Starting and warming up a cold engine

This motorcycle is equipped with an ignition circuit cut-off system. The engine can be started only under the following conditions:

a. The transmission is in neutral.

b. The sidestand is up, the transmission is in gear and the clutch is disengaged.

The motorcycle must not be ridden when the sidestand is down.


Before going through the following steps, check the function of the sidestand switch and clutch switch. (Refer to page 3-13.)

1. Turn the fuel cock to "ON".

2. Turn the main switch to "ON" and the engine stop switch to" O

3. Shift transmission into neutrai.

When the transmission is in neutrai, the neutral indicator light should be on. If the light does not come on, ask a Yamaha dealer to inspect it.

4. Turn on the starter (choke) and completely close the throttle grip.

5. Start the engine by pushing the start switch.

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

6. After starting the engine, turn off the starter (choke). The starter operation periods differ with the ambient temperature, so refer to the following notes.

m The engine is warm when it responds normally to the throttle with the starter turned off. To avoid the possibility of excessive exhaust emissions, never leave the starter circuit on longer than necessary. The length of time the starter is needed depends upon the ambient temperature. Warm ambient temperatures (above 10°C/50°F) require about 7 seconds of starter use. Cold ambient temperatures (below 10°C/50°F) require about 35 seconds with the starter turned on, then about 2.5 minutes with the starter in the halfway position.

® For maximum engine life, always warm up the engine before starting off. Never accelerate hard with a cold engine.

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