gas milage on johnson200

rovkyman57

Cadet
Joined
Apr 3, 2011
Messages
8
i have a 1987 limited edition johnson 200hp my boat has a 30gal tank is that normal or is this tank way to small 1978 manatee 21ft . how many miles should i get out of this set up. thanks for all inputs
 

wilde1j

Vice Admiral
Joined
Apr 15, 2002
Messages
5,964
Re: gas milage on johnson200

At WOT, your motor will burn ~ 20 gph.
 

Will Bark

Lieutenant
Joined
Aug 1, 2010
Messages
1,470
Re: gas milage on johnson200

Depending on your load in the boat don't expect more than 1.5 miles per gallon on a combination of cruise and WOT.
 

tx1961whaler

Vice Admiral
Joined
May 31, 2008
Messages
5,197
Re: gas milage on johnson200

For trip planning purposes, 10 gallons out, 10 gallons in, 10 gallons reserve. At 1.5 mpg, a 15 mile trip out and back.
You won't really know your fuel consumption until you run the boat and measure it.
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,555
Re: gas milage on johnson200

A 30 gal tank is pretty small for a 21 footer. My 21' has a 63 gal tank, and my neighbors is 85 gal. However, if you only plan short trips, you can work it.
 
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