Mariner 115... What Should I Do???

[ugadawg187]

Ok guys i bought this motor for a few hundred bucks to replace my 135 that got stolen. I also lost parts of my merc control box internals to that theif so i havent tried to crank the motor yet. All i was told about the motor is that it was ran in salt water at some point & that it ran but the carbs need adjusting or rebuilding, so my ? is where should i start with this motor? What kinda check list should go by & should i just sell the motor for parts rather than take the chance? Ive already pieced alot of the wiring back together where it was cut & wasnt connected where it should be. I cant afford to take it to a dealer. So im here looking for advice.

 

[j_martin]

Re: Mariner 115... What Should I Do???

Run a compression check on it. If it has good compression, it's worth the bother to fix it up. If it doesn't, it's likely a bone.
Compression is checked at brisk cranking speed, all plugs out, throttle held open. Be sure the ignition is killed, or all the plug wires are grounded.

hope it helps
John

 

[ugadawg187]

Re: Mariner 115... What Should I Do???

Thanks for your feedback John ive read alot of threads you have chimmed in on & you know your stuff. With a compression check i have to turn the engine over for about 3-4 seconds right w/o cranking it on each cylinder correct?

 

[stephenhudack]

Re: Mariner 115... What Should I Do???

test the stator too, the stators were not really good in this time range, read about them going bad alot, eventhoug there only a couple hundred bucks

 

[ugadawg187]

Re: Mariner 115... What Should I Do???

Yea stephen ive heard that. The 89 135 i had the mechanic said the stator was low but not shot yet but i did have to replace both power packs.