or worn components repaired or replaced by an authorized
t
echnician.
4. Replacement parts must match the original. Use manufacturer
recommended parts when possible.
5. Disconnect the spark plug lead and keep it away from the spark
plug during maintenance and repairs.
6. Maintain the engine’s label and name plate. These carry important
information. If unreadable or missing, contact Princess Auto Ltd.
for replacements.
WARNING! Only qualified service personnel should repair
t
he engine.
MAINTENANCE SCHEDULE
This sc
hedule applies to normal operating conditions. If you operate
your engine under severe conditions, such as sustained high-load or
high-temperature operation or use in unusually wet or dusty conditions,
consult a qualified technician for recommendations applicable to your
individual needs and use.
FUEL RECOMMENDATIONS
NOTICE! Do not use unapproved gasoline, such as E85.
Do no
t mix oil in gasoline or modify the engine to run on
alternate fuels. This can damage the engine components.
To protect the fuel system from gum formation, mix a fuel
stabilizer into the fuel.
This engine is certified to operate on unleaded gasoline with a
minimum of 87 octane/87 AKI (91 RON). Use gasoline without ethanol
or similar alcohol based additives. Gasoline with up to 10% ethanol
(gasohol) or up to 15% MTBE (methyl tertiary butyl ether) may be used
if required.
If the engine is routinely operated at altitudes over 5,000 ft (1,524
meters), it will be necessary to have a qualified technician modify the
engine for increased performance. Fuel should be a minimum of 85
octane/85 AKI (91 RON) to prevent decreased performance.
The emissions control system for this engine is EM (Engine
Modifications).
V1.1 V-TWIN GAS ENGINE 8996977
Page 13 Assistance available at www.princessauto.com or 1-800-665-8685
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