Question about Yamaha Motorcycles

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I have a Yamaha riva 125, it was runing fine til the battery went dead(maybe because the alternator maybe about to die) so i would just jump it off to crank it and keep driving. but now it wont start at all.

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  • Yamaha Master
  • 40,627 Answers

Hi, Tmrr_deb before testing any electrical component in the Starting System it is "IMPERATIVE" that you have a fully charged battery of 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a preliminary reading of 12.5 volts or more but little or zero amperage, the battery is faulty and must be replaced. AGM type batteries fall into this scenario more so than lead acid batteries.
1. Ignition Switch not in the "ON" position.
2. Engine Run Switch in the "OFF" position.
3. Check the battery terminals for damage or corrosion check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter.
4. Bank angle sensor needs a reset or is faulty.
5. FOB battery low or dead.
6. Faulty ignition switch.
7. Faulty starter button.
8. Faulty kickstand, clutch, neutral safety switch.
9. Security alarm needs a reset.
10. Starter relay, solenoid, starter have failed or circuit wiring faulty.
11. Starter armature or field coils have failed.
12. Main fuse or circuit breaker may be blown or faulty.
13. The electric starter is working but starter clutch has failed.
14. Check for engine trouble codes.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Scooter Troubleshooting Scooter won start All about Scooters
The Ultimate GY6 Starter Ignition Troubleshooting Tutorial
Yamaha XC125 Service Manual
OEM parts for Yamaha
YAMAHA CYGNUS XC125 Owner Manual

Posted on Jun 02, 2017

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 850 Answers

SOURCE: 2007 yamaha ttr 125 wont go into gear. starts

gear selector may be jammed inside the casing or broken
check that the shifter is tight on the shaft!
check clutch adjustment
try rocking bike back n forth without using clutch while you try ******* the gear lever it may come unstuck
but get it looked at if it frees up!

Posted on Jul 20, 2009

  • 188 Answers

SOURCE: 2000 yamaha YZF 600r wouldnt start

i suspect the battery is problem.Also you may have an electric fuel pump that is acting up.

Posted on Jul 28, 2009

  • 1 Answer

SOURCE: yamaha DT 125 2003 Main beam headlight keeps

i have well, had a very similar problem, my headlight kept going on my 1990 dt125r from 1990 to 2003 the engine is the same so i feel it may be the same fix, the regulator/rectifier stopped working properly and was alowying to much power to get to the headlight and blew it, i got a new regulator/rectifier for around £30 ish, you could tell when it went caus the higher you reved it the brighter the light got until it blew not like when it gets brighter from tickover, it was just proggesive and just kept getting brighter the more you revved it, hope this helps

Posted on Aug 06, 2009

ollie reece
  • 1167 Answers

SOURCE: YAMAHA 125 STARTS BUT WILL NOT IDLE HAVE TO CARGE

hi buddy on carb will be a screw turn this in 1/4 of a turn with the machine running until it idles the idle screw below 7e81671.jpg

Posted on Sep 20, 2009

odiebugs
  • 949 Answers

SOURCE: I have aN ATV Yamaha Raptor 660, the positive

Just replace it with a nut and bolt that is smaller then the hole,
this way you can put the bolt through the holder and tighten down the bolt which will hold the connector onto the post.

You can clean the terminals with baking soda and water, then cover
with petroleum jelly to keep them corrosion free.

There is actually a compound for this but the jelly is almost as good.

Posted on Feb 10, 2010

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1 Answer

Yamaha Riva 125 wont start


Hi, Cb350four before testing any electrical component in the Starting System it is "IMPERATIVE" that you have a fully charged battery of 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a preliminary reading of 12.5 volts or more but little or zero amperage, the battery is faulty and must be replaced. AGM type batteries fall into this scenario more so than lead acid batteries.
1. Ignition Switch not in the "ON" position.
2. Engine Run Switch in the "OFF" position.
3. Check the battery terminals for damage or corrosion check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter.
4. Bank angle sensor needs a reset or is faulty.
5. FOB battery low or dead.
6. Faulty ignition switch.
7. Faulty starter button.
8. Faulty kickstand, clutch, neutral safety switch.
9. Security alarm needs a reset.
10. Starter relay, solenoid, starter have failed or circuit wiring faulty.
11. Starter armature or field coils have failed.
12. Main fuse or circuit breaker may be blown or faulty.
13. The electric starter is working but starter clutch has failed.
14. Check for engine trouble codes.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Yamaha Riva 125 problem starting
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Yamaha XC125 Service Manual
OEM parts for Yamaha
YAMAHA CYGNUS XC125 Owner Manual

Mar 20, 2010 | 2000 Yamaha TW 125

1 Answer

All gauges went dead while driving, lights progressively dimmed and finally engine quit.


Your alternator died. You drove until your battery died also. You need a new alternator and a new battery. You might be able to get away with just charging your battery. Do Not jump start the vehicle and let the new alternator try to charge the old battery! Take the battery to a service station for testing and a charge. Install the new alternator and then install the charged battery not vice versa and you'll be fine.

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2 Answers

Gas pouring out the bottom of carb on a 2001 yamaha riva 125


replace the gasket on the bottom of carb bowl

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1 Answer

97 nissan sentra put new alternator and battery car wont start


are you sure the alternator is good? because it could be tricky ...The only other thing is the wire running back to battery pack to charge battery maybe disconnected

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1 Answer

Battery goes dead


You need to Check out the Alternator.

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