Small outboard repair

[Roofer Billy]

Does anyone on here do small outboard motor repair? I don't know crap about them . I have a 5 horse Johnson/ Evenrude  that  acts like its fowling out. When you try to run it top speed . I put new plugs in it and no difference. It runs excellent idling. Any suggestions. 

[PRDATR]

Does it have a fuel filter? How old is the fuel line? it could be sucking in air.

 

[jdown]

Following - if someone has time, talent and interest for the right price to tinker with one - I have one too I'd love to get running. It's been 10-15 years since it ran - needs someone to give it some love. 

[Roofer Billy]

Brand new fuel line and filter. Thought maybe I lost a cylinder. Checked compression in both cylinders and all is good. It idles perfect and runs on slow setting. But when you try to give it full throttle it bogs down and acts like its loading up . running 50:1 ratio

[Roofer Billy]

Just now, Roofer Billy said:

Brand new fuel line and filter. Thought maybe I lost a cylinder. Checked compression in both cylinders and all is good. It idles perfect and runs on slow setting. But when you try to give it full throttle it bogs down and acts like its loading up . running 50:1 ratio

Never gotten hot has always been kept inside. Really old like my Dad but still has some good time left 😁.pumps water fine . Hmmmm

[jdown]

Following - if someone has time, talent and interest for the right price to tinker with one - I have one too I'd love to get running. It's been 10-15 years since it ran - needs someone to give it some love. 

[oz31p]

I’ve worked on a handful and my experience. It’s always the carburetor.

[firstcoueswas80]

There's a guy in Tucson, Gary Soukup. He does good work if he'll take it. 

[CouesPursuit]

16 minutes ago, oz31p said:

I’ve worked on a handful and my experience. It’s always the carburetor.

This or the fuel pump is a frequent culprit. All can and should be rebuilt with kits if it has been awhile. Sounds like your float is gummed up or the fuel pump diaphram is shot.

If you haven't messed with carb settings, it isn't the fuel lean/rich adjustment, but you should gently turn it in and count the turns until it bottoms out. It will make it a lot easier to re-set after you rebuild the carb. Some of those older models have 2 adjustments, one for slow/high speed each. 1.5 turns out is usually a good place to start but I have a 4 hp johnson that likes 1 turn and 40 hp that likes 3.5. Ymmv.

[CatfishKev]

If it starts and idles just fine I agree with oz.  You could probably remove the jets and clean them.  I'm not sure about boat motors but for small engines I've always found amazon had decent replacement carbs, but again idk about boat motors.  

[oz31p]

53 minutes ago, CatfishKev said:

If it starts and idles just fine I agree with oz.  You could probably remove the keys and clean them.  I'm not sure about boat motors but for small engines I've always found amazon had decent replacement carbs, but again idk about boat motors.  

A week ago I put at $30 carb and a $12 impeller from Amazon on a 5hr mariner , cruzed all over pleasant since 

 

that motor sat so long every carb passage was plugged solid 

[Roofer Billy]

2 hours ago, CouesPursuit said:

This or the fuel pump is a frequent culprit. All can and should be rebuilt with kits if it has been awhile. Sounds like your float is gummed up or the fuel pump diaphram is shot.

If you haven't messed with carb settings, it isn't the fuel lean/rich adjustment, but you should gently turn it in and count the turns until it bottoms out. It will make it a lot easier to re-set after you rebuild the carb. Some of those older models have 2 adjustments, one for slow/high speed each. 1.5 turns out is usually a good place to start but I have a 4 hp johnson that likes 1 turn and 40 hp that likes 3.5. Ymmv.

Thank you. I can fix pretty much any lawn mower motor. Weed eater etc. just never a boat motor. It's a oldie but clean as a pin inside and out. 1962 Johnson/Evenrude 

[CouesPursuit]

I'm not a pro but have have owned and worked on many 70-90s OMCs. Shoot any questions here and it sounds like a few of us can guide you through it. Best part is knowing what you need to on the water when chit ain't runnin' right.

[Roofer Billy]

Exactly . It's a pain in the butt to spend all kinds of money, just to go. Then motor problems. And stuck with a trolling motor only. Not bad at Talkalai lake. But suck know matter what

[oz31p]

Do you have a model number ?