Quote Originally Posted by PK View Post
It is dangerous if you put too much in and crank it over with the spark plugs installed.

Couple of squirts in each cylinder, wait and then first crank over with the spark plugs still out, and you are fine.

PK
+1. I stuck shop towels over the holes for a few cranks to get out anything that might still be sitting. Afterwards, I stuck the old plugs back to smoke everything out.