How to Gap Spark Plugs????

A

Areleus

Cadet
Joined
Dec 12, 2007
Messages
28
Friends,

How can I learn to gap my spark plugs? My outboard is a 1985 25 horsepower 2 stroke manual, Serial # for Engine (EO522784), Model # for Engine E25RWCOS.

I want to learn to be more mechanical with the basics and apprecaite all the help you can give me.

Areleus
 
F

F_R

Supreme Mariner
Joined
Jul 7, 2006
Messages
28,195
Re: How to Gap Spark Plugs????

Drop by your friendly auto parts store and pick up a spark plug gapping tool. It'll be a round gizmo with a number of different thickness wire loops around the outer rim. Sometimes they give them away as free advertizing.
 
J

JJags3

Seaman
Joined
Feb 14, 2008
Messages
51
Re: How to Gap Spark Plugs????

After you buy the aforementioned gapping tool, gap your plugs at .30. Also, make sure you have the right plugs. You can use QL77JC4
 
A

Areleus

Cadet
Joined
Dec 12, 2007
Messages
28
Re: How to Gap Spark Plugs????

Thanks guys!

What are the right plugs and gaps for a 35 horsepower Evinrude 2 stroke manual start model # E35RCIG???
 
patrick4266

patrick4266

Chief Petty Officer
Joined
Nov 29, 2007
Messages
591
Re: How to Gap Spark Plugs????

while we are on the subject of spark plugs. I bought new champion plugs for my 1972 85hp rude and they have no gap like the set that was in it. I ordered the ones that the manual said. What is the difference between gaped and ungapped plugs? Is one better than the other?
 
F

F_R

Supreme Mariner
Joined
Jul 7, 2006
Messages
28,195
Re: How to Gap Spark Plugs????

The difference is the surface gap was a marketing fad that soon died out because they don't work well. Use the QL77JC4.
 
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