Never had the coil problem.. I blew the air pump first. Then a powerhead on my 08 at 300hrs. No problems yet with the 09.
Yamaha is the most dependable outboard made...if mine blew up tomorrow, it would still be the best...Sounds like you may have an air compressor issue.
I've had a Yammie and now have an Opti. Excellent performance from both.
It's a matter of the odds - any mechanical device can have problems. But I look around at the number of guys I know personally with Yammies, the number of guys I know with the Optimax, and the postings about both on reliable websites like BBC & it's pretty clear that the Optimax has higher risk of problems than the Yamaha.
Why did I get the Merc? Only one reason - the nearest Yamaha technician (at a place I don't completely trust) is in Phoenix & there's a certified Merc tech here at Roosevelt.
If I were doing it over again, would I make the same decision? Hard to say for sure, but I'd probably go with a Yamaha.
Frank
Dave I think the Yamaha is the same price if not cheaper...I get all my parts fromHow much difference is there between repair and maintenance costs from the Merc to Yamaha? For example; how much are water pumps and fuel filters on the Yamaha? I'm considering both engines but I worry a little about finding parts for the Yamaha. I know there are plenty of parts out there for the Merc but I don't see that many for the Yamaha.
Thx,
NoviceDave