High-Tension Lead Removal; Spark Test; Spark Plugs Inspection; Plug Gap - Mazda B-Series 1997 Workshop Manual

ELECTRONIC IGNITION SYSTEM
SQUEEZE
LOCKING TABS
TO REMOVE
Note
Factory installed spark plugs are painted for left
and right bank. These plugsare not interchangeabl
.
Spark plugs for Left bank: White marked
Spark plugs for Right bank: Dark Green marked
Service part can install at any place.
5BUOGX-026
Removal Note
High-tension lead
When removing leads from the coil packs, squeeze the
locking tabs of the coil wire retainer and remove using a
twisting and pulling motion. Do not pull on the lead.
MG1038-A 5BUOGX-024
Spark test
1.
Remove the spark plug.
2. Connect the spark plug to a high-tension lead.
3. Hold the high-tension lead and spark plug with insulated
pliers 5-10mm (0.20-4.39 in) from a ground.
4. Crank the engine and verify that there is a strong blue
spark.
5. If there is no spark, refer to page G-30.
I
WEAR AND CARBON
I
DAMAGE AND
DETERlORATlON
Inspection
Spark plugs
Check the following points. If a problem is found, replace
the spark plug.
Damaged insulation
Worn electrodes
Carbon deposits
If cleaning is necessary, use a plug cleaner or a wire
brush. Clean the upper insulator, also.
Damaged gasket
Burnt
Plug gap
Refer to the Vehicle Emission Control Information
(VECI) decal, located in the engine compartment for
spark plug gap.
4BUOGX-050