I've got an old 1978 Evinrude 25hp eninge which has been sitting outside the shed for a few months now, so I have decided to sell it on ebay.
Anyway, put it in the wheely bin the other day to make sure it still worked, and guess what, it didn't!
First I thought it was a flat battery - starter motor found it very diffecult to turn the flywheel. So, I charged the battery up, and still had the same trouble. Took the plugs out - they were rather dirty so cleaned them up and put them in the oven for a little while. Put them back in the engine and same problem.
Took the plugs out and tried the starter again - worked fine without the plugs in. Tried with one plug at a time and it starts and runs fine.
Having run it for little-while on each cyclinder, I put both plugs back in. This time is started, although it did stuggle to start - again the motor found it very hard to turn. Ran it for a little while, and stopped it. Then tired to start it again, and it wouln't start.
Having tried for the last hour or so to get it going again I have only managed to do so once (to have it stall on me cos it had run out of petrol
I have no idea what to do now, and was hoping some clever person on here would! Any ideas??