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Priming new fuel lines... Help!!!

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Change selector valve to plastic.

Not only do aluminum selector valves let Aluminum Oxide (permiated thru wall of valve) but get cleaned outside, then air-chucked, assumed clean, but is not. It
takes a 3/16" drill to clear the nipple artery pipes of the petroleum/aluminum oxide coagulate that is like bondo or liquid steel. Same can happen in a carb. Bills86e
 
End of Summer final post

OK, it's end of August, and the jet skis have been running all summer. And all my initial work resulted in fine running sea doos. These things are just hard to prime, but not too hard. We keep our skis on lake erie, and typically only use them on weekends.

After a week of sitting, here is our routine: Put the choke on full. Crank the motor till it almost catches (about 5 seconds). Turn off the choke, and start up the ski. Works every time.

Changing all the fuel lines takes a little more than an hour, and that includes hauling out the gas tank (the first jet ski was so successful, I decided to do the other one as well).

So, thanks again to everyone for the advice.
 
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