vendredi 29 août 2014

721D running rough at 1/4 tank

This problem just started...Mower runs fine for an hour then the rpms drop and almost dies, wait a minute and the rpms pick up and when you start moving the does it again. Looking at the fuel return line you see that there is not a lot of fuel running through the line, even looks like the fuel is just laying there. If I fill the 9 gallon tank up, the mower runs fine till you get below 1/4 tank. I thought maybe water was in the fuel but that wouldn't make sense since it only runs rough at below 1/4 tank.....Any suggestions would be greatly appreciated....Thanks!




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