Checking The Ignition Coil; Checking The Ignition Spark Gap - Beta RR 125 LC Manual

Resistance
5.0 kΩ
M MMM M MMM M M MMM M
a. Remove the spark plug cap from the spark
plug lead.
b. Connect the pocket tester (Ω × 1k) to the
spark plug cap as shown.
c. Measure the spark plug cap resistance.
L LLL L LLL L L LLL L
EAS28090

CHECKING THE IGNITION COIL

1. Check:
• Primary coil resistance
Out of specification → Replace.
Primary coil resistance
2.16–2.64 Ω at 20 °C (68 °F)
M MMM M MMM M M MMM M
a. Disconnect the ignition coil connectors from
the ignition coil terminals.
b. Connect the pocket tester (Ω × 1) to the igni-
tion coil as shown.
• Positive tester probe →
red/white "1"
• Negative tester probe →
orange "2"
M MMM M M MMM M M MMM M
L LLL L L LLL L L LLL L
M MMM M M MMM M M MMM M
ELECTRICAL COMPONENTS
MMM
c. Measure the primary coil resistance.
L LLL L LLL L
2. Check:
• Secondary coil resistance
Out of specification → Replace.
M MMM M MMM M
a. Disconnect the spark plug cap from the igni-
LLL
tion coil.
b. Connect the pocket tester (Ω × 1k) to the ig-
nition coil as shown.
• Positive tester probe →
orange "1"
• Negative tester probe →
spark plug lead "2"
MMM
c. Measure the secondary coil resistance.
L LLL L LLL L
EAS28930

CHECKING THE IGNITION SPARK GAP

1. Check:
• Ignition spark gap
Out of specification → Perform the ignition
system troubleshooting, starting with step 5.
L LLL L L LLL L L LLL L
Secondary coil resistance
8.64–12.96 kΩ at 20 °C (68 °F)
M MMM M M MMM M M MMM M
L LLL L L LLL L L LLL L
L LLL L LLL
M MMM M MMM
L LLL L LLL