Just got bad news.. my '91 Johnson 115 4cyl 2 stroke is in need of a powerhead rebuild. I was quoted 2 grand and i am on the fence about going ahead. To replace it would cost about 5 grand (with a slightly newer rebuilt) or last years model at 9grand or so. Money is definitely an issue but I don't want to be penny wise pound foolish. So lets hear those opinions , is the '91 engine worth rebuilding?