Old Johnson V4

[Mr Mohl]

Hello,
Having a few V4:s in my garage from the sixties and seventies, outside in mint condition. Unfortunately it´s very hard to get hold of anyone in Sweden who are good in trubble shooting theese ones.

My Johnson 85 Hp from 1972 is starting fine, running fine on speed but when slow down (warm engine), it's not running on all 4 and when stops it's unpossible to restart again. Waiting a couple of hours (cold engine) it starts up again and runs fine but when warm........

I have changed "the box", the coil, the 2 contactors, spark plugs and head gaskets, but no change! Does anybody know or have any idea where the fault is???
Thank you in advance & kind regards /thomas, Sweden

[boats.net]

Could be the stator or the trigger coils under flywheel.

[Mr Mohl]

Thank you for your kind reply but this model has no trigger unit.
It has 2 contact brakers.
Any idea?

Kind regards /thomas, Stockholm, Sweden