20 Most Recent 2005 Yamaha XT 125 R Questions & Answers

try a new spark plug or check the Electricals on the bike from the battery to the engine i dont know how to but i would check them

check the kill switch on the handle bars If you need further help, I’m available over the phone at https://www.6ya.com/expert/michael_00678fd4800d19c5

Check the output voltage of your alternator, it seems to be high resulting in your problem. It should not exceed about 14.5 volts max for a 12 volt system. Have it checked and set by an auto electrician.

back swing arm has a two size holes where it connects to back suspension spring you can adjusts to higher hole raising the bike

the speedo is only set in mph but yamaha use the same speedo on the xtx and the speedo is run off the brake discs they are differant sizes so you must be set to the xtx.
what you need to do disconect the battery (under the seat)leave for a bit and you should have ENDURO and NTARD flashing on the speedo (ENDURO IS FOR THE XTR AND THE NTARD IS FOR THE XTX) JUST TURN THE KEY WHEN IT SAYS ENDURO IT SHOULD RESET.

Fuel and ignition systems are separate.
Examine the electrical system for your problem (wiring, switches, spark plug).

hello, check and see if plug is firing a blue color, if not you may need a stator-pickup coil, i have a 2000 warrior, it is firing, orange and white color, stator neede to be replaced, pickup coil was going out, also check ign coil, these have a problem with getting weak after a while. most likely it is your stator pickup coil, no blue fire from plug, no running the motor. my stator pickup coil was going out. no blue fire from plug, i was told by a yamaha mechanic, no blue fire from plug it will not run, has to be blue, not orange or white looking fire.make sure carb is clean and all jets inside are clean, and air passage ways

Hi and welcome to FixYa,

Initially, a couple of checks:

• is there sufficient compression - compression test;
• is there suction - cover the carb in port with the palm of your hand, when starting, it should be wet with fuel;
• determine if fuel is reaching the sparkplug / combustion chamber;
• condition of the intake reeds;
• excess 2T oil in the crankcase - clean, air dry.
  

Good luck and thank you for asking FixYa.

Yes, the float or the float needle is sticking in an open position. The only other possibility is a float that has a pinhole in it and has filled with petrol and will no longer float as it should.

Just an idea....It sounds like an issue at the carb. Your float could be stuck or sometimes dirt and "****" settles into the bottom of the bowl and gets carried away when you drain the bowl. If the bike has been 'tipped' over hard a couple of times this 'dirt' will become dislodged and end up...anywhere.
So first just clean the carb and make sure you set the float bowl. Let us know if this helps.

JP

there nornally nis a bit of rattle,can you hear it with out the screwdriver, if not i wouldnt worry to much, i would if i was you drop the oil and put fresh oil in that will make some differrnce cos if the oil has lost its density it becomes thin am=nd wont protect the engine properly

dont use starter fluid it will ruin yur engine try squirting petrol on the inlet and see if it fires for a second get back to me then

the standard plug is the ngk CR7HSA