need help

B

Brad5555

Recruit
Joined
Mar 30, 2010
Messages
3
I have a 1959 johnson 35 hp runs good but does not get up and go, it will but only do 6 mph on my GPS any ideas? The top cylinder spark plug is white and the bottom spark plug looks like oil is on it.
 
7

71Windsor

Petty Officer 1st Class
Joined
Jun 25, 2008
Messages
286
Re: need help

have you done a compression test? sounds like your due for a rebuild.
 
cougar1985

cougar1985

Lieutenant Junior Grade
Joined
Oct 7, 2005
Messages
1,023
Re: need help

if indeed it has been rebuilt and the points and coils are new or your positive they are good i would try adjusting the slow speed circut while under load .are the plugs new also .
 
ovnic1234

ovnic1234

Seaman
Joined
Dec 6, 2008
Messages
69
Re: need help

Plug wires, change them if you have done everything else and are beating your head against the wall. Reuse some car ones if you have some lying bout' or buy it off a spool at one of your local Napa's or similar. I do it now on every motor I get.

Might not be the solution, just a thought.

Good luck
 
cougar1985

cougar1985

Lieutenant Junior Grade
Joined
Oct 7, 2005
Messages
1,023
Re: need help

use marine wires not auto you could potentially be asking for grief.auto are usually carbon core which could possibly break under the vibration of the motor for one thing.any outboard shop should have a roll of the proper wire.a white plug tells me your running lean in that cylinder .possible plugged jet or it could be as simple as the low speed mixture not properly adjusted.also carefully check the fuel lines for any leakage.hope this gets you at least started and maybe somebody else will chime in with a little more motor experince as im still a rookie with only 7 or so motors and 30 years of goofing around so in here im still a tadpole,lol.
 
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