Spark Plugs

[fostermutt]

What spark plugs would you recommend for a 1981-200hp Envinrude. It has been misfiring when at idle speed. Is there a particular brand that performs better than others and should it be for marine engines only? Thank you for the suggestions.

 

[JB]

Re: Spark Plugs

JohnnyRudes like Champion plugs, FM.

 

[rickdb1boat]

Re: Spark Plugs

Champion UL77V or QL16V Surface Gap is recommended for your motor.

 

[chippy]

Re: Spark Plugs

If it is a 2 stroke motor. NGK plugs are the one's to use.

 

[rickdb1boat]

Re: Spark Plugs

Not for OMC's. They don't like or run as well on NGK's....

 

[cobra 3.0]

Re: Spark Plugs

I have NGK platinums on my 1986 3.0 OMC and it runs beautifully. (I only bought the platinums because they didn't have the regular ones.) Mind you that's a GM inboard!

 

[JB]

Re: Spark Plugs

4 stroke inboard engines are a different animal than 2 stroke outboards, Cobra.<br /><br />"OMC" inboard engines are not, and were not, made by OMC.<br /><br />The question is about a 2 stroke outboard made by OMC.