Do you have a question about the WR125R 2009 and is the answer not in the manual?
Questions and answers
Karen
March 1, 2025
Hi fuel and air filter clean but bike will not start spark plug good
2 comments:
Karen
March 1, 2025
Hi fuel and air filter clean spark plug good still won’t start
Mr. Anderson
March 1, 2025
Possible causes for a Yamaha WR125R 2009 not starting despite a clean fuel and air filter and a good spark plug include:
- Faulty battery: A weak or dead battery may not provide enough power to start the engine. - Blown, damaged, or incorrect fuse: A faulty fuse can prevent electrical components from functioning properly. - Faulty main switch: If the main switch is defective, the ignition system may not receive power. - Faulty starter relay or motor: If either component is not working, the engine may not crank. - Faulty crankshaft position sensor: This sensor is necessary for ignition timing and fuel injection. - Damaged or faulty wire harness: A break or short in the wiring can disrupt the ignition or fuel system. - Improperly grounded circuit: A poor ground connection can prevent proper electrical function. - Starting circuit cut-off relay issue: If this relay fails, it may prevent the engine from starting.
Checking these components systematically can help identify the issue.
Need help?
Do you have a question about the WR125R 2009 and is the answer not in the manual?
Questions and answers
Hi fuel and air filter clean but bike will not start spark plug good
Hi fuel and air filter clean spark plug good still won’t start
Possible causes for a Yamaha WR125R 2009 not starting despite a clean fuel and air filter and a good spark plug include:
- Faulty battery: A weak or dead battery may not provide enough power to start the engine.
- Blown, damaged, or incorrect fuse: A faulty fuse can prevent electrical components from functioning properly.
- Faulty main switch: If the main switch is defective, the ignition system may not receive power.
- Faulty starter relay or motor: If either component is not working, the engine may not crank.
- Faulty crankshaft position sensor: This sensor is necessary for ignition timing and fuel injection.
- Damaged or faulty wire harness: A break or short in the wiring can disrupt the ignition or fuel system.
- Improperly grounded circuit: A poor ground connection can prevent proper electrical function.
- Starting circuit cut-off relay issue: If this relay fails, it may prevent the engine from starting.
Checking these components systematically can help identify the issue.
This answer is automatically generated