Weedeater carburator setting on bolens 31cc

Strip and clean the carburetor. The main jet is blocked.

Bolens BL410 21BK410G163 Tiller Parts
Try that out

1. check the spark plug
2. check out youtube video
How To Troubleshoot Your Weedeater to crank every time

How old is it? Does it show a spark when you remove plug an hold against engine while pulling cord? Did you replace plug? It is the most common problem. Remove the stop wire an try to start, if it does or you see spark the switch is bad. I would check put these things before replacing module.

The gap for the Weed Eater 20cc engine can be set @ .025". The larger engine Ryobi 31cc/32cc class can be set @ .030" Either engine would operate within that .005" range and I know a 32cc Poulan calls for a .030" gap.

Make sure your lines have been hooked up correctly. Take a look at the sketch and see if yours looks like this.

My Bolens Weedeater runs for 3 or 4 seconds and stop but it will run only if I drop some gas in the caburator then stop. Can you help me with this problem?

Norris.

Typical fuel line routing is:

One line (the one with the fuel filter in the end of it) comes out of the fuel tank and goes to the bottom fitting on the carburator. The second line comes out of the tank and goes to the bottom fitting on the primer bulb. The third section of line goes from the top fitting on primer bulb to top fitting on the carburator. Hope this helped and best wishes.

I was able to get information from someone's manual. I can't find mine. Would like a manual.