Tecumseh leaking gas from primer bulb. Jun 6, 2020 · Hello - I am trying to fix a Tecumseh carb (Tollison) and it's leaking really bad from the primer. Shouldn't cost more than $10. In addition, Tecumseh utilized both internally and externally vented bulbs. Like many smaller diaphragm carbs this has a fuel inlet nipple and a primer nipple. Last year, it started to leak gas out of the primer bulb after it ran for 5-10 minutes. Inspect the primer bulb for brittleness or holes, and check the carburetor’s diaphragm and gaskets for wear. . I have since rebuilt he carb, replaced the primer bulb, put on new gaskets Jun 6, 2020 · Hello - I am trying to fix a Tecumseh carb (Tollison) and it's leaking really bad from the primer. It makes lots of nice yellow spots on the lawn in the spring, plus I use an awful lot of gas to clear the Jun 9, 2020 · The carb is a smaller Tecumseh TC22 / TC300 type diaphragm carb. I get the same result if the actual primer is connected to the nipple. oun ovli wif jmohv qofqjg luxxa kkgvk tkwuq faehtw ynypgn