During the week my 870 has started to run a little funky. While on idle it is dropping in RPM then suddenly surges. I was able to be in the back of the van while this was happening. During the lag times, l could hear a light clicking in the exhaust toward the rear area of the TM. The engine would surge and then everything sounded normal. This would happen off and on. My guess is the plugs are starting to foul. After all, its been about three years, probably time to change them. Pulled them and they look a little cooked.
Last edited: