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The most important thing on the HPDI motors which the 4 strokes are is to get treated gas into the VST tank. Remove the big screw on the tank and drain the gas. Put gas with an over mixture of Startron and Stabil in your external water separator... you do have one don't you!
You should also be putting a new filter on at this time.
Add Stabil and Startron to your fuel tank It would be good if you did this before your last run so it mixes in...
Run the engine for 5-10 minutes but shut off if your temp alarm buzzes...
Change your engine oil and filter... we use the Quicksilver 4 stroke OB oil syn-blend...
Change your lowerunit oil... we use the quicksilver high performance lube
Spray engine with 656 corrosive spray... WD40 will not displace water...
Leave your engine all the way down to drain than no more than about 5-10 degrees for the winter...
Remove your battery...
I could do this total service for you at my new shop in cohasset foe $175 including all oil and filters teaching you at the same time...
Last edited by MTC; 11-11-2008 at 04:10 AM..
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