20 Most Recent 2010 Yamaha WR250R Questions & Answers

Hi, Sergey it should be noted that the reasons your check engine light or CEL stays on constantly or flashes and your bike will or will not start and may turnover or not, these conditions will vary from bike to bike depending on 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 done to the bike or an abnormal event occurrence such as adding accessories, electrical curiosity or adventures, laying the bike down or crashes, stolen and cut ignition wires, rainstorms or bike washings just before CEL light issues started can be significant hints or aids into tracking down the gremlin, also keep in mind that your CEL comes to life if anything, and I do mean anything isn't 100% with the ECM such as parameter spikes. This means that you could be staring at a major repair, or something very minor, like your speedometer sensor, is contaminated and needs to be cleaned.
And the usual suspects are:
1. Severely discharged or a damaged battery check the 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, you should have 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 batteries fail in this scenario more so than lead-acid batteries.
2. Faulty charging system.
3. Faulty system sensor some models have up to 40 sensors
4. Faulty safety switches: run/off, ignition, clutch lever, neutral, side stand, tip over, fuel, and or their connections.
5. The engine got wet in places where it doesn't like to get wet.
6. Faulty ignition circuit spark plugs, coils, cables etc.
7. 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. Run speedometer diagnostics and check for generated fault codes.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
check engine light issues
Yamaha Fault Codes
Yamaha WR250R Service Manual
Yamaha WR250R Owner Manual

2010 Yamaha... | Answered on Oct 16, 2018

Hi, Davymo2005 for more information about your question and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
bought WR250X big mistake
AIS Removal for Yamaha WR250
Yamaha WR250R Service Manual
OEM parts for Yamaha
Yamaha WR250R Owner Manual

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

2010 Yamaha... | Answered on Jun 07, 2017

sounds like it siezed

Yamaha FourTrax... | Answered on Aug 06, 2017

This might be help full.



Yamaha FourTrax... | Answered on Sep 15, 2012

Needs a voltage regalater or statter MOPAR KENNY

Yamaha FourTrax... | Answered on May 22, 2011

great sled for keepin your feet warm. check the driveshaft bearings. they are notorious for wearing out. also check the rear springs arent broken.

Yamaha... | Answered on Dec 06, 2018


Go to the website above and you willl find a list of yamaha r6 fault codes. The fault code 20 according to the above website forum means : "20 - When the main switch is turned to "ON", the atmospheric pressure sensor voltage and intake air pressure sensor voltage differ greatly.
I hope this is helpful.

Yamaha... | Answered on Dec 05, 2018

same as whats on there now. take it off and measure it

Yamaha... | Answered on Dec 02, 2018

Everywhere that could pinch a wire and short the system to ground. A short indicator tool would help.

Yamaha... | Answered on Nov 29, 2018

I would check and confirm the battery is fully charged. If its more than 2 years old, the battery is probably dead. It may appear to hold a charge but does not give any power. With the headlights on, try to start the bike, if the lights go out or very dim, I would say your battery is shot. Its possible the starter has failed but try the easiest first. If you have a volt meter, you can test the battery. It should be 12 volts DC

Yamaha... | Answered on Nov 28, 2018

Not finding what you are looking for?
2010 Yamaha WR250R Logo

Popular Tags

2 questions posted

Ask a Question

Usually answered in minutes!

Popular Products

Top Yamaha Experts


Level 3 Expert

1216 Answers

Steve Sweetleaf
Steve Sweetleaf

Level 3 Expert

1165 Answers

D. E. Hev

Level 3 Expert

1187 Answers

Are you a Yamaha Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

View Most Popular

FourTrax Rancher Yamaha

  • FourTrax Rancher Yamaha

Most Popular Question

yamaha wr250r errors 24 31 32 when

  • Motorcycles