One of my spearfishing buddies has one, unbelievable economy and performance. As for warranty, mercury have become one of the highest used by government bodies over here, water police, maritime etc.
Recently speaking with a comercial diver who's boat is rigged with twin merc 250's who claimed they are so popular among the comercial sector partly due to having far stronger gearboxes than Suzuki ( Yam were also good ). This comercial fishermen works on hooker ( air fed down a hose ) the boats don't anchor as the divers cover large areas of sea floor in search of abalone, while the skipper constantly keeps the boat in and out of gear to stay with the diver. This is also the case with small craft water police and maritime, lots of coming alongside boats for safety's and alcohol checks etc ( in and out of gear slow manovers ).
Both the comercial dive boats I mention are skippered by fully qualified outboard mechanics who both moved into comercial fishing simply because of the much higher profits. Keeping any comercial boat running in these situations day after day speaks heaps to me for their choice of outboard.
Mercury have been at the front of racing technology outboards for years, unfortunately their reputation from the early engines brought them the black anchor title. Funny enough though there are still plenty of those really old mercury outboards around.
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