9.5 Evinrude Sportwin outboard

[dstout13]

I'm not sure what year this engine is. Where do I locate the Manufacturer # and Model #? Maybe you can answer my question without that info. The engine has autolite 353 sparkplugs in it now. I want to replace these with marine sparkplugs.....which sparkplug should I use. Please recommend brand and number. Thanks. dstout13

 

[DJ]

Re: 9.5 Evinrude Sportwin outboard

dstout,<br /><br />The model and serial #'s will be in one or two places.<br /><br />1. There should be a metal tag affixed to the clamp bracket.<br /><br />2. There is usually model and serial #'s stamped into one of the core "freeze" plugs on the side of the engine.

 

[dstout13]

Re: 9.5 Evinrude Sportwin outboard

Thanks, that was a great help. I have Model #9722M, serial #E01265. I still have my sparkplug question. dstout13

 

[JB]

Re: 9.5 Evinrude Sportwin outboard

Howdy, DStout13.<br /><br />OMC recommended Champion J4J plugs for the 9.5.<br />The modern Champion equivalent should be gapped at .030. <br /><br />Gap your points at .020.<br /><br />Fuel mix should be 50:1.<br /><br />Good luck.

 

[snapperbait]

Re: 9.5 Evinrude Sportwin outboard

9722=model year 1967

 

[dstout13]

Re: 9.5 Evinrude Sportwin outboard

JB and Snapperbait,<br />Thanks a lot, your help is invaluable.

 

[sloopy]

Re: 9.5 Evinrude Sportwin outboard

set the gap at 1mm !!! .020!!! yikes thats small

 

[digimortal777]

Re: 9.5 Evinrude Sportwin outboard

it says .20 on thwe flywheel so that correct<br /><br />i have a jonny 9.5 and thats what i used

 

[slow_boat]

Re: 9.5 Evinrude Sportwin outboard

Champion no longer makes the J 6 J or the J 4 J plugs. The Autolite L353 you have is a direct cross from the J 4 J. FWIW, the Autolite L303 is thier version of the Champion J 6 J...these are for marine applications & work just fine for the older j/e engines

 

[JB]

Re: 9.5 Evinrude Sportwin outboard

The Champion JxJ plugs were not strictly marine use plugs.<br /><br />I used J4J, J6J, J8J, and even J10J plugs in chain saws, lawn mowers and racing Karts.<br /><br />I prefer Champion plugs when available.<br /><br />Spark plug heat range is not a marine/non-marine issue. It is an engine characteristics issue.<br /><br />I recommend the modern Champion equivalent of the J4J.

 

[slow_boat]

Re: 9.5 Evinrude Sportwin outboard

I listed wrong Autolite #'s in my previous post...Champion J6J is Autolite 303; Champion J4J is Autolite 353. Like JB, I have used these plugs for other 2 cycle apps besides marine & did not mean to infer they were only for marine apps.<br /><br />Champion's discontinued J6J crosses to their current J6C and their discontinued J4J crosses to their current J4C if this helps anyone.