Broken magnets

[Roberthill]

1976 25hp Mercury serial #5842749
Outer magnets busted in flywheel,question can these be replaced ,if so where can they be purchased at? Or should I look for a used flywheel?

 

[racerone]

Your location ?

 

[Roberthill]

Your location ?

Pasadena, Texas

 

[racerone]

A 1976 model 25 HP ??------Any pictures of this motor ?----Part # of the flywheel ?-----Google that part # and see if one is available on E-BAY.

 

[Roberthill]

A 1976 model 25 HP ??------Any pictures of this motor ?----Part # of the flywheel ?-----Google that part # and see if one is available on E-BAY.

I found a couple on e-bay. Part #258-859232T15 . Seems a waste not having magnets available. Don’t have pictures. Thanks for your help.

 

[racerone]

Flywheel in the picture does not look like the flywheel off a 1976 model.----Do not believe there was a 25 HP in 76.-----Should be easy to find a flywheel.

 

[Roberthill]

Flywheel in the picture does not look like the flywheel off a 1976 model.----Do not believe there was a 25 HP in 76.-----Should be easy to find a flywheel. Yes Mercury has a 25hp 1976 . That picture is for a 1976 25hp.

 

[racerone]

Obviously I know very little about motors and years they were made.----- I will step aside now.-----But show me where a 1976 model 25 HP is listed !!!

 

[Roberthill]

Obviously I know very little about motors and years they were made.----- I will step aside now.-----But show me where a 1976 model 25 HP is listed !!!

My son brought this motor over for me to look at , he told me it was a 1976 and I found a listing for a 25hp using the serial number , but you have got me thinking that he got the wrong year , will check into this in the morning .

 

[merc850]

No 25hp in 1976 the small motors go 4.0-4.5-7.5-9.8(110)-20-40 hp.
It shows up in 1980 along with an 18, new to the lineup.

 

[dwco5051]

25 2 1467499 1962
25 2 5705532 1980-81
25 2 5942041 1982
25 2 6185159 1983
25 2 6453343 1984
25 2 6593849 1985
25 2 A911346 1986
25 2 B114231 1987
25 2 B238464 1988
25 2 B385500 1989
25 2 C221500 1990

 

[Roberthill]

A 1976 model 25 HP ??------Any pictures of this motor ?----Part # of the flywheel ?-----Google that part # and see if one is available on E-BAY.

 

[racerone]

Most who know would instantly recognize that to be a 1981/ 82 model.----The 76 model 20 HP motor is totally different with different unique decals for 1976 models !!

 

[Sea Rider]

1976 25hp Mercury serial #5842749

Is it a Sea Pro, Marathon 25 HP model ?

Happy Boating​

 

[flyingscott]

That flywheel is extremely common just buy one and go boating. That will be neither a Marathon or a Sea Pro.

 

[Roberthill]

That flywheel is extremely common just buy one and go boating. That will be neither a Marathon or a Sea Pro.

Got one on order , suppose to be here Saturday. Probably going to have more issues, lot of neglect on this motor.

 

[Roberthill]

25hp Mercury serial #5842747 (1980/81 I think)
Don’t know where to start . Flywheel magnets are cracked , but I was told shouldn’t hurt , I do have another one on order. Right now there is no spark to plugs. Is there anything that I can do or should I wait on flywheel replacement?

 

[flyingscott]

Make sure any kill switches are working properly

 

[racerone]

Do a complete evaluation of this motor before spending your beer tokens.------On those models 9 out of 10 have needed a new water pump impeller.----At least on my work bench.----Compression test first !

 

[Roberthill]

Make sure any kill switches are working properly

I disconnected the kill switch wires from the tiller handle to the switch box assembly.

Make sure any kill switches are working properly. I’ll have to rent a compression gauge.