Question about Yamaha XS 650 B Motorcycles
Posted by Anonymous on
Hi, Anonymous the answer to this question is way above my pay grade and for this situation, I would call my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry.
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No spark when cranking sparks when start button released
TRX450ES sparks only when you let off starter
Yamaha XS650SE Shop Manual
OEM parts for Yamaha
Yamaha XS1 650 Owner Manual
Posted on May 04, 2017
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Posted on Jan 02, 2017
SOURCE: My gsx 500 es won't
Hi, it could be a number of things.
There's stuff to be eliminated as potential problems.
1. Kill switch
2. Clutch switch
3. Faulty starter relay
4. Start button - dirty contacts
Do you have any kind of test equipment, such as a multimeter or a test light?
Make sure the kill switch is in the Run position.
With the ignition on, clutch lever pulled in, and start button pressed you should see power (12v) on the Green/Yellow wire at the starter relay. If you have power on this wire and the relay does not close you have a faulty starter relay. If no power, check at the Green/Yellow wire at the clutch switch. There are two wires. One should have power, the other should not until you pull in the clutch (starter button pressed). If you find power all the time on one wire and never on the other then the clutch switch is bad or needs to be adjusted. If you do not get power either side, check the Green/Yellow wire at the start button. There should be power when the button is pressed. If no power, check the Orange/White wire at the start button. If there is power at the Orange/White wire and never any at the Yellow/Green, the start button is bad or has dirty contacts. If there is no power at the Orange/White wire, check the Orange wire at the kill switch. If power on Orange and never on Orange/White you have an open or faulty kill switch. If no power on Orange, you have a bad ignition (key) switch.
This runs you through the entire control circuit from ignition switch to starter relay.
On bikes this old that have seen some weather, it is not uncommon to have dirty switch contacts.
Posted on Mar 02, 2011
That is the sign of a low or bad battery. When you let off the starter button the engine is still turning over and the extra voltage that was turning over the motor is transferred to the ignition system and the bike will catch and start. Try charging the battery or take it to a store that checks the battery. In Arizona we need to change wet cell batteries about every 2-3 years because of the heat. A gel cell will last longer.
Posted on Jul 09, 2011
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