Often the after market service manuals tend to cover too many different models and can get a bit confusing, i've had much better results with the factory manual intended for the specific motor.
I do not have the factory manual for my '89 135 Black Max but can attest to the confusion factor of the aftermarket. I currently have a Seloc and find it very confusing in most areas. If you don't know anything about your motor, your better off spending the extra $$ to get the factory manual.
Depends on what engines they are for.<br /><br />Clymer does better on some, Seloc does better on others. <br /><br />I like my Clymer for '73-'89 48hp and up JohnnyRudes, But neither is as complete or informative as the factory manuals.
I buy both for every engine. Since neither one covers anything 100%. It's best to have both if you never plan to take your engine to a shop for repairs.
Mister Dane, may I call you Great. I caught your post on the restoration board. Are you Danish? I hope that is not political incorrect to ask. Recently, there was a similar question ask regarding the best place to buy a rebuild. The conclusion was depends on what you bought.... <br />I know that the Danes are lovers of language and that any Dane worth his salt speaks 3 or 4 and it appears that your command of the English language is sufficient to make use of information correctly stated. The Mercury Manual I bought is far from being ideal. I understand that the after market books are directed at the avocated rather than the professional mechanic. To be frank, you could buy all three and be just as confused as you were with one or choice of none.