Re: Firestone 3.5HP

[bigdog]

New forum member here…

We inherited the family farm 3 years ago and are finally getting through the last of the junk that has accumulated there since at least the early 1900’s.

In the basement I found an old Firestone 3.5 HP 10-A-2 boat motor. It was probably the motor for the 1969 15′ aluminum Rich Line boat that we found. The engine’s Code No. 133-7-477, serial number is: 477-220209. I was fortunate enough to also find the Operating Instructions Service Manual.

I pulled the starter cord and the engine turned over which was what saved it from the scrap metal bin. I figured I’d change the oil, put in some new gas, change the spark plug and see if it starts up. That’s where I got stuck. I see the spark plug is a Firestone F-50-LF. I did some research and I can’t seem to find a modern equivalent so I can replace it.

Would anyone here be able to direct me to the right modern spark plug or should I just pull it, clean it, check the gap and put it back in?

Thanks! 🙂