Yamaha outboard conversion to LPG

Discussion in 'Outboards' started by sailor305, May 23, 2012.

  1. missinginaction
    Joined: Aug 2007
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    missinginaction Senior Member

    I work part time for a bus company. We have a number of propane buses that we acquired as part of a government program. I drive one every day. They get about 4 miles per gallon versus 8 or so for a diesel powered bus. LPG is a clean fuel but not very efficient. For a boat I'd stick with gas or diesel. As for the original post, as other have pointed out the 9 pound tank mentioned is more likely a 90 lb tank. BTW, I use a Yamaha t9.9 on my small cruiser as a trolling motor and slow cruising power source as well At about 4 knots the little Yamaha burns fuel at a rate of 8 miles per gallon.

  2. fallguy
    Joined: Dec 2016
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    fallguy Senior Member

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