Help I have a 1988 funmaker but needs a little work only bathroom lights work and I can't figure out how to use water pump I think owners manual can help me any help me please

Try the 1990 Classic manual, the basic trailers stay pretty much the same under their exteriors, wiring, plumbing, etc. It should help.

http://www.hilotrailerforum.com/f49/...-classic-2016/

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