oily residue on plugs?

[Big-HE]

I changed my plugs on 1973 85hp Johnson last year. After having som hesitation problems I checked the plugs and I have a black oily residue on all my plugs. Is that normal? Its not a lot and its only around the threads and on the electrodes (I think its called).

 

[DJ]

Re: oily residue on plugs?

Big He,<br /><br />I wouldn't worry too much about it. You should be running a 50:1 ratio. That equates to:<br /><br />1 pint of a good TCW-3 rated oil to 6 gallons of 87 octane fuel. You do not need premium.

 

[ZAX]

Re: oily residue on plugs?

It's called oil!

 

[Reel Appeal]

Re: oily residue on plugs?

How bout cleaning out those carburators?Drain'em and see if there's anything coming out that should'nt be. Install a inline fuel filter to prevent same again.

 

[Dhadley]

Re: oily residue on plugs?

What spark plugs did you put in?<br /><br />Be specific.

 

[seagull369]

Re: oily residue on plugs?

'Tis normal to have oil deposits on yee plugs. Youre putting oil in with the gas, arent ya?