Yamaha YZF-R125 Service Manual: Checking the starter motor operation

Yamaha YZF-R125 Service Manual / Electrical system / Electrical components / Checking the starter motor operation

1. Check:

Starter motor operation Does not operate → Perform the electric starting system troubleshooting, starting with step 4.

Refer to "TROUBLESHOOTING" on page 8-9.

a. Connect the positive battery terminal "1" and starter motor lead "2" with a jumper lead "3".

WARNING

A wire that is used as a jumper lead must have at least the same capacity of the battery lead, otherwise the jumper lead may burn.
This check is likely to produce sparks, therefore, make sure no flammable gas or fluid is in the vicinity.

Checking the starter motor operation

b. Check the starter motor operation.

Checking the lean angle sensor

1. Remove: Lean angle sensor 2. Check: Lean angle sensor output voltage Out of specification Replace. a. Connect the lean angle sensor to the wire harness. b. Connect the pocket tester ...

Checking the stator coil

1. Disconnect: Stator coil coupler (from the wire harness) 2. Check: Stator coil resistance Out of specification → Replace the crankshaft position sensor/stator assembly. a. Conne ...

Other materials:

Checking the ignition coil
1. Check: Primary coil resistance Out of specification Replace. a. Disconnect the ignition coil connectors from the ignition coil terminals. b. Connect the pocket tester ( × 1) to the ignition coil as shown. Positive tester probe red/white "1" Negative tester probe orange ...

Adjusting the brake pedal free play
Adjusting the brake pedal free play Brake pedal free play The brake pedal free play should measure 3.5-4.5 mm (0.14-0.18 in) as shown. Periodically check the brake pedal free play and, if necessary, have a Yamaha dealer adjust it. WARNING An incorrect brake pedal free play in ...

Owner's tool kit
Owner's tool kit Owner's tool kit Engine oil drain attachment The owner's tool kit is located under the rider seat. The service information included in this manual and the tools provided in the owner's tool kit are intended to assist you in the performance of preventive maint ...