N o clue what's wrong! Start new thread for a new topic--jimh. Can you also post photos of the decals on the cover and of the 4 sides of the motor with the cover removed? I just got a boat with an old Johnson motor. A serial number indicates the numerical sequence that the motor was manufactured, while a model number identifies the style and manufacturing details of the motor. In this case, the powerhead freeze plug can be located and will have the serial number. That is a truly wonderful engine. Can any one tell me what the year model is of the motor? I left out the 1970 to 1980 numbers.
The information, software, products, and services published on this web site may include inaccuracies or typographical errors. I am trying to figure the year so I can order parts. It is 5 hp at the powerhead. I am almost positive 1979 and 1980. I'll try to be as complete as possible below, while keeping this reasonably simple.
All Johnson outboard engines from 1955 to 1979 are essentially identified in the same manner, with later models containing extra information within the code. Maybe one of you can help. We need all sides to help determine the age of the motor. This is only for a 1980 model year or after 1980. I went to the boat place and they could not identify the year.
I am doing the same job on the same engine at present. What makes people think old outboard serial numbers are exempt from common sense? They are nearly silent, start on the first pull,and run smooooth. By the way, lower end lube came out clean, no water or debris. Try the web site route. There are 2 locations where you may find this number.
Changes are periodically added to the information herein. Is there any way to check block casting 's for year of manufacture? I scored an old 50's-ish johnson 5 hp outboard at an estate sale for a few bucks, but it's missing the label plate. The J4C is improved, though. Seems my ball park is somewheres between 1962 and 1970. To sort chart by column Year, Model, etc click on the desired column heading. Serial number labels will reference the date of manufacture for the engine by providing visibility of the month and year the engine was produced.
Someone will eventually ask you to identify your Johnson outboard. How can I tell if it's running hot? It is rare that small engine gurus recommend overriding manufacturer recommendations. Basic discussion forum manners: You post your article once, you wait a day or two before posting again. Great engines basically a revamped 6hp and I own 2 of them. You can see if the powerhead has been replaced or if it matches the number on the transom clamp.
If that fails, all is not lost. Any insights would be greatly appreciated. One per customer would be appreciated. It has a pull start and also a starter. Johnson has used an engine's model number to indicate year of production in different ways over the years.
W e don't make parts for those. I searched for the model number but was unable to find one and it appears that the plate was removed. Sometimes there is a quarter coin sized aluminum plug on the engine block that has numbers or a model number stamped onto it. Model 10R78M the M appears very skinny on both transom and freeze plug Serial E4837093. This motor was thought to be about mid 80's by the seller but he is evidently way off. The serial number of an Evinrude outboard motors engine is printed on the nameplate posted on either the transom bracket or the motor itself.