http://products.jacobsen.com/img/manuals/605586.pdf
Go through this manual which contains all the info on plugs, float and carb info. I dropped something on my plastic cap on the carb which broke off its tab.. Officially I believe it's called a low speed idle adjustment. I pulled mine out, cleaned it and screwed it in and backed it oout about 1 1/4 turn.
Kantukian...... Technically, you've hijacked the thread. Copy yours as a new thread and we'll see what we can come up with. Thx