1. Remove the flywheel..
2. Perform the following procedures to inspect the flywheel.
If there is any malfunction or it exceeds the maximum specification, replace the flywheel..
a. Inspect the surface that contacts the clutch disc for scratches, nicks, and discoloration.

Correct slight scratches and discoloration using sandpaper.
b. Inspect the ring gear teeth for damage and wear.
c. Inspect the runout of the surface that contacts the clutch disc.

i. Install the flywheel..
ii. Measure the runout of the surface that contacts the clutch disc using a dial gauge.
0.1 mm {0.004 in}
Clutch Unit Removal/Installation [C66 M R]
Pilot Bearing Inspection [C66 M R]Oil Control Valve (OCV) Inspection [Mzr 2.0, Mzr 2.5]
Coil Resistance Inspection
1. Remove the battery cover..
2. Disconnect the negative battery cable..
3. Remove the plug hole plate..
4. Disconnect the OCV connector.
5. Measure the resistance between terminals A and B using an ohmmeter.
OCV coil resistance
6.9—7.9 ohms [20°C ...
On/Off Solenoid Removal/Installation [Fw6 A EL]
WARNING:
A hot transaxle and ATF can cause severe burns. Turn off the engine and wait
until they are cool.
Always wear protective eye wear when using the air compressor. If the air
compressor is used, any particles of dirt or soiling could spatter and get into
the eyes.
...
Specifications
Engine
Electrical System
*1 Q-85 is designed for i-ELOOP system. Only Q-85 should be used to ensure
correct operation of i-ELOOP
system. Consult an Authorized Mazda Dealer for details.
*2 Not for i-ELOOP system.
*3 This spark plug provides the SKYACTIV-G engine with optimum perfor ...