72 merc 800 Firing Order

[swellington]

The manual says 90 deg, what does that mean?

Some other models say 60 deg consecutive, what does that mean?

 

[Moody Blue]

Re: 72 merc 800 Firing Order

Firing order is 1-3-2-4 according to my manual.

No idea what the 90 and 60 degree reference is to.