I recently purchased a Tohatsu 50hp TLDi and want to know about flushing it with fresh water.
I was simply going to buy the flushing attachment and use that, but I am not sure whether you are meant to have the engine running or not whilst using the flushing attachment. I hope you are as that way the fresh water will run around the hole system (the stat etc) properly. I have read my manual and its a bit ambiguous, it says to fit the flushing attachment and flush out with water, no mention of running the engine! BUT also on the same page it says "wash the engine before long term storage, run the engine at slow speed to flush out fresh water from the cooling system..."
So does Tohatsu maybe mean, when doing a quick flush just turn the tap on, but if storing the engine away for a period also run the engine with the flushing attachment/tap on?!
As for ear muffs, obvously I know you must have the engine running for them to work, but if I do buy ear muffs instead of the flushing attachment, should I be buying single or double ear muffs? From what I have seen, usually single is for outboards up to 50hp and double is for outboards over 50hp. Is this correct? Would I do any harm using a double one? I would rather the engine got more water to help keep it cool whilst out of the water!
Thanks for your help!