Question about 2010 Yamaha Cygnus X

1 Answer

Engine management light on Yamaha Cygnus x 125. speedometer does not work or mileage clock. had mot'd two days ago.what is wrong with it ?

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  • Yamaha Master
  • 55,670 Answers

Hi, Luke it should be noted that the reasons your check engine light constant or flashing, will or will not start, turns over or not conditions varies from the year, make, and model and you should always refer to your owners/service manual for proper diagnostic procedures. It should also be noted that any type of prior work or event IE: adding accessories, electrical curiosity/adventures, laying bike down/crashes, rainstorms/bike washings just before EFI light issues started can be significant hints/aids into tracking down the gremlin, also carry the appropriate jumper wire to access fault codes to reduce the risk of being stranded or towed, that being said the usual suspects are:
1. Faulty Fuel Pump, fuse or system relay switch.
2. Battery starting to fail due to old age/damage, perform a load test.
3. Discharged battery, check 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 if necessary.
4. Faulty switches/sensors: run/off, ignition, clutch lever, neutral, side stand, tip over, fuel, and or their connections.
5. Broken wire or worn insulation exposing wire to a ground situation especially inside wire harness at tight bends around fairing brackets, under dash panels, under fuel tanks over cylinder heads etc. Many harnesses are open on the ends that will allow water to enter and accumulate at v-bends.
6. Check for generated fault codes.
Dielectric grease and contact cleaner are your best friends for wire/cable/harness connectors, look for corroded, broken, or loose pins/sockets.
For more information about your issue please visit the websites below. Good luck and have a nice day.
https://yamahaclub.com/forums/topic/43131-engine-management-light-help
Yamaha Fault Codes motorcycle manuals
Yamaha XC125 Service Manual
OEM parts for Yamaha
YAMAHA CYGNUS XC125 Owner Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Posted on Dec 16, 2016

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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  • 518 Answers

SOURCE: I am not geting a spark on my yamaha cygnus, there

check to see if the magnito has come loose, although you would hear it if it was, maybe the points need replacing

Posted on Jan 02, 2010

  • 1 Answer

SOURCE: location of and how to get to battery on a yamaha cygnus x 125

Hi there,

The battery is not under the seat - its sits behind the square plastic panel under the handle bars. (If sitting on the bike the battery cover is beneath the ignition switch. Held on with on screw and pops off to reveal the batt box. The batt should have a retaining strap which would need to be removed before batt will come out.

Hope this helps
Rob

Posted on Jul 26, 2009

  • 11 Answers

SOURCE: yamaha tw 125

The noise you hear is valve clatter. You should not adjust your timing chain. Instead get a manual and find the vlave clearances for that bike. (Ex. The exaughst valve may be .006" and the intake valve may be .004") Then you'll need a feeler gauge, and to do this you'll remove the valve covers and get the engine to TDC (Top Dead Center) This is where the piston is at the very top of it's stroke and both valves are shut. (compression stroke) You must then loosen the rocker arm nut to the point that you can insert the feeler gauge between the rocker arm and the top of the valve run the nut down tight to the feeler gauge and then pull gauge out and repeat on the other valve.

Posted on Aug 24, 2009

  • 3567 Answers

SOURCE: how do i decode yamaha yz 125 engin id number

You don't decode it. It is only a production run series number. Mororcycles are like cars in that respect. It is the frame number, AKA the "VIN number", is what carries all the information. Call a dealer with the frame number and he can tell you year, paint color, specific model and more. They may have a problem if the bike is too old. Yamaha changed to a newer code system a few years back.
Can I get a “very helpful” rating on this answer?

Posted on Aug 28, 2009

  • 124 Answers

SOURCE: How often do you service a Yamaha Cygnus 125 cc

As a rule of thumb it depends on how the vehicle is used. If it is used in the dirt where there is a dusty condition, 2000 miles or 100 hours would be best. If it is used exclusively around town on the highways and not a lot of city driving 3000 miles or 150 hours would be sufficient.

Posted on Nov 05, 2009

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1 Answer

Engine management light on Yamaha Cygnus x 125.


Hi, Anonymous it should be noted that the reasons EFI lights constant or flashing, will or will not start, turns over or not conditions varies from the year, make, and model and you should always refer to your owners/service manual for proper diagnostic procedures. It should also be noted that any type of prior work or event IE: adding accessories, electrical curiosity/adventures, laying bike down/crashes, rainstorms/bike washings just before EFI light issues started can be significant hints/aids into tracking down the gremlin, also carry the appropriate jumper wire to access fault codes to reduce the risk of being stranded or towed, that being said the usual suspects are:
1. Faulty Fuel Pump, fuse or system relay switch.
2. Battery starting to fail due to old age/damage, perform a load test.
3. Discharged battery, check 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 if necessary.
4. Faulty switches/sensors: run/off, ignition, clutch lever, neutral, side stand, tip over, fuel, and or their connections.
5. Broken wire or worn insulation exposing wire to a ground situation especially inside wire harness at tight bends around fairing brackets, under dash panels, under fuel tanks over cylinder heads etc. Many harnesses are open on the ends that will allow water to enter and accumulate at v-bends.
Dielectric grease and contact cleaner are your best friends for wire/cable/harness connectors, look for corroded, broken, or loose pins/sockets. For more information about your issue please visit the websites below. Good luck and have a nice day.
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Yamaha Cygnus XC125 Owner Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

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Hi, Anonymous for more information about your question and valuable "FREE" downloads that you will need please visit the websites below. Good luck and have a nice day.
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Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


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Hi, Anonymous sorry you can't find the first and best tool you ever bought for your Yamaha despair, not for a mere $10 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please visit the websites below. Good luck and have a nice day.
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YAMAHA CYGNUS NXC125 Owner Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


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Hi, Anonymous for this scenario you will need your service/owners/ manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere zero $ you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
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Hi, Anonymous for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a wonderful day.
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Hi, Anonymous for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one. 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.
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Hi, Anonymous for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one. 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.
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Hi, Anonymous for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere $10 you can download another one. 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.
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Hi, Iankpstewart for this scenario you will need your service/owners manual if you can't find the best tool you ever bought for your Yamaha, despair not, for a mere $10 you can download another one. 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.
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