2000 johnson 70 hp

cds11

Seaman Apprentice
Joined
Sep 2, 2012
Messages
37
runs good, idles good, has good compression 150 psi but seems to use a lot of fuel. is this common for these? its on a 24 foot pontoon.
 

boobie

Supreme Mariner
Joined
Nov 5, 2009
Messages
20,826
It will use 10% of the horse power at WOT which is 7 gallon per hr. What are you using ??
 

cds11

Seaman Apprentice
Joined
Sep 2, 2012
Messages
37
I'm not sure how to measure it exactly but I know I'm using more than 7 gallons per hour and I don't even run at wot. wot is 5500 and I keep it under 5. my closest guess would be twice that amount.
 

flyingscott

Fleet Admiral
Joined
Apr 8, 2014
Messages
8,202
Pontoons are not the most fuel efficient hulls. You could try dropping a couple inches in pitch on the prop as WOT on that motor should be 6000 rpm.
 
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