Looking for the firing order 1975 Merc 1500 xs

[Ronny's Marine]

Looking for the firing order 1975 Merc 1500 XS on the head / water jacket it says 145236 is there another order for this engine
It will start and idle and run at low rpm's but no power when asked for . Revs up fine in N or out of the water . Please let us know if you do

Thanks

[Ronny's Marine]

[cyhuff]

That's the correct firing order. Sounds like that old motor's broken to me. I'll take it off your hands if you'd rather not bother trying to fix it, pm me.

Trace

[Dave Strong]

Have you done a complete link and sync? They need to be perfect to run right.

Dave