If you leave it.... Best case, you fill your bilge with exhaust fumes
Worst case, if your running rich, you could fill the bilge with fuel fumes and you have an open ignition source
I would fix it
and every spec on-line says the '89 1700XR is outboard with an 85hp Force.
As a former cheesehead, Registering in person used to be easy, especially the Green Bay office on 29.
in other thread, I posted the link to the DIY sticky information in the restoration forum. everything you need is in that restoration sticky (3rd down) in links 14, 15, 17, 18, 2, 3, 4a, and 4b for fiberglass work.
the business model of selling direct to the rental market probably cuts down on warranty claims as there is a dedicated maintenance crew for the mechanical stuff, and all the soft surfaces are not covered under warranty in a commercial use application
are they built any better? probably built...
the thunderbolt ignition is 10x better than the delco. Not sure what brand Sierra is private labeling. I know that the recent line of Sierra distributors are the old Mallory YL units (sold at twice the price)