over hear, thay run a 6gal (us gal) about 25lts. if you keep it flat out, you can burn it up in just over an hour, messin around 2 1/2- 3 hrs like craigdavis said.
prop gard is a metal ring bolted to the Lower unit, runs around the prop, drags on the hull, slows it down, thinkin it gards it from goin fast, best i can see.
:^
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