OMC manual/service/how to

[Makedust]

I was searching online on amazon, ebay, etc, for some OMC sterndrive literature and i was wondering which would be the best one to get. Seloc, Clymer, Ken Cook, etc. Ive seen some for as little as $20 to as much as $150 for an original service manual. Which manual would give me the best info for a 1978 omc 140 with stringer sterndrive and would it be wise to get a Chevy service manual for the engine and carburetor?
Thanks.

 

[jbcurt00]

Ken Cooke sells OEM manuals, worth the price

 

[Lou C]

Agreed I've had the 4.3 Cobra for 18 years and used the factory shop manual many times. Paid for itself very quickly!

 

[Scott Danforth]

the one and only source for factory OMC manuals https://www.outboardbooks.com/brand/OMC/

the manual will have everything you need. Not sure where you would get a GM service manual for the industrial only engine used in marine service. mostly there was only parts manuals.