On May 17, 11:45�am, DerbyDad03 wrote:
I need some advice from the small engine gurus in this group.

The History:

My Ryobi 340BV blower ran fine all during the fall. Towards the end of
the season, I had started it multiple times over the course of a
couple of hours, so it was fully warmed up.

I shut it down for a few minutes and it wouldn't start back up. It
turned over, but wouldn't start, no matter where I set the 3 position
choke.

I tried to start it a few times over the next few days, making sure it
was cold and following the cold start procedure. No luck, it wouldn't
start.

It was the end of the season, so I dumped the gas and stuck it in the
shed, where it's sat for the last 4+ months.

The Current Problem:

Yesterday I pulled it out, changed the spark plug, sprayed the
carburetor with cleaner and put in fresh 32:1 gas/oil.

I pumped it up, closed the choke and it started on 3 pulls.

The problem now is that it only runs with the choke fully closed. As
soon as I move the choke lever to Partial or fully Open, it gives up a
deep throaty sound for half a second as it stalls. It's almost like a
kill switch. There's no surging or rough running, it just shuts down.

I let it warm up until it started to labor a bit and then tried to
slowly open the choke. As soon as the choke started to open, it
stalled.

I can start it over and over again with the choke closed, but I
obviously can't run it that way.

Any ideas would be appreciated.

Thanks!

Your basic problem is the mixture of fuel to air ratio. There are many
things that cause this condition. To fix the problem you must do all
of the following:

Make sure all screws are tight that hold the carb, crank, and any
other screw that may allow air into the cylinder.

Make sure the gas tank vent is working properly.

Replace the fuel lines and make sure the fuel filter is attached. They
become brittle, they are cheap. Hint: when replacing the fuel lines,
cut at an angle. This will allow it to pass thru the holes much
easier. Buy the correct size.

Replace the plug. I know you said it was new, but trust me on this.
Plugs can become useless if too much gas gets on them, therefore not
allowing the full electric charge to produce the spark required. Also,
even new plugs can be bad.

After doing ALL the above, you can try to start it. If you have the
same problem, you must dis-assemble the carb and blow out all the
passages. There are only a few parts. Take pictures at each step if
you don't feel confident. Reassemble. Take plug out and check for
spark to make sure you didn't "gas foul" the one you just put in.

That should do it.

Hank