7-40 SERVICING INFORMATION
ELECTRICAL
Unit: mm
ITEM SPECIFICATION NOTE
Ignition timing 10° B.T.D.C. at 1 200 r/min.
Firing order 1•2•4•3
Spark plug
Type
NGK: CR8EK
DENSO: U24ETR
Gap 0.6 – 0.7
Spark performance Over 8 at 1 atm.
Pickup coil resistance
Approx. 135 – 200 Ω
Tester range:
(× 100 Ω)
Signal generator peak voltage 1.0 V and more
Ignition coil resistance
Primary
+ tap –
- tap
Approx. 2 – 4 Ω
Tester range:
(× 1 Ω)
Secondary
Spark plug cap – Spark plug cap
Approx. 30 – 40 kΩ
Tester range:
(× 1 kΩ)
Ignition coil primary peak voltage 140 V and more
Generator Slip ring O.D. Limit: 14.0
DENSO
Brush length Limit: 4.5
Generator maximum output More than 500 W at 5 000 r/min.
Regulated voltage 13.6 – 14.4 V at 5 000 r/min.
Starter relay resistance 3 – 6 Ω
Battery Type
designation
YTX9-BS
Capacity 12V 28.8 kC (8 Ah)/10 HR
Standard elec-
trolyte S.G.
1.320 at 20 °C
Fuse size
Headlight
HI 10 A
LO 10 A
Turn signal 15 A
Ignition 15 A
Meter 10 A
Main 30 A
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