operators_manual

1. Loosen the fuel primer pump knob
by rotating it counter-clockwise.
2. If equipped with a return fuel
blending valve, turn the valve to the
PRIME (closed) position.
3. Operate the priming pump by
moving the knob in and out for 150
seconds. During this time the
pumping resistance will increase,
but the full time is required to fully
prime the fuel system.
CAUTION
Operate priming pump at a maximum
rate of 30
strokes per minute to pre-
vent damage to pump.
4. Check for leakage at the fuel
filtercap. Tighten if necessary.
WARNING
Check the fuel filter for signs of leak-
age. Do not
smoke or allow an open
flame in close proximity. Failure to do
so could ignite a fire or cause an ex-
plosion which could result in serious
injury to you and/or bystanders. Fail-
ure to comply may result in death, per-
sonal injury, equipment or property
damage.
5. Start the engine and allow it to idle
for several minutes. Note that it
could take up to 15 seconds of
cranking for the engine to start. If
the starter is engaged for longer
than 20 seconds without starting,
additional priming pump actuation
may be necessary.
CAUTION
If the engine is cranked excessively
Starter Protection will
be triggered and
starter engagement will be restricted
for 10 minutes.
NOTE
Allowing the engine to idle for several
minutes
with
the
fuel blending valve in
the prime postition assists in purging
air from the fuel system.
6. Check the system for leakage while
idling. Then turn the engine of
f and
check the system again for
leakage.
7.
If the engine does not start within
this time, repeat steps two and
three until the engine starts. If the
engine still does not start, allow the
starter to cool down for at least 5
minutes before repeating the
procedure.
Fuel Blending Valve
12
Valve Position 1. Run
2. Prime
8. If equipped with a return fuel
blending valve, turn the bypass to
the RUN position.
ENGINE MAINTENANCE - Maintenance Procedures
62 Y53-1181-1K1 (08/2018)
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