Yamaha MT-01 Service Manual page 845

Manuals by Motomatrix / www.motomatrix.co.uk
Continuity
Positive tester probe → sky blue
"1"
Negative tester probe →
black/yellow "2"
No continuity
Positive tester probe →
black/yellow "2"
Negative tester probe → sky
blue "1"
Continuity
Positive tester probe → sky blue
"1"
Negative tester probe →
blue/yellow "3"
No continuity
Positive tester probe →
blue/yellow "3"
Negative tester probe → sky
blue "1"
Continuity
Positive tester probe → sky blue
"1"
Negative tester probe → sky
blue/white "4"
No continuity
Positive tester probe → sky
blue/white "4"
Negative tester probe → sky
blue "1"
Continuity
Positive tester probe →
blue/green "5"
Negative tester probe →
blue/yellow "3"
No continuity
Positive tester probe →
blue/yellow "3"
Negative tester probe →
blue/green "5"
3
5
4
Sb/W B/R L
L/G L/Y Sb B/Y
M MMM M MMM M M MMM M M MMM
a. Disconnect the relay unit coupler from the
wire harness.
Email: info@motomatrix.co.uk
1
2
R/L L/R
L/W R
M M MMM M M MMM M MMM
ELECTRICAL COMPONENTS
b. Connect the pocket tester (Ω × 1) to the relay
unit terminal as shown.
c. Check the relay unit (diode) for continuity.
d. Check the relay unit (diode) for no continuity.
L LLL L LLL L L LLL L
EAS28070
CHECKING THE SPARK PLUG CAPS
The following procedure applies to all of the
spark plug caps.
1. Check:
• Spark plug cap resistance
Out of specification → Replace.
Resistance
10.0 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.
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
c. Measure the spark plug cap resistance.
L LLL L LLL L L LLL L
EAS28100
CHECKING THE IGNITION COILS
The following procedure applies to all of the igni-
tion coils.
1. Check:
• Primary coil resistance
Out of specification → Replace.
Primary coil resistance
2.16–2.64 Ω
M MMM M MMM M M MMM M
a. Disconnect the ignition coil connectors from
the ignition coil terminals.
7-99
L LLL L L LLL L L LLL L
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
LLL
MMM
LLL
MMM