by 38racing » Tue May 15, 2018 10:22 pm
A friend has a 130292-3220 91... on a rear tine tiller. It ran fine last year when I replaced a tine seal. This spring he said it only runs if put gas into carb. I realized after bringing it home that it has adjustable high speed. I opened it up a bit but no change. It needed almost full choke. I changed the pump diaphragm . Old one was the plastic type. I replaced with rubber. After priming with carb cleaner it started and was running fine. I adjusted needle . About the usual 1 1/2 turns out. IIRC I did a couple stops and restarts. Then, while still running, I added some of my homebrew 'seafoam'. I let in run for at least a few minutes, maybe even longer. Then I shut it off. Later when I tried to restart it went back to original state, needing choke to run. Figuring it had old gas and maybe IODeed on amount of homebrew I added (although it had run with out even adding choke) I sucked all fuel out of tank and filled with fresh gas. No change. I removed the carb. There was fuel in well so I believe new pump was still ok. The screen in large pickup tube is clean as passes fuel spray. This carb had fixed jet in bottom of pickup tower. So I decided to test out my new ultrasonic cleaner. Used mix of water and dish soap. Ran heated for 480 seconds , twice. Then once non heated. No idea how long I should have done it. ready to re-install but had to order a tank gasket. I was wondering if there should be a screen over the pickup tower. I've seen them on some push mower carbs. There was none on this carb and the IPL does not show one