1991 evinrude 25 hp firing order

barry light

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On this two cylinder motor, does one cylinder fire for per revolution, or do both cylinders fire per revolution?
 

kbait

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Re: 1991 evinrude 25 hp firing order

Each cylinder fires once per revolution if it's a 2-stroke motor. Each cylinder fires once per 2 revolutions if it's a 4-stroke.

If you have a 2-stroke, twin-cylinder motor, both cylinders fire once for each 360 degree revolution.. 180 degrees apart.
 

Joe Reeves

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Re: 1991 evinrude 25 hp firing order

Yep... What Kbait said.... top cyl=#1... bottom cyl=#2
 

boobie

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Re: 1991 evinrude 25 hp firing order

Dumb question. Why do you ask ??
 

barry light

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Re: 1991 evinrude 25 hp firing order

I have a hand held engine tachometer that will test rpm on 2 and 4 stroke engines. This tester has two different settings for 2 stroke. One setting ( 2:1) is for 2 stroke engines that fire the plugs once per revolution and another setting ( 2:2) for 2 stroke engines fire each plug in series twice per engine revolution.........If it was such a dumb question, why did you even respond?
 

boobie

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Re: 1991 evinrude 25 hp firing order

I was asking the DUMB QUESTION !! Not you.
 

Joe Reeves

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Re: 1991 evinrude 25 hp firing order

I knew that Boobie.... easy to take some things out of context. Been down that road a few times.
 

boobie

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Re: 1991 evinrude 25 hp firing order

Me too Joe. We must travel on the same highway. LOL.
 

Joe Reeves

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Re: 1991 evinrude 25 hp firing order

Me too Joe. We must travel on the same highway. LOL.

Wouldn't surprise me Boobie as we are both of the west coast. My wife, may she rest in peace... I really had to watch what I said as if there was two ways to take what I said, one of which being wrong or possibly offensive, that's the way she would take it and I'd catch all kinds of hell.
 

boobie

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Re: 1991 evinrude 25 hp firing order

Joe, I catch hell from my wife all the time and it's fun. LOL. I'm always giving her crap on the outside and laughing on the inside.
 

barry light

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Re: 1991 evinrude 25 hp firing order

Bobbie, I apologize for taking your reply as I did, it's just the way I read it. I do appreciate you and the others taking time to reply.
 

boobie

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Re: 1991 evinrude 25 hp firing order

Barry, don't worry about it. As I learned a long time ago, " 95 % of the worlds problems is lack of communication". And over the years this sure proved itself out. Have a good one.
 

kdegru

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Re: 1991 evinrude 25 hp firing order

Me too Joe. We must travel on the same highway. LOL.

I remember how the little lion puppet (Pookie) on the Soupy Sales show used to call Soupy by the pet name of Boobie. Your posts just happened to trigger some happy memories of rushing home from school to catch the Soupy Sales show.
 
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