1982 Johnson 4.5hp parts confusion

[domaotc]

I have a model J5RHLCNR and when I look at the parts list some of the items have 4.5 after them and some have 7.5, for example, "Magneto - 4.5" and "Magneto - 7.5"; why is this?

 

[raczekp1]

Re: 1982 Johnson 4.5hp parts confusion

7.5 has wider flywheel becouse has different starter then 4.5
pistons,carb and exhoust pipe is also different

 

[nwcove]

Re: 1982 Johnson 4.5hp parts confusion

those motors share a whole bunch of parts......so much so, you could use a 4.5 as a parts motor for a 7.5, or vice versa. ( obviously excluding the parts listed as being unique to either)

 

[domaotc]

Re: 1982 Johnson 4.5hp parts confusion

Thanks for the info! Hopefully this makes it easier to find used parts.

 

[nwcove]

Re: 1982 Johnson 4.5hp parts confusion

...and if that motor has a "mix 100:1" decal on it, remove it. stick with 50:1.