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1984 Johnson 150 idles great but low power in the water
drush777
#21 Print Post
Posted on 07/22/19 - 10:33 AM
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Posts: 7
Comments: 1
Joined: 05/13/19

Thanks BiggieFl. Appreciate.

Will update once a get them cleaned.

 
JRP
#22 Print Post
Posted on 07/22/19 - 3:50 PM
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Posts: 755
Comments: 2
Joined: 08/29/14

drush777 wrote:
I recently purchased a 1983 Outrage that has a 1984 Johnson 150HP. The engine idles great with the muffs on, and pretty good at dock. When I put the engine at load seems like very low RPM. After an hour of running the boat will stall / die. Have to wait an hour or so before it will fire up and I can limp back to the dock. Any suggestions out there?

This my first ever boat, so I have basically no experience on the mechanical aspects. Wondering if the exhaust is clogged, or possibly a fuel delivery problem. The later doesn't make as much sense though as the unit runs great out of the water.

Any help / direction greatly appreciated.



drush777 wrote:

Little update as I've taken it out twice since first posting. Top speed seems to be about 7 knots, this seems under powered to me but I have no other reference to compare it to.....


How does this performance compare to what you experienced during the pre-purchase survey and sea-trial?

What model Boston Whaler are we discussing?


19 Outrage II (1992)
 
Bob Moravek
#23 Print Post
Posted on 07/23/19 - 10:20 AM
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Posts: 42
Comments: 0
Joined: 03/11/08

my friend had a similar problem with a Yamaha on his 13 ft whaler and it turned out to be the fuel-pump

 
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