that is weird....all my B&S equipment manuals have a good parts breakdown. even list spark plug type and gap in the specification page
Very odd indeed. My old/smaller B&S, yep, plug listed clearly in the Owner's Manual. Can't ever remember having this issue, with any other small engine.
The newer 7kw, lists the plug gap in the Owner's Manual, then says "See Specifications for plug type". Nothing listed in the Specifications section.
Shouldn't be rocket-science to get this info..... but it just fell through the cracks I guess.
There will be a B&S Engine# labelled on the engine itself; all else fails I'll look it up that way. Not a fan of pulling a working plug, w/o a known-good spare at hand....
I won't be surprised if I get a response "RJ19LM" from B&S. But, if I don't check......
Rgds, D.