Trading for 1991 175hp today- what to look out for?

[nickdavies]

I am trading one of my Evinrude 20" V-6 for 1991 175 Yammie 25".
Are any specific problems I should be on the look for?
I will run compression check(even and over 90 psi ??), lower unit oil, trim
function- it is a salt water motor-
No controls included- I need to wiring diagram. Will any controls beside originals fit? thanks

[jb123]

within 10%, over a hundred, pressure test lower unit and cond of lube, a replaced shift shaft w/stainless would be preferable and a steering arm that isnt close to gone.