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Originally Posted by randlemanboater
Well the Johnzuki 140 works great on the V-20.
I got a top speed of 35 mph @ 6400 rpm, which means I need a 20 pitch prop instead of a 19p. *(Recommended wot rpm is 5800-6200) *I had 25 gal of gas, 2 adults, 3 kids, lunch, 2 tools boxes, 1 battery on board.
4700 rpm was 25 mph, 20 mph was 3900.
It got out of the hole like a rocket and got better that 5 mpg. *I ran about 40 miles and used a little over 7 gal.
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With just me and 15 gal of gas it ran 40 mph (GPS) at around 6500 rpm.....I am guessing on the rpm cause my tach only goes to 6K. I wonder where the rev limiter kicks in on this motor.
Anyway, drive it like you stole it, or rented it.
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Sold - 1984 V-20 Cuddy with a 2003 Johnson 140 hp gas sippin 4-stroke.
1995 Ranger 250C with a 2015 Suzuki 300 hp 4-stroke.