[Shop-talk] Firing order problems.

[Steve Hammatt Mount Vernon WA USA]

I have something similar to an old tractor
engine.  The specbs say the firing order should be
1, 3, 4, 2
but itbs currently running at
1, 2, 4, 3

Ibm possibly thinking that since the
second and fourth cylinders are switched,
it can run without backfiring, but is simply
quite a bit down on power.  The valve timing
is very conservative.  Any thoughts?
And yes, Ibve visually checked the direction
of the magnetobs rotor and itbs traveling in the
1, 2, 4, 3 direction.

Am I just missing something here?  ....or what
does the knowledge bank think.

Super thanks

Steve Hammatt
Mount Vernon WA USA