain plug after draining.
Store the unit in a dry location and cover to protect
from dust, etc. Avoid areas of high humidity which
promotes corrosion.
Engine will not start
•
Check if enough fuel in tank.
•
Check if fuel tap is on.
•
Check if fuel enters carburettor.
Remove drain plug at bottom of fuel bowl.
•
Check that oil level is not too low.
The low oil level protection system may be
activated - refer page 5.
•
Check that the engine switch is on.
•
Check if spark available at spark plug.
Remove spark plug, reconnect lead, earth plug
against engine block, turn engine switch on, pull
starter cord and see if spark jumps at plug gap.
•
If all above checks are OK and engine will still
not start contact your Silvan dealer.
Water Pump will not pump
•
Check that the pump is primed.
•
Check if suction hose filter is clogged.
•
Check that suction hose connector is tight.
•
Check that suction hose is not damaged.
•
Check that suction height is not too high.
•
If all above checks are OK and pump will still
not pump contact your Silvan dealer.
Trouble Shooting
IDLE SPEED ADJUSTMENT
Throttle Stop
Screw
