Ignition Tuneup

[nando]

did you unscrew the little caps on the ends of the plugs?

[Alkasquawlik]

That was it, thanks Nando. I feel retarded.

[3bvert]

noticed for the m42 they call for the bpr6ek ( at the official ngk site, google)
which is the dual point plugs
bpr6es is the single
but most of the discussion above is for the bp5's and a different motor

[nando]

yeah, the M42 has is ~10:1 compression, so it needs colder plugs than a stock M20.