This only works if your machine has the original salsbury clutch. Not sure how long Salsbury did this. But the serial locking tab located by the 3 bolts that hold the outer cover on has 2 separate larger numbers stamped on it. First one I dont know for sure but may be the month. Second is the year. I have seen this more then a few times on machines with known years and they always match up. The secondary clutch also has a similar tag. Here is a picture of the drive clutch. This one shown is a 1977. Possibly but not confirmed January of '77.
IMG_20131006_083711.jpg
Second will work if you have a Briggs and Stratton powered machine with original engine. The engine ID tag has a couple sets of numbers. Model, Type and Code. The Code has the date. The first 6 digits is the year, month and day. So this own shown was built 03-06-02
IMG_20131006_090239.jpg
Now if the clutch or engine was laying in the factory in between years it may be off a year making your machine a year newer then the date. Not sure how quickly they used the clutches and engines as they where produced.
If your 6/8 wheeler is new enough to have a 17 digit vin number. The 10th digit is the code for the year. Here is the list of codes. ( This actually works for any motor vehicle 17 digit vin number I believe, atv, car,..... )
A 1980
B 1981
C 1982
D 1983
E 1984
F 1985
G 1986
H 1987
J 1988
K 1989
L 1990
M 1991
N 1992
P 1993
R 1994
S 1995
T 1996
V 1997
W 1998
X 1999
Y 2000
1 2001
2 2002
3 2003
4 2004
5 2005
6 2006
7 2007
8 2008
9 2009
A 2010
B 2011
C 2012
D 2013
E 2014
F 2015
G 2016
H 2017
J 2018
K 2019
L 2020
IMG_20131006_083711.jpg
Second will work if you have a Briggs and Stratton powered machine with original engine. The engine ID tag has a couple sets of numbers. Model, Type and Code. The Code has the date. The first 6 digits is the year, month and day. So this own shown was built 03-06-02
IMG_20131006_090239.jpg
Now if the clutch or engine was laying in the factory in between years it may be off a year making your machine a year newer then the date. Not sure how quickly they used the clutches and engines as they where produced.
If your 6/8 wheeler is new enough to have a 17 digit vin number. The 10th digit is the code for the year. Here is the list of codes. ( This actually works for any motor vehicle 17 digit vin number I believe, atv, car,..... )
A 1980
B 1981
C 1982
D 1983
E 1984
F 1985
G 1986
H 1987
J 1988
K 1989
L 1990
M 1991
N 1992
P 1993
R 1994
S 1995
T 1996
V 1997
W 1998
X 1999
Y 2000
1 2001
2 2002
3 2003
4 2004
5 2005
6 2006
7 2007
8 2008
9 2009
A 2010
B 2011
C 2012
D 2013
E 2014
F 2015
G 2016
H 2017
J 2018
K 2019
L 2020
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