Agreed that castor brings back memories. Just doesn't do a great job lubricating the way newer synthetics and blends do. Gets gooey in the cold and is too thin in the heat. Old tech that was "cutting edge" in the 60's.
I use this:
Works well premixed (EXC 250) or in an injection tank (1970 Suzuki TC250 Scrambler). Very few fouled plugs. NO seizures. ever.
Originally Posted by fallingoff
Amate of mine still puts some castor oil in his same period2t
Brings back memories when I smell it
What is the modern thinking on castor oil
Sniff sniff lol