I need to replace the cellinoid on my Murray riding lawnmower. The battery is good. Will start if I jump from the starter and turn the key on. I have been told it is definitely the cellinoid but I don't know how to replace it.

Kim K, April 2008

The solenoids usually have 2 thick wire connections (probably red) - one from the battery and one to the starter motor. It will also likely have 2 thin wire connections - one from the ignition switch and one to earth. There could also be more than one wire connected to these terminals. The solenoid is usually held onto the machine with 2 bolts. Get the new solenoid first, then replace the connections like for like - but disconnect the battery first.

John, April 2008