motor running too rich,and die.

[boxer38z]

Hello all, I got a 1970 Johnson outboard motor at 60 HP. Yesterday i took it out it dies on me after it ides for like 5 mins. The motor runs fine if i'm cursing around but soon as i puts in N it will die out after fews mins, also lots of white smoke very heavy smell of fuel. I then disconnect the fuel line and starts right back up and idel until all the fuel burns out. does this ever happens to anyone? and also any suggestion what i should do and check thanks all in advance.

 

[fireman57]

Re: motor running too rich,and die.

White smoke is not good. Could be a blown head gasket as water has gotten into your cylinders. Pull all the plugs and see if one is a lot cleaner than the others.

 

[reeldutch]

Re: motor running too rich,and die.

try running it with the hood off and see how it idles.<br />let us know how it turns out.

 

[boxer38z]

Re: motor running too rich,and die.

i pull all the plugs out it looked clean, it's only wet because it's running so rich. I will try to adjust the 3 slow speed mixture see if that does anything. I know it's probably better adjust them when i'm on the water, but i really have no time to take it down the shore again this week. Would the ears be good enough for such adjustment?

 

[fireman57]

Re: motor running too rich,and die.

They will get you close. If you set the idle on muffs count on the rpms being less when you get it in the water. I believe you want around 650 - 700 on the water so you might set them around 700 to start with on work from there when you get on the water next. Do a search from the top of the page for Joe Reeves great post on how to set these.

 

[boxer38z]

Re: motor running too rich,and die.

well i will try to adjust the motor today. I will post the result later. I have another question i know i'm going off topic here, was i suppose to use NGK plugs or Champion plugs? i'm using NGK plugs part # B7HS i didn't measure the gap yet. Just got the boat fews weeks ago, the guys said he spend $500 to have the motor service not long ago for tune up. Thanks all for the suggestion.

 

[boxer38z]

Re: motor running too rich,and die.

well i just try test the motor, it's still doing the same thing, I see a lot of fuel dripping out of all 3 caburator after 20 mins of idle. I thne shuts it off and turn it back on it will run for less then a min and dies out. No luck after that. i turn the adjustment screw all the way to clock wise that's suppose to lean it out right? no clue what's my next step.