Stopping The Engine; Low Pressure Shutdown System; Restarting The Engine; Maintenance Schedule - Guardian GTV/GTH-990/760 OHVI series Owner's Manual

7. Move the choke lever to the OFF POSITION by
pushing it in or move choke control to RUN position.
Allow engine to warm up for two minutes..
NOTE: for cold weather starting: make sure the proper engine
oil is being used (see page 3).

STOPPING THE ENGINE

1. Remove load from engine.
2. Move throttle to SLOW position.
3. While still running, allow engine to cool for two minutes.
4. Turn key to OFF position.
5. Close fuel shut-off valve (if equipped).
LOW PRESSURE SHUTDOWN SYSTEM (OPTIONAL)
The engine is equipped with a low oil pressure sensor that
shuts down the engine automatically when the oil pressure
drops below 8 psi. If the engine shuts down by itself and the
fuel tank has enough gasoline, check the engine oil level.
INITIAL STARTUP
A delay built in the shutdown system allows oil pressure to
build during starting. The delay allows the engine to run for
about 10 seconds before sensing oil pressure.
SENSING LOW PRESSURE
If the system senses low oil pressure during operation, the
engine shuts down. The engine will not continue to run until 8
psi of oil pressure is reached.

RESTARTING THE ENGINE

If you try to restart the engine within (five) 5 seconds after it
shuts down, the engine may NOT start. The system needs 10
seconds to reset.
NOTE: If you restart engine after a shutdown and have not
corrected the low oil pressure, the engine will run for
about 10 seconds as described above, and then it will stop.
GTV/GTH - 990/760 OHVI SERIES ENGINES

MAINTENANCE SCHEDULE

The owner/operator is responsible for making sure that all
periodic maintenance tasks are completed on a timely basis;
that all discrepancies are corrected; and that the equipment is
kept clean and properly stored. Never operate a damaged or
defective engine.
MAINTENANCE SCHEDULE
Check Oil Level
Change Oil
Change Oil Filter
Service Air Filter
Replace or Clean
Spark Plug
Clean Spark
Arrestor Screen
Adjust Valve
Clearance
NOTE 1: Change oil and filter after first 8 hours of operation and then
every 100 hours thereafter. Change sooner when operating under a heavy
load or in a dusty or dirty environment or in high ambient temperature.
NOTE 2: Service more often when operating in dirty or dusty conditions.
Replace standard filter element (Figure 7) every 50 hours. Replace canister
style filter (Figure 8) every 500 hours.
CAUTION: Disconnect the spark plug wires from
the spark plugs, and place the wires where they
cannot come in contact with the spark plugs before
working on this engine.
Every Every
8 Hours 25 Hours
or Daily Season
•
Foam
Pre-Filter
if equipped
OPERATION
Every Every
50 Hours 100 Hours
Season Season
Note 1
Note 1
Filter
(Note 2)
•
•
•
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