Yamaha YZF-R125 Owners Manual: Starting the engine

In order for the ignition circuit cut-off system to enable starting, one of the following conditions must be met:

  • The transmission is in the neutral position.
  • The transmission is in gear with the clutch lever pulled and the sidestand up.

1. Turn the key to "ON" and make sure that the engine stop switch is set to"".


The following warning lights and indicator light should come on for a few seconds, then go off.

  • Neutral indicator light
  • Turn signal indicator light
  • High beam indicator light
  • Coolant temperature warning light
  • Engine trouble warning light

NOTICE
If a warning or indicator light does not go off, see page 3-2 for the corresponding warning and indicator light circuit check.

  1. Shift the transmission into the neutral position. (See page 5-2.) The neutral indicator light should come on. If not, ask a Yamaha dealer to check the electrical circuit.
  2. Start the engine by pushing the start switch. NOTICE: For maximum engine life, never accelerate hard when the engine is cold!

    If the engine fails to start, release the start switch, wait a few seconds, and then try again. Each starting attempt should be as short as possible to preserve the battery. Do not crank the engine more than 10 seconds on any one attempt.

    Operation and important riding points
    Read the Owner's Manual carefully to become familiar with all controls. If there is a control or function you do not understand, ask your Yamaha dealer. WARNING Failure to familiarize yoursel ...

    Shifting
    Shifting Shift pedal Neutral position Shifting gears lets you control the amount of engine power available for starting off, accelerating, climbing hills, etc. The gear positions a ...

    Other materials:

    Installing the shift forks and shift drum assembly
    1. Install: Shift fork-L "1" Shift fork-C "2" Shift fork-R "3" Shift drum assembly "4" Springs Shift fork guide bar "5" NOTE: The embossed marks on the shift forks should face towards the right side of the engine and be in the following sequence: "R", "C", "L". 2. Check: Tr ...

    Checking and replacing the rear wheel sprocket
    1. Check: Rear wheel sprocket More than 1/4 tooth "a" wear Replace the rear wheel sprocket. Bent teeth Replace the rear wheel sprocket. b. Correct 1. Drive chain roller 2. Rear wheel sprocket 2. Replace: Rear wheel sprocket a. Remove the self-locking nuts and the ...

    Troubleshooting
    Any of the following fail to light: headlight, high beam indicator light, taillight, license plate light, auxiliary light or meter light. NOTE: Before troubleshooting, remove the following part(s): 1. Seats 2. Fuel tank ...

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