Stihl bg55 blower wont run

[Welderman85]

My older neighbor brought his stihl bg55 blower over for me to look at. He said it bodlgs while running and wont hit full throttle. We'll i cant get it to do anything. I cleaned the carb then just replaced it because it was still flooding. New plug and checked for spark and still nothing not even a pop. Any ideas

 

[Shane¹]

Good compression? Check to see if muffler is plugged up?

 

[GMB74]

Muffler screens commonly plug up with carbon on these, especially if they are constantly goosing the trigger, revving them up and down and dumping unburned fuel into the muffler. Vroom vroom vroom. Pull the screen and clean it with a propane torch. If that doesn't work pull the muffler and check the piston for scoring.

 

[Wilhelm]

It transformed into a sucker!

 

[a3fins]

Did you replace it with an OEM carb?

 

[amateurarborist]

Does the primer bulb fill at least halfway? Those OEM zama carbs are junk. I had a BG86 that ran very lean brand new. Wife ran it a couple times and then commented it was hard to start. Muffler was blued after 2 uses. Turns out the primer bulb would only fill to about 2-3mm of fuel in it, so something was wrong with the circuits or diaphragm. I took it apart, cleaned, checked fuel lines and filter, everything easy, and it still wouldnt fill right. Ended up getting the carb warrantied. The replacement carb would fill about 2/3 full and stay that way during operation. It's still a disappointing blower, but at least it runs now. If the primer bulb doesn't fill at least halfway, I would get a new carb...and honestly I would get a Chinese amazon special rather than Stihl/Zama OE carb. Handheld Stihl blowers are the most disappointing thing stihl makes IMO.