I've searched the manual that came with my 3W75S.
I can't find the spark plug gap anywhere.
Does anyone know what it is?
Thanks in advance,
Bob

I believe those CM-6 plugs use 15 to 20 thou.

Alot of flyers use the flat end of a #11 xacto blade. It's about .018 from what I remember. I'll check when I get home and let you know_bob

Bob is correct about the #11 blade.

Thanks Guy's
Now I can put the plug in with a socket instead of my fingers.
My new scratch built Laser is just about ready!
Thanks again,
Bob