Mazda 6 Service Manual: No.7 slow return to idle

No.6 cranks normally but will not start

No.8 engine runs rough/rolling idle

Other materials:

Mazda 6 Service Manual: Reassembly
Standard values, such as torques and certain adjustments, must be strictly observed in the reassembly of all parts. If removed, these parts should be replaced with new ones: - Oil seals - Gaskets - O-rings - Lockwashers - Cotter pins - Nylon nuts Depen ...

Mazda 6 Service Manual: Replacing a Wheel
WARNING Always use wheels of the correct size on your vehicle: Using a wrong-sized wheel is dangerous. Braking and handling could be affected, leading to loss of control and an accident. CAUTION A wrong-sized wheel may adversely affect: Tire fit Wheel and bearing life Ground clearance ...