tallfarmboy
ArboristSite Guru
Working on a very high hour 394xp... Had a cracked intake block, replaced that, but the saw still won't idle down like it should. I blocked off the outside of the carb, between the filter elbow and carb housing with Gorilla tape and pressure test found a big leak at the throttle shaft. Anyway, I know that throttle shafts will leak a bit... But, please tell me that this is excessive and would cause a fluttering idle... LOL
Video of the pressure test and soapy water.
Video of the pressure test and soapy water.