Mazda RX-8 Workshop Manual page 1142

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2011 - RX-8 - Engine
SPARK PLUG INSPECTION [13B-MSP]
Specification
Spark plug type
Leading side: N3H5 18 110A (RE7C-L)
*2
L)
Trailing side: N3H1 18 110D (RE9B-T)
*1
Standard equipment
*2
Hot type plug: Available only for customers who often drive their car at very low speed
which causes the plugs to foul easily.
Plug Gap Inspection
CAUTION:
1. To avoid possible damage to the tip, do not adjust the plug gap.
1. To prevent damaging the tip, use a wire type plug gap gauge when inspecting the plug
gap.
1. Measure the spark plug gap using a wire type plug gap gauge.
1. If it is more than the maximum specification, replace the spark plug.
Standard spark plug gap
1.15—1.25 mm {0.046—0.049 in}
Maximum spark plug gap
Leading side: 1.5 mm {0.059 in}
Trailing side: 1.4 mm {0.055 in}
*1
, N3Y8 18 110A (RE7C-L)
*1
, N3Y1 18 110A (RE9B-T)
*1
, N3Y9 18 110A (RE6C-
*1