Green boat mechanic needs help getting started

[el_grimmys]

"Hello, I've recently boug

"Hello, I've recently bought a bass boat with a mercury mariner 40 magnum motor, serial #0c202592. I've looked all over to find the year and specs of the motor without any luck. Also, can anyone recomend the best site to buy parts. I would like to get a good manual for it to repair the trim which makes noise like it's trying to work, but doesn't lift the motor. thanks"

 

[planomark]

"Hi Lane,

I'm about as

"Hi Lane,

I'm about as green as anyone but have found this link helpful for determining year by serial number: http://www.marineengine.com/mfr/mercury_models.html

Also, for manuals and parts, this site offers a good search by part numbers and repair guides.

Parts search: http://www.marineengine.com/parts/sierra_marine/mercury_mariner.html
Service guides: http://www.marineengine.com/manuals/seloc/mercury.html"

 

[el_grimmys]

"Thanks Mark for sending me th

"Thanks Mark for sending me those sites. Unfortunately the serial number guide only goes up to 1990 and I think mine might be a newer model and so was'nt on the list. I'm not even sure if I have a two or four stroke. Is there a way to know by just looking at the motor? Again, thanks Mark, I'll definately be using that parts link once I know what motor I have."

 

[galamb]

"Lane, your "Magnum" w

"Lane, your "Magnum" which was just a "cool" name that Merc put on the model is a 1989. It was also configured as a Jet Drive (30 horse, due to the power loss with a jet)

It is a 2 stroke, 4 cylinder model.

Here's an OEM parts link with diagrams, parts numbers and prices - just follow the link exactly and you can find anything you might need...

www.mercruiserparts.com/selectDocs.asp?doc_nbr=814698"

 

[el_grimmys]

"Graham, I really appreciate y

"Graham, I really appreciate you taking the time to give me the info on my Magnum 40hp. Once I get the manual, I'll start fixing the motor's problems and I suspect posting more questions on this site (which I'm glad I stumbled on)."

 

[benjamin_jones]

"Hi there Lane,

Always reme

"Hi there Lane,

Always remember to use a 50:1 fuelil ratio.

I say this as you seemed uncertain as to it being a 2 or 4 stroker. I've seen guys fry a 2 stroker because they did not know it had to be pre-mixed...

Happy boating, winter on it's way here now...

All the best!"