Re: website to download a johnson 140 service manual??
As far as a manual , to download. No, such thing. They're under copyright. You can look at e-bay, or Ken cook site.
You may find one cheaper on e-bay.
Sometimes the carb kits, have alittle instruction sheet in them.
If your familiar , with carbs in general, it shouldn't be too difficult for you.
You really do need to get a OEM manual, for your motor.
Or at least a clymer, seloc, etc. Though the information is at times vague, for any specific motor.
As they cover several years, and motors.
Some of the online parts houses , have detailed parts drawings you can look at.
If thats all you need . I believe one is, boatparts.com . Google outboard parts or search here .
The site name, is not coming to mind, if the one I posted isn't it.
KYHunter