Keep in mind that the c1u number is the series of the carb. Each carb has another number that is referenced for the actual carb settings as far as how far out and in you turn the screws as well as the idles RPM. GeorgeKeep in mind that the c1u number is the series of the carb. Each carb has another number that is referenced for the actual carb settings as far as how far out and in you turn the screws as well as the idles RPM. George
My 'painful' experience of a Zama C1M carburetor on my Stihl SH86 leaf blower is the fact that the fuel filter in the tank is far too efficient. It looks like a normal nylon gauze filter but there is another "felt" filter inside; this second filter is easily blocked (even by too much oil in the fuel mix) causing weak running and poor starting. My advice is to remove this second filter!! Before I found the root of my problem - I took the airline to the carb - DON'T!!! The white flange under the fuel primer bubble contains a minute fuel non-return valve and the airline completely destroyed the fuel pick-up. This is Stihl Part No 4241 120 2200 and it cost me £24. All OK now....but thanks for running these 'HELP' web sites. **** H
Answers & Comments
Try this link. It has the carby settings on page 26 & 27 of the Stihl FS 45 manual.
http://www.mccoyslawn.com/parts-manuals/Stihl/FS45_46_Manual.pdf
Keep in mind that the c1u number is the series of the carb. Each carb has another number that is referenced for the actual carb settings as far as how far out and in you turn the screws as well as the idles RPM. George
My 'painful' experience of a Zama C1M carburetor on my Stihl SH86 leaf blower is the fact that the fuel filter in the tank is far too efficient. It looks like a normal nylon gauze filter but there is another "felt" filter inside; this second filter is easily blocked (even by too much oil in the fuel mix) causing weak running and poor starting. My advice is to remove this second filter!!
Before I found the root of my problem - I took the airline to the carb - DON'T!!! The white flange under the fuel primer bubble contains a minute fuel non-return valve and the airline completely destroyed the fuel pick-up. This is Stihl Part No 4241 120 2200 and it cost me £24.
All OK now....but thanks for running these 'HELP' web sites. **** H
I neeed an assembly diagram for a Stihl FS90R Model Weed Eater