My Craftsman DLS 3500 with 20 hp Briggs & Stratton engine, after a few passes on a side incline, will sputter and stall. Initially, returning it to level ground for a few minutes will get it to start again, but more passes on side inclines will increase the frequency of stalls and length of time between restarts. Independent of that behavior, when operating normally, it will start sputtering as if low on fuel when the fuel tank gets down to about 1/3 to 1/4.
Began last year around mid-summer. Changed oil, filter, spark plug at the beginning of last summer. Last fall, I disconnected the fuel line and checked for obstruction or restricted flow, but it appeared fuel was unobstructed. A friend who is much more well-versed in engine matters suggests there may be an issue with the carb float, but we haven't performed the necessary surgery on it yet to confirm his suspicions.
Any other theories / suggestions are welcome!
Began last year around mid-summer. Changed oil, filter, spark plug at the beginning of last summer. Last fall, I disconnected the fuel line and checked for obstruction or restricted flow, but it appeared fuel was unobstructed. A friend who is much more well-versed in engine matters suggests there may be an issue with the carb float, but we haven't performed the necessary surgery on it yet to confirm his suspicions.
Any other theories / suggestions are welcome!