20 Most Recent Kohler 20 Hp OHV Command V-Twin Engine Exmark Navigator-ZTR-Comm.R Questions & Answers

does the engine idle when throttling down,if not you may have a worn governor or incorrect spring and or linkage settings.

Check for the switching pulse at the coil input terminal. It should be less than the battery voltage but not zero, or pulsing in sync with the engine (if you know the spark dwell angle, you can calculate the voltage by multiplying it by the number of cylinders, dividing by 360 degrees, then multiplying by the battery voltage). If you don't get any indication that the coil is being switched to ground to generate the spark, your distributor contact (for mechanical ignition switches) , magneto or electronic ignition module could be the problem. Before changing whatever one of these you have, double-check the wiring to the coil - a misplaced, broken or loose wire will have the same effect.

If there's no spark, then either the spark plug has come into contact with gas, or the ignition coil is bad. Try either replacing the spark plugs, or removing the old ones and seeing if the tips are damp.If replacing them doesn't work or the plugs are dry, then try replacing the ignition coil.

sounds like the carb has a problem with one of the jets. You need to remove the carb and rebuild it.

there is a piece next to the flywheel tha has a magnet and grabs resistence that may need replacing. I had this happen on mine. call your local repair shop and ask. I found the answer to mine on youtube and replaced it in about an hour,

Usually a solenoid or battery issue. may be the flywheel too. It does turn and the flywheel on top spins horizontally, yet it will not catch? if so then it may need a solenoid next to the flywheel which grabs resistence as the flywheel spins. cheap fix and on youtube.

Here is a user guide, though I suspect you have one. It is the only source of programming information I can find. Version 1.5 May 2008 (onlinehome.us Chipper Champ 2 ' Chipper Machine ' TCSJOHNHUXLEY

Ensure the membrane is protected with sand before laying the stone to avoid piercing the membrane.