I purchased a new Johnson 20hp outboard from a shop in California in 1986. I sold the motor some years later, and the shop is long out of business. I now need to know whether that motor was a short or long shaft. If I had the model number I know that would tell me immediately (by the presence or absence of an "L" in the model number). Unfortunately, I don't have any record of the model number -- just the Serial Number, which is 6180272. Can anyone identify the model corresponding to Johnson serial number 6180272? Thanks in advance for any help or suggestions.

