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What's the difference between a Haynes owners workshop manual & a service repair manual? - repair manual for pavt234aww

I have 2 1984 Suzuki GS 125 bicycles must disarm, and a (hopefully repair) on a machine. I do not know the difference between holding a Haynes workshop manual and service manual to repair it, if necessary, but would a detailed and comprehensive book, which require as far as my knowkedge the staple food limited.