Thank you for your quick reply.
There were more spikes on the gearbox drain plug than on the other oil changes. But if that was "too much" I do not know.
I regularly change the oil.
I use HI-VIS gear oil.
That could be wrong, of course.At the time there was probably a change in the oils to...
I have the problem that makes our age-old (1969) Almar 16 foot boat with the hitherto superb running AB Evinrude 135PS Type 135483B, 4-cylinder, 2-stroke from 1974 difficulties.
We use the boat exclusively for water skiing.
The difficulties initially expressed themselves over too low idling. The...