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Go Back   SailNet Community > On Board > Gear & Maintenance > 1990 Johnson 3 hp outboard
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Topic Review (Newest First)
08-02-2014 04:26 PM
dabnis
Re: 1990 Johnson 3 hp outboard

Quote:
Originally Posted by RichH View Post
forgot to mention .... the achilles heel of these older low HP Evinrudes and Johnsons is the water pump. Check out the newer 'capsule' replacement water pumps (fits inside the 'cavity' of the old pump) ... quite complex and can be a PITA to install, can never be run 'dry', but certainly increase the water volume through these older OBs.
Interesting, I had a 1947 Johnson 5 HP, a 1964 9.5HP Evinrude, 1970 6HP & 1972 15HP Evinrudes & never replaced an impeller. I did , however, have a 1985 35 HP Evinrude , which occasionally, I would fire up on the trailer to make sure it would run before launching. After about 20 years of doing this it was having trouble cooling at very low trolling speeds, new impeller, my fault.

You are right, don't run any motor out of the water or without a flushing adaptor, unless you enjoy changing impellers.

Paul T
08-02-2014 03:28 PM
RichH
Re: 1990 Johnson 3 hp outboard

forgot to mention .... the achilles heel of these older low HP Evinrudes and Johnsons is the water pump. Check out the newer 'capsule' replacement water pumps (fits inside the 'cavity' of the old pump) ... quite complex and can be a PITA to install, can never be run 'dry', but certainly increase the water volume through these older OBs.
08-02-2014 02:24 PM
dabnis
Re: 1990 Johnson 3 hp outboard

Quote:
Originally Posted by lhburch View Post
Our sailing club received a 3.0hp Johnson I am guessing 1990s bassed on the above pictures. It is reluctant to start and you have to constantly play with the choke or it dies. Will not idle. But has lots of top end power. Like one of the above posters we put it on a porta-bote. Makes it fly but it is squirrely! Were can I get a manual or other maintenance information on it?
Maybe richen up your low speed jetting adjustment, or there may be some debris in the low speed jetting circuit, requiring a carb cleaning? If it makes good top end power it probably just needs a little tweaking. 2 strokes like new plugs, easy to do.


From Rich H's post: Genuine Evinrude Johnson ETec outboard boat engine parts.

Paul T
08-02-2014 01:10 PM
RichH
Re: 1990 Johnson 3 hp outboard

Genuine Evinrude Johnson ETec outboard boat engine parts. .... parts sent/delivered quickly from the Bombardier/Evinrude/Johnson distributor network . Youll need your model number and engine year for the lookup.
Even OB parts from the 50 & 60s are usually readily available from stock from this 'network'.

;-)
08-02-2014 10:06 AM
lhburch
Re: 1990 Johnson 3 hp outboard

Our sailing club received a 3.0hp Johnson I am guessing 1990s bassed on the above pictures. It is reluctant to start and you have to constantly play with the choke or it dies. Will not idle. But has lots of top end power. Like one of the above posters we put it on a porta-bote. Makes it fly but it is squirrely! Were can I get a manual or other maintenance information on it?
05-09-2009 10:21 PM
erps I was able to get parts for my Johnson at the local outboard shop. A serial number helps cutting down on the number of trips back and forth.

Are the gaskets on the carb all dried out? You might be able to take the bowl off and soak it in some carb cleaner and then blow the sh!t out of it and give it a try.
05-08-2009 11:20 PM
adamtroyg Sorry for the reply to an older thread,
Puddinhead Ray ( ERPS ) or SVDistantStar,If you're still out there or someone else has some info.
just got my hands on an older, neglected 3HP 2-cyl with a filthy carb, could some one please direct me to a good source for parts?
thanks . . .
04-25-2008 07:24 PM
pilote
Quote:
Originally Posted by erps View Post
Can you straighten it? Wouldn't cost anything but your time to try?
@ $50 for a new one, i will try but don't you think after it's been fatigued at a bend it will have a propensity to bend again?

also, can you confirm that "neutral" on the shift handle is straight up?
04-25-2008 07:21 PM
erps Can you straighten it? Wouldn't cost anything but your time to try?
04-25-2008 07:12 PM
pilote
Quote:
Originally Posted by svey View Post
Get a service manual for your engine. On Ebay, you can get a scanned version for around 20$ including shipping.
already on order from ken cook...i couldn't find anyone who could provide reprints of the model specific shop manual...
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