Hoping to identify motor and year range

[Freqman1]

I know nothing about these but what I do know is if you are experimenting with plugs is check to make sure the reach doesn't cause a problem. I'd install the plug, turn it by hand, then remove the plug to see if there is any contact before trying to put the fire to it.V/r Shawn

 

[benjaminring]

Thats the problem I have. Plugs i have tried dont have clearance

 

[bricycle]

Yours has different ignition than I have ever seen... looks way older than engine.
Here's what one usually looks like...

 

[Superman1984]

@bricycle wouldn't the plug be a shorty like this ?

I ask because it is also showing Lauson/Tecumseh but it's also saying back into the 1940s

 

[benjaminring]

I will try it and let u know. Thanks

 

[Superman1984]

I will try it and let u know. Thanks

Some of the oldest mowers & tillers my dad used to have used little sized plugs like this. I wouldn't go buy this exact plug but reference how short it is & maybe try a cheap 1 for good measures of it hitting the piston

 

[bricycle]

Height challanged plugs are fine, may run a teency bit hotter, but that should work. gap at .030, no smaller than .025