Johnson Colt. Where is the Model number?

[vashonMike]

I just got a Johnson Colt. It needs some work on it, but i haven't found any model number or serial number on it. It does say "Mate" on the front of the engine and on the fuel tank, if that provides a clue.
How do I determine the age?
Thanks
Mikde

 

[vashonMike]

Re: Johnson Colt. Where is the Model number?

Upon looking closer, it appears that there are two tiny nuts on the base of the motor that look like they probably held a small plate at one time. If that is the case, how would i age this motor without that?

 

[Al-53]

Re: Johnson Colt. Where is the Model number?

Look on the engine..there should be a nickle sized disk..called a welch plug..it is a silver color...it may have both the model and serial number on it....they are usally near the cylinder area...by coils or on top

Al

 

[vashonMike]

Re: Johnson Colt. Where is the Model number?

There are a couple of numbers on the welch plug.
2102 A
E02155

Can the age be determined by one of these numbers?

 

[vashonMike]

Re: Johnson Colt. Where is the Model number?

Thanks for the help after searching around, it looks like the "2102 A" number on the welch plate refers to a 1973 model.