Subaru Robin EX13 - Manual (Page 110)

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9-3 SUITING UP FOR STORAGE
Whether it’s the off-season or other circumstances prevent operating your engine-powered
equipment for more than 30 days, special steps need to be taken to protect the engine .
The first step in preparing an engine for storage is performing all of the suggested daily
maintenance items, such as cleaning the engine and checking the air filter . Next, run the engine
completely out of fuel or drain the fuel from the fuel tank . This is one of the most important steps
in preparing an engine for storage . Over time the volatile components of fuel evaporate and the
fuel becomes stale . Stale fuel makes starting the engine difficult, if not impossible, when the
machine is taken out of storage . Although it is usually suggested to drain the fuel, filling the tank
with new fuel and adding a fuel stabilizer is another option for preventing a stale situation .
To prevent corrosion in the cylinder bore during storage, remove the spark plug and inject a few
drops of oil through the spark plug hole . Gently pull the recoil starter knob two or three times
before the spark plug is placed back in the spark plug hole . Additionally, pull the recoil starter knob
until the resistance is felt, and leave it in that position . End the process with a final engine cleaning
before placing a protective cover over the unit and storing it in a dry place .
When returning the engine to service, ensure the oil viscosity is adequate for the temperatures
expected . Check the fuel lines and filter, making sure they are still secure and have not cracked .
Be sure that the throttle, choke and governor linkages move freely before starting the engine .
The initial start for an engine coming out of storage may be slow and there could be smoke for a
few minutes until any oil in the cylinder burns off . If the engine fails to start, check the spark plug
since it may have been fouled by the oil added to the cylinder before the machine was stored .
Clean or replace the spark plug before attempting to start the engine again .
Whether you’re preparing an engine for storage, adapting it to the weather or just keeping an eye
out for warning signs, giving an engine the attention it deserves will go a long way toward keeping
it out of trouble .