Only possibility I can think of is an ignition coil. Have seen quite a few coils start to make the engine buck after it is warmed up. Usually runs great until the engine heats up and the coil actually heats up and opens internally.
Just an option
1 - 1 of 1 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.