Recent content by Cfs

I hit the wrong button and sent the above before it finished…. So to get back too it I had the muffler off and cleaned the spark arrester screen and there is nothing wrong with it. I attempted to look at the piston through the exhaust port but it seems that this engine is the Stihl 4 cycle that...

I am attempting to repair a BR700 backpack blower for a friend. My friend brought it to me saying he had it looked at by a local Stihl dealer..who told him it was tied up and needing major engine repair. I removed the spark plug and put an oz. of ATF and a little gas in the spark plug...

Hello I am working on a BR700 backpack blower. A friend brought it to and it was tied up. Rope would not pull. Took the starter off and removed the spark plug and added an ounce or so of ATF-4 and some gas. Worked the crank back and forth a few degrees at a time and it began to move freely...

Yes I misspoke it is acetate. Thanks

Not to answer my own questions. But I just watched a YouTube video on the subject of pump diaphragm materials. I found it searching in my YouTube app ‘Walbro Carburetor Diaphragms’. The guy who did the video identified 3 types. Rubberized which are black and rubbery, Acetone which are the...

I did think it was odd that the lever and spring were not included. I reused the old ones… not ideal. I was thinking that I had read somewhere that the synthetic pump diaphragms, like the electric blue colored one were an upgraded version and replaced earlier styles if they match are the...

Thanks to everyone for their help! After talking with the Echo tech who had nothing good to say about aftermarket carbs; I purchased a k10-WLA rebuild kit and rebuilt the original Walbro WLA-1 carb with an actual Walbro kit. Lo and behold it fired up. It ran poorly and I was able to adjust it...

So I went to a local small engine shop who has a tech who really knows Echo. I was not able to speak directly to him since he was at lunch. The owner shuttled back and forth from the lunch table to the front counter and asked him about my problem. I brought my tablet with a pdf of the IPL...

It has a choke lever on the air filter box. The part on top of the carb echo calls an air valve assembly and it opens and closes via a link based on the throttle position and it fits into another part called a valve assembly. This 2nd valve asby is attached to the cylinder and 2 air hoses run...

I have a PB-500T. Serial P31212136027 I can get it to start if I pour a small quantity of gas into the carb. After it starts it runs great full throttle and low idle. If I do not pour gas into the carb I can prime the carb ( a dozen pumps or more..full choke and pull, pull and pull some more...