20 Most Recent 2001 Yamaha DT 125 R Questions & Answers

You can look at the interface of the plug will know where it has, in addition you if there is a need to change, also can try to refer to this website.Good luck and have a nice day. http://www.motorpartstore.com/

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most likely you just answered your own question

Hello,

If you have not done so, please check the fuel filter for good fuel flow. Also, pull the output hose off the fuel pump to see if it has good fuel flow. One more thing... pull the fuel line from the carburetor to make sure that there is a steady flow of fuel.

If all the above components are working correctly, then you might try this; fill the tank with premium fuel (NO Ethanol additives) and add 1/4 to 1/2 ounce of carburetor cleaner (B-12) and add Sta-bil (the recommended amount) to the fuel tank. The B-12 will clean the fuel path and the Sta-bil will stabilize the fuel. Start the bike as you normally would. It will take a bit to get the bike running so be patient. Once you have it running correctly, buy a can of Sea Foam (only if your fuel contains Ethanol additives) and add the recommended amount every other tank for about 4 tanks.

If you are still having issues after doing all the above, please reply with more information so that I may help you further.

Hope this helps. If you find this information useful, please vote on this post. Thank you.

Regards,

Oz

i had the same issue. it's gonna be a blockage in one of the vent tubes to the carb. check the line to the left of the carb that runs next to the gas tank. if thats fine then check the gas cap line. then if thats all good then check the line that runs below the carb. these are all vent tubes and allow the carb. to refill with fuel

check for blockages in your exhaust.

In the center of the under side of the motor/oil pan, you will see a diamond shaped plate held on by two screws/bolts and having a single wire coming out of it.

Whenever the oil change to black color.

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