by bill18163 » Wed Jun 17, 2020 3:55 pm
I'm still working on this Stihl FS130 trimmer and I need some input on the carburetor. I have rebuilt a lot of these small carbs over the years but I am having trouble with this one. It's a Zama C1QS130C. I disassembled it and cleaned it up with carb cleaner squirting the cleaner through all the small holes etc. Then I ran it through my electronic cleaner bath three times. Put it back together and it will not throw fuel into the combustion chamber. Pull all you want and no gas on the plug. Tore it down again and put the breakdown drawing right in front of me and reassembled it per drawing. I had it right the first time. It won't feed fuel. I bought a $11.00 carb off ebay and put it on the machine and it fired right up. Quality is bad. I had to drill out the throttle cable retainer so the cable would slide in and I had to grind some material off the impulse port so it would slide into the hose. Fuel adjusting screws are stiff and hard to tell when they bottom out when trying to get initial setting. Anyway the Chinese carb works but not as good as the original. Question is what am I missing on that original Stihl carb? Why won't it feed fuel?