Yamaha MBK MW125 2014 Service Manual

ELECTRICAL COMPONENTS8-65b. Measure the crankshaft position sensor re-sistance.▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲▲▲EAS30561CHECKING THE LEAN ANGLE SENSOR1. Remove:• Lean angle sensor(from the rear fender)2. Check:• Lean angle sensor output voltageOut of specification → Replace.▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼▼▼a. Connect the test harness-lean angle sensor1PA (3P) “1” to the lean angle sensor andwire harness as shown.b. Connect the pocket tester (DC 20 V) to thetest harness-lean angle sensor 1PA (3P).c. Turn the main switch to “ON”.d. Turn the lean angle sensor to 50°.e. Measure the lean angle sensor output volt-age.▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲▲▲EAS30562CHECKING THE STARTER MOTOROPERATION1. Check:• Starter motor operationDoes not operate → Perform the electricstarting system troubleshooting, starting withstep 4.Refer to “TROUBLESHOOTING” on page8-8.▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼ ▼▼▼▼ ▼▼▼a. Connect the positive battery terminal “1” andstarter motor lead “2” with a jumper lead “3”.WARNINGEWA13810• A wire that is used as a jumper lead musthave at least the same capacity of the bat-tery lead, otherwise the jumper lead mayburn.• This check is likely to produce sparks,therefore, make sure no flammable gas orfluid is in the vicinity.b. Check the starter motor operation.▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲ ▲▲▲▲ ▲▲▲Pocket tester90890-03112Analog pocket testerYU-03112-C• Positive tester probe →white/red “1”• Negative tester probe →white/blue “2”Lean angle sensor output voltageLess than 50°: 0.4–1.4 VMore than 50°: 3.7–4.4 VTest harness– lean angle sensor1PA (3P)90890-03237Test harness– lean angle sensor1PA (3P)YU-03237• Positive tester probe →yellow/green (wire harness color)• Negative tester probe →black/blue (wire harness color)W/LW/R12150˚ 50˚