the factory settings might not be where your bike needs to be adjusted too. From what I know your bike starts to develope it's on personality and needs adjustments. I would look into a service manual for where the adjustments should be. Are you having issues?
valve settings on a 2008 yamaha ttr 125
the Yamaha ttr125 goes about 50 to 55 mph
That is a 2000 YAMAHA TTR125.
sw 30
14.8
la
how to set ttr125 timing
either get a yz85 or a yz125 the ttr125 is to small for u i have one i am 5ft 5in and it is way to small for me
ride it until it stops running.
The Yamaha TTR125 Kawasaki KLX125 Suzuki DRZ125
16lbf-ft)
To drain the fuel tank on a Yamaha TTR125, first, ensure the bike is turned off and cool. Locate the fuel petcock (valve) on the side of the tank, turn it to the "OFF" position, and disconnect the fuel line from the carburetor using a wrench. Place a container beneath the tank to catch the fuel, then turn the petcock to the "RES" or "ON" position to allow the fuel to drain completely. Dispose of the fuel properly and ensure no spills occur.