BOMBARDIER SEA-DOO SPX 5838 1998 Shop Manual page 228

Section 08 ELECTRICAL SYSTEM
Subsection 02 (IGNITION SYSTEM)
NGK Spark Plug Symbol Explanation
PREFIX
B R 8 E S
Thread
diameter
A:
18 mm
B:
14 mm
C:
10 mm
D:
12 mm
E:
8 mm
12 mm x 19 mm
J:
Reach
Construction
M:
Compact Type
Projected
P:
Insulator Type
R:
Resistor Type
U:
Surface Discharge
Inductive
Z:
Suppressor Type
F02H0MS
CROSSCUTS AND GAP STYLES OF SPARK PLUGS
Standard
Type
A01E1PS
08-02-18
SUFFIX
Heat rating
numbers
Hot
2
4
5
6
7
8
9
Cold
10
Projected
Insulator Type
15
Reach
19 mm
E:
(3/4")
Taper
F:
Seat
12.7 mm
H:
(1/2")
L:
11.2 mm
(7/16")
Z:
21 mm
(53/54")
Blank
18 mm ø 12 mm
(31/64")
14 mm ø 9.5 mm
(3/8")
Taper V-Type
Seat Type
WIDE GAP
10: 1.0 mm (.040")
11: 1.1 mm (.044")
13: 1.3 mm (.050")
14: 1.4 mm (.055")
15: 1.5 mm (.060")
20: 2.0 mm (.080")
Firing end
construction
A:
Special Design
B:
Single Ground
Special Alloy
C:
Dual Ground
Special Alloy
G:
Racing Type
Racing Version
GV:
of V-Type
L:
Half Heat Range
S:
Standard Center
Electrode
V:
Fine Wire Center
Electrode
X:
Booster Gap
Y:
V-Grooved Center
Electrode
Surface
Discharge Type