Honda mower engine surges/pulses?
I have 2 yr old residential. Can't remember the model but it has the composite deck and hydro drive. One model up from the Harmony, I believe. Great for 2 seasons, however, it now surges and will not idle at all. Runs fine under a load and will idle half decent with the blade engaged. You can see the governor arm moving fore and aft as it pulses/surges. Checked the plug and looks good (no soot or carbon buildup)drained the carb bowl and put in new gas. I run Stabil in the gas. Do I need to check the carb jets or is this an issue with the governor? As far as the idle, it has been like that since new. Also, how can you check the full throttle rpm? Thanks, Smez