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BR550 carb adjust tool

gmcman

gmcman

ArboristSite Operative
Joined
Aug 11, 2006
Messages
403
Location
VA
Looking at my buddies blower, appears to have a replacement carb. Looking at the adjustment screws they looked smooth on the top is there a special tool for this?
 
Modifiedmark

Modifiedmark

Tree Freak
Joined
Dec 2, 2007
Messages
18,547
Location
NW Indiana
Yes there is, it's just a thin walled nut driver in reality. I just bought a cheap nut driver and turned the end down in my lathe thin enough to go in it. Sorry, but I don't remember what size it was.

I'm not surprised to hear it has a replacement carb, they were pretty much junk.
 
gmcman

gmcman

ArboristSite Operative
Joined
Aug 11, 2006
Messages
403
Location
VA
Ok, thanks. Sounds like it's not running at full rpm, what is the operating range/limit and does it have a rev limiting coil?
 
earlthegoat2

earlthegoat2

ArboristSite Guru
Joined
Aug 20, 2016
Messages
693
Location
SE GA
4mm nut driver.

Wiha makes them among others. It's a good use to buy the carb adjusting kit on amazon. It has 8 or so different drivers for all those wacky adjusters
 
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