Ski-Doo FORMULA III, Shop Manual

Page: 230 / 356

Section 06 ELECTRICAL
Sub-Section 03 (SPARK PLUGS)
03-03-2
DESIGN SYMBOLS USED IN NGK SPARK PLUGS
A00E4NS
B R 9 E S
15
Thread
diameter
Heat rating
numbers
Reach
Firing end
construction
Construction
PREFIX SUFFIX
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")
19 mm
(3/4")
Taper
Seat
12.7 mm
(1/2")
11.2 mm
(7/16")
21 mm
(53/54")
E :
F :
H :
L :
Z :
2
Hot
4
5
6
7
8
9
10
Cold
18 mm
14 mm
10 mm
12 mm
8 mm
12 mm x 19 mm
Reach
A :
B :
C :
D :
E :
J :
Special Design
Single Ground
Special Alloy
Dual Ground
Special Alloy
Racing Type
Racing Version
of V-Type
Half Heat Range
Standard Center
Electrode
Fine Wire Center
Electrode
Booster Gap
V-Grooved Center
Electrode
A :
GV :
B :
C :
G :
L :
S :
V :
X :
Y :
Blank
18 mm ø 12 mm
(31/64")
14 mm ø 9.5 mm
(3/8")
Compact Type
Projected
Insulator Type
Resistor Type
Surface Discharge
Inductive
Suppressor Type
M :
P :
R :
U :
Z :
A01E1PS
Standard
Type
CROSSCUTS AND GAP STYLES OF SPARK PLUGS
Surface
Discharge Type
Projected
Insulator Type
Taper
Seat Type
V-Type