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Old April 16th 10, 02:38 PM posted to rec.boats.building
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Default Underpowered Johnson 50

Went up to a friends place to help him with the boat and the engine is
running way underpowered from where it normally is. When we are going
full throttle it is only acting like a 20hp. I checked the plugs,
neither look corroded, just looks like they have some oil on them.
Checked what I assumed was the throttle just making sure the levers
and stuff were moving their full range. The engine doesn't sound like
it is struggling, and it's not getting as loud as it should when we
open it up, it just basically acting like a 20.\
Thanks in advance!

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Old April 16th 10, 08:17 PM posted to rec.boats.building
mmc mmc is offline
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"Michael D" wrote in message
...
Went up to a friends place to help him with the boat and the engine is
running way underpowered from where it normally is. When we are going
full throttle it is only acting like a 20hp. I checked the plugs,
neither look corroded, just looks like they have some oil on them.
Checked what I assumed was the throttle just making sure the levers
and stuff were moving their full range. The engine doesn't sound like
it is struggling, and it's not getting as loud as it should when we
open it up, it just basically acting like a 20.\
Thanks in advance!


A funny thing with a lot of the older 2 cycle motors is that they can run on
1 cylinder.
I'd suggest one of these:
http://www.harborfreight.com/cpi/cta...temnumber=4424 to see
if there is spark to each cylinder They are easier to see out of direct
sunlight.
If there is spark then it's a fuel problem. Was the boating sitting for an
extended period without draining the fuel?


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Old April 16th 10, 08:28 PM posted to rec.boats.building
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Default Underpowered Johnson 50

On Apr 16, 2:17*pm, "mmc" wrote:
"Michael D" wrote in message

...

Went up to a friends place to help him with the boat and the engine is
running way underpowered from where it normally is. *When we are going
full throttle it is only acting like a 20hp. *I checked the plugs,
neither look corroded, just looks like they have some oil on them.
Checked what I assumed was the throttle just making sure the levers
and stuff were moving their full range. *The engine doesn't sound like
it is struggling, and it's not getting as loud as it should when we
open it up, it just basically acting like a 20.\
Thanks in advance!


A funny thing with a lot of the older 2 cycle motors is that they can run on
1 cylinder.
I'd suggest one of these:http://www.harborfreight.com/cpi/cta...mnumber=4424to see
if there is spark to each cylinder *They are easier to see out of direct
sunlight.
If there is spark then it's a fuel problem. Was the boating sitting for an
extended period without draining the fuel?


Thanks! I've been told that it was ran dry this fall, but it didn't
really look like it when I went up there. It's not my engine so I'm
not sure. A friend recommended that I check the fuel filter and carbs
as well....
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Old April 17th 10, 01:10 AM posted to rec.boats.building
mmc mmc is offline
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Default Underpowered Johnson 50


"Michael D" wrote in message
...
On Apr 16, 2:17 pm, "mmc" wrote:
"Michael D" wrote in message

...

Went up to a friends place to help him with the boat and the engine is
running way underpowered from where it normally is. When we are going
full throttle it is only acting like a 20hp. I checked the plugs,
neither look corroded, just looks like they have some oil on them.
Checked what I assumed was the throttle just making sure the levers
and stuff were moving their full range. The engine doesn't sound like
it is struggling, and it's not getting as loud as it should when we
open it up, it just basically acting like a 20.\
Thanks in advance!


A funny thing with a lot of the older 2 cycle motors is that they can run
on
1 cylinder.
I'd suggest one of
these:http://www.harborfreight.com/cpi/cta...mnumber=4424to
see
if there is spark to each cylinder They are easier to see out of direct
sunlight.
If there is spark then it's a fuel problem. Was the boating sitting for an
extended period without draining the fuel?


Thanks! I've been told that it was ran dry this fall, but it didn't
really look like it when I went up there. It's not my engine so I'm
not sure. A friend recommended that I check the fuel filter and carbs
as well....
-------
Good plan. If fuel oil mix sets long enough it turns into a varnish kinda
crap and gums up the works.


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Old April 17th 10, 02:14 AM posted to rec.boats.building
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Posts: 184
Default Underpowered Johnson 50

On Fri, 16 Apr 2010 06:38:08 -0700 (PDT), Michael D
wrote:

Went up to a friends place to help him with the boat and the engine is
running way underpowered from where it normally is. When we are going
full throttle it is only acting like a 20hp. I checked the plugs,
neither look corroded, just looks like they have some oil on them.
Checked what I assumed was the throttle just making sure the levers
and stuff were moving their full range. The engine doesn't sound like
it is struggling, and it's not getting as loud as it should when we
open it up, it just basically acting like a 20.\
Thanks in advance!


When having engine trouble I always go down to the station and get
some "fresh" gasoline. surprisingly that often fixes the problem.

Apparently the modern gasoline is not quite as good as the gas we used
to get :-)
Cheers,

Bruce
(bruceinbangkokatgmaildotcom)


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Old April 18th 10, 07:51 PM posted to rec.boats.building
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Posts: 44
Default Underpowered Johnson 50

For $20, this guy will give you a list of things to check,and he will keep
at it until the problem is solved.
It worked for me. I got to the end of his initial list and fixed a poor
running motor by cleaning out a carb jet with a little piece of wire.
http://www.maxrules.com/fixelink.html


"Michael D" wrote in message
...
Went up to a friends place to help him with the boat and the engine is
running way underpowered from where it normally is. When we are going
full throttle it is only acting like a 20hp. I checked the plugs,
neither look corroded, just looks like they have some oil on them.
Checked what I assumed was the throttle just making sure the levers
and stuff were moving their full range. The engine doesn't sound like
it is struggling, and it's not getting as loud as it should when we
open it up, it just basically acting like a 20.\
Thanks in advance!


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Old April 23rd 10, 04:42 AM posted to rec.boats.building
mmc mmc is offline
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Posts: 891
Default Underpowered Johnson 50

A real honest to god mechanic helping like that? Definitely worth $20.

"Garland Gray" wrote in message
...
For $20, this guy will give you a list of things to check,and he will keep
at it until the problem is solved.
It worked for me. I got to the end of his initial list and fixed a poor
running motor by cleaning out a carb jet with a little piece of wire.
http://www.maxrules.com/fixelink.html


"Michael D" wrote in message
...
Went up to a friends place to help him with the boat and the engine is
running way underpowered from where it normally is. When we are going
full throttle it is only acting like a 20hp. I checked the plugs,
neither look corroded, just looks like they have some oil on them.
Checked what I assumed was the throttle just making sure the levers
and stuff were moving their full range. The engine doesn't sound like
it is struggling, and it's not getting as loud as it should when we
open it up, it just basically acting like a 20.\
Thanks in advance!






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