That's a rare find to find one that old as new. But, still old style and parts are a question. Due to it's size and design, your boat should have a safety cut off switch / lanyard. The newer style has them built in. That one, does not.
Unless you have a strong desire for that exact one, ther...
Pulled the trigger and bought a Hydrastar Electric over Hydraulic disk brake conversion kit from iTrailer this week to convert my Eagle tandem axle trailer to EoH. Was on sale for $824. Kit comes with everything needed for the install except the brake line needed to connect existing hydraulics...
I always found the major expense of a used / older boat is getting it back up to snuff, as other's ideas of maintenance swing wildly.
After that, annual routine GOOD maintenance is about $500 - $700 (if you do it yourself and not including initial outlay for specific tools) on a Mercruiser...
Suggest you attend a US Coast Guard Auxiliary ( https://cgaux.org/ ) or Power Squadron safe boating class. It is cheap, in person and very informative.
Maybe even join the auxiliary to really learn boating first hand / hands on while on the water. More training than one can imagine and once a...
Alternator belt or alternator itself, possibly.
Do the voltage checks at battery when running. Should be a min of 13.8V when on fast idle and under load. If it is good, then back to the connections checks.
Was belt loose / squealing?
mercury service manual 90-814705R03
https://www.scribd.com/doc/76275169/Merc-Controls-Newest-Manual#
Shows the repair / maintenance on older ones too.
I have the PDF version, but it's big at 25 meg and won't upload to here.
But, fuel economy is a big point. Mine has the 3L Twin Turbo putting out 404 hp, and if I do my part, it gets 36 mpg highway. Has gone as high as 40 mpg in a 25 mile stretch of flat road (when switched to 4 cyl operation).
2018 Caddy CT6 Platinum. Had someone bang a door against it and put in small dent (BTW, same thing happens on steel bodies too). Was easily removed by a guy that does paintless dent removal and he said it was super easy to massage out. Car still looks like the day it was new.
Some vehicles with...
Heck, not just the suspension parts. My car's frame and body are all aluminum, too.
Have no concerns with strength or usability.
Biggest worry is cost of body repair, since guys that work on aluminum vehicles are far and few between.
I see your drive is an Alpha. Since raw water pump is in drive, can run for a very sort period with drive off.
If it was a Bravo, the pump would be on engine and a few seconds the pump will burn up the impeller with no water supplied.
"electric discs" are actually hydraulic with an Electric over Hydraulic pump package.
As I stated before, that setup with Kodiac discs would be the best IMHO
