Briggs 5 HP Flathead Spark Plugs

[OND]

Hey OND, how have those Autolite plugs worked out for you? Any pros or cons?
I've seen the 411 recommended but not the other two.

Yes the 411 plug is a great plug to run , notice the longer thread count on this plug actually puts the spark deeper in the cylinder. As for the 292 plug its good to for engines with more piston pop up and head milling done , pulls the tip of the plug back up in the combustion chamber. I've been running the 411 in my Powell build and its doing just fine.
Thanks.

on my briggs 5hp engines I run a CJ4, and as a rule of thumb I run the coldest plug I can without fouling issues.

This is a good rule to follow....thanks for posting . :thumbsup:

 

[Harquebus]

Thanks for addressing the longer length of the 411's firing end and its benefits. You saved me countless minutes. :laugh:

 

[Harquebus]

Pity Botophucket nuked all the photo links on page 1.

This was and is an informative thread.