by lefty » Thu Aug 26, 2021 3:40 pm
I have good news. No, I haven't solved the problem but I did find a local supplier that is willing to order parts without charging shipping. So I was able to try the spring for a reasonable price without having to pay 150% of the price for shipping. I"m super happy about that.
I still have my problem though and wanted to just recap to make sure I didn't forget anything.
When this first starts, it surges badly until it's warmed up. About a minute or so. After that, if I go to idle and then back to full throttle, it surges badly for about 10 seconds before leveling out.
During all of this, cold or warm, I can hold the engine steady by bypassing the governor spring with my hand. I think this isolates the problem to a governor issue rather than fuel. At no time, does the engine surge when I hold the butterfly by hand. I can change between RPM's with ease and no surging.
Is it possible for the internal governor to create this condition? The machine is likely not worth opening up for that. The owner would likely not want to pay for it given the age and the fact that he has another machine. I'm just trying to make sure I've done everything. The reason I haven't tried a new carb is that when I hold it by hand, everything is fine. Does anyone think I'm missing a fuel issue here? I went through the carb twice already cleaning it.
Thank you