Additives for small outboard petrol. Any recommendations?

[RichardS]

I've just cleaned up the engine at the end of the season and I have run the engine until it stops. I've taken the carburettor off to check it over. The residual fuel in the bowl of my engine's carburettor when it will no longer run is approximately 20ml. The only way of emptying the bowl after use would be to open the drain screw. That is not a practical solution to avoiding corrosion when the engine is being used during the season.

I did explain that would be the case in post #11 although I note that posters are still telling you to run the engine until it stops to drain it.

My earlier post #8 is the only realistic alternative to incessant draining and will give a very acceptable result.

Richard

 

[chewi]

Originally Posted by andygc

........
As for corrosion, use a good additive (Biorbor EB, Merc store and start, Star tron, and not Stabil), close the tank vent when not running, and you won't have problems. Much easier. You should go many, many years between carb cleanings. I have since I started using Biobor EB. (I'm a lab and magazine product tester, not an industry vendor.)

Is there a UK distributor for Biobor EB? their website doesn't offer one.

 

[thinwater]

Is there a UK distributor for Biobor EB? their website doesn't offer one.

That does seem to be a challenge. Try Soltron; same stuff as Startron but UK. The Mercury storage additive is also very good and is distributed in the UK.