Force 120 or 125?

[Bgbbgb246]

I've purchased 2 force 120hp motors (i think). They were cheap with good compression. They allegedly run but one developed a miss and the previous owners mechanic told him that forces weren't worth investing any money into. So long story short, he re-powered and i bought the motors for a few hundred a piece.

now the cowel graphics show force “120” so i figured that meant it was from the 90s at least. Wanted to confirm with serial numbers before looking into parts and thats where i got confused. A “foundry” stamp on the lower cowel shows “89”. “Foundry” stamp on air intake below lower carb shows “87”. An obviously aftermarket ignition pack shows compatibility with year 88-91 force120/125 motors. Mid section has been repainted and i dont see any serial number on it. So yea, im not sure.

Can anyone tell me anything with these pictures?

 

[jerryjerry05]

The Black/blue motors started in 1987
The 125 was made until 1989 then changed to 120.
No difference just a different rating. One measured at the prop the other at the block(I think).
The Ignition packs are Blue they are OEM until 1990 then they came out with Black packs/coils.
The black coils had different connectors so they couldn't be used with the blue packs. I understood they were different but would work if the connectors were removed and wired direct.
The year can be found under the pack/coil on the block, there's a foundry stamp under there.
Good luck, I've always been a fan of Force motors and have owned a bunch of them.
Unfortunately they didn't hold up when used in salt water.
They ran great just the transom bracket and T@T didn't like the salt.

 

[Nordin]

Just want to correct jerry at the spec. of the engines.
The 125Hp had 3,312 in bore, the 120Hp had 3.375 in bore.
Except for the 1990 120Hp A model which had 3.312 in bore.
The stroke was the same of both.

 

[The Force power]

Do you have the lower-units for them? if so they will be a one piece shaft & single exhaust meaning no through prop exhaust (if original)

 

[The Force power]

Just want to correct jerry at the spec. of the engines.
The 125Hp had 3,312 in bore, the 120Hp had 3.375 in bore.
Except for the 1990 120Hp A model which had 3.312 in bore.
The stroke was the same of both.

The good thing; all exterior parts are compatible and if only one motor is needed, you have a wealth of spare parts