Quote:
Originally Posted by 3lbgrayling
Sedgeking
Be interested in the website as I have 2, 4HP twins.And both are needing spares.Or I may flog them as spares.
The twins are so much smother than singles.
Jim
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Hi Jim
What's wrong with them?...or missing? I may be able to help
Anyway this should help you find out year of manufacture:
Johnson has changed how they indicate year in the model number several times. Depending on the year range your motor falls into, you will find your Johnson engine year information differently.
1980-Present
Engines since 1980 use a two letter code at the end of the model number based on the following key :
I = 1
N = 2
T 3
R 4
O 5
D 6
U 7
C 8
E 9
S = 0
For example the 'CE' at the end of 100STLCE indicate that the engine is from '89'.
If your are still unsure of your engine year, search for your model number on the Johnson 1980-later serial number year chart located here.
1969-1979
The actual year is found in the model number, not the serial number.
For example, 150TXL78 is a 150hp engine from 1978. 65ESLR72 would be from 1972.
Pre 1969
For engines prior to 1969 refer the the Johnson 1960-1979 serial number year chart located here.
If your unsure after reading the above you could post your serial numbers and I'll do it

. the serial number is on the aluminium plate on the leg.
Other letters in model number indicate features....eg ES -elec start RP rope pull etc
J4 would be Johnson 4Hp J8 = Johnson 8 etc