- Battery is discharged.
- Battery terminal(s) is not tightened correctly.
- Fuse is blown.
- Cord connection(s) is loose.
- Spark plug cap(s) is removed.
- Spark plug(s) is not securely tightened.
- Spark plug(s) is burnt, dirty, damaged or bridged.
- Poor compression of cylinder.
- Overheat sensor is operated.(*)
- Engine oil is emptied.(*)
Note: Asterisked item(*) can be checked by the OK monitor.