Mazda 6 Service Manual: No.5 engine stalls-after start/at idle

No.4 hard to start/long crank/erratic start/erratic crank

No.6 cranks normally but will not start

Other materials:

Mazda 6 Service Manual: Clutch cover inspection
1. Measure the wear of the diaphragm spring fingers. If not as specified, replace the clutch cover. Depth 0.6 mm {0.024 in} max. 2. Measure the flatness of the pressure plate with a straight edge and a feeler gauge. If not as specified, replace the clutch cover. Maximum ...

Mazda 6 Service Manual: Selector lever disassembly/assembly
1. Disassemble in the order shown in the figure. 2. Assemble in the reverse order of disassembly. Connector Disassembly Note 1. Insert a thin piece of metal from the terminal side of the connector, and press down the terminal locking tab. 2. Pull the terminal out of the connector. ...