I'm looking at buying a 1990 Nitro with a evinrude 175 Xp. The guy that is selling it said it over neated the last time he had it out. The motor turns over now and has good compression but will not fire are there some things to look at electrical that may have been damaged in the overheat. The boat is priced right and in pretty good shape so I'm very interested even if it may need the powerhead redone. Thanks in advance for your Help. Pat