My 2001 Merc 90 hp four stroke with 250 hours on it completely detonated. I babied this engine. My advice is that if you have one sell it (fast) and if you are thinking of getting a Merc don't. My insurance guy said the Yamahas are doing this all over the place too. Well guess who uses the same powerhead as Merc, yes Yamaha. Just thought I would opine, maybe ya'll can learn from my misfortune. And the Merc Rep Already told me to go to hell so that's a dead end (Sweet, a crap product AND bad customer service). I am 48 years old, don't waterski, I just fish...and not fast.
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