
Operating Manual ULPOWER UL390i UL390iS UL390iSA
MO 390A01 Revision No: 2 Date: 2014-09-15 Page: 18 of 22
Note: If temperatures are still at the high end of the limits, permit the engine to cool down by
idling the engine for a few minutes before shut-down.
Engine storage
For long out of service periods we recommend the following to protect the engine against corrosion.
- Let engine run until warm, then change oil
- Remove the air inlet filter and insert approx 30 cm3 (1 Fl oz) of corrosion inhibiting oil into
the inlet collector with the engine running at increased idle speed
- Shut off engine
- Close all openings on the cold engine, like exhaust end pipe, air intake (throttle), venting
tube.
- Spray all steel external engine pars with corrosion inhibiting oil
- Store the engine as dry as possible
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