Sudden throttle issues, Stihl BG55

[Chris Meutsch]

I have had my trusty blower for nearly 7 years now. Always Stihl 2-cycle oil in the proper mix with 89 octane gas, along with a dose of Stabil.
Zero issues, ever.

Last time I went to use it, it starts up as always but now a steady stream of smoke out of the muffler. That was NEVER the case before. Also, once warmed up, I cannot WOT or it bogs down.
I searched around online and universally the symptoms point to the spark arrestor being clogged with carbon. I removed mine and while the screen is black, it is COMPLETELY clean and clear.

Can't figure out what happened.

 

[Kamele0N]

Buy new set of membranes...and reset carb!

 

[mech_tech]

Agreed...sounds like the diaphragm in the carburetor has stretched over time and needs replacing. Most small carbs for these little 2 strokes can be bought for around $20 dollars...so its easy to replace.