Nov 10, 2014 #1 I had a problem adjusting the carb on a Stihl BG 86, a US model that should have limit caps on the H and L adjustment … Pay special attention to the safety precautions outlined on pages 4 to 9. The carburetors used almost every Stihl power tool is called an all position diaphragm with integrated fuel pump. I’m not referring to the standard 4mm hexagon they’ve used for a while, it’s a new octagon screw they’ve started using. This is especially true in low humidity and high dust conditions. Thread starter Dieselcamino; Start date Jun 6, 2018; D. Dieselcamino ... Only a small amount of adjustment is available even when the caps are off. Starts in 1-4 pulls and runs like new. WARNING Small particles (e.g. The purpose of the carburetor is to mix air and fuel before it's ignited in the chamber. But thats the end of the story. Took 5 minutes to install with all new gaskets provided, it was virtually identical to Stihl’s Chinese-made original carb. Page 19 • use only spark plugs authorized by Use only resistor type spark plugs STIHL (see “Specifications”). Purchased a new Stihl SH-86 blower, shredder, vac in May 2009. Retuned the carb with a tach after a few tanks of gas. Repair your Stihl Leaf Blower Carburetor for less. Only Stihl dealers can order them, as of 8/14/2012, but that could change. Thread starter kevincp; Start date Nov 10, 2014; K. kevincp Forum Newbie. dust) blown through the blower tube and nozzle can cause a static charging of the blower tube. 80% of the mix goes via a fixed jet. Not a shred of trouble with it. When I richened up the carb, I didn't even hit the limiter stops on the carb adjustment screws. Fast, same day shipping. Added gas, a few pumps on the prime bulb, off she went on the second pull. STIHL servicing dealer. Joined Nov 10, 2014 Threads 1 Messages 1. Fresh gas, and fucking with the the adjustment on the carb over and over , I got it to run once for about 8 seconds before dieing as a best record. To receive maximum performance and satisfaction from your STIHL blower, it is important that you read and understand After putting a new air flilter, ignition coil, and spark plug in, I finally got the saw(ms391) to finally fire. Find Stihl Leaf Blower Carburetor Parts at RepairClinic.com. Allow only persons who understand this Manual to operate your blower. Adjust- ment of maximum engine speed is not necessary. Stihl BG86 carb adjustment. unfortunately the tool I’m talking about seems to be one Stihl have made this year, and isn’t actually found anywhere online or in any of the kits. safety instructions for all STIHL BR 320, BR 320 L, BR 400 blowers. The latest Stihl carburetor adjustment tool that I've seen is a hex shape, thin-walled tool that fits over the needle in a similar way as the single & double "D" or the spline needles. 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