The throw out bearing likely went bad.
That's very common. But before you condemn it, get someone to operate the pedal while you observe the clutch lever at the bell housing. If the lever fails to move or moves little, check for fluid in the master cylinder. If there is a low fluid level top it up. You may have to bleed the system. If still no movement suspect the clutch master cylinder. If fluid is dripping from the bell housing or clutch cylinder the slave cylinder needs re-sealing/replacing. For a cable clutch, check the operation of the cable adjustment ratchet pawl at the top of the pedal. If all appears normal, there is a phosphor-bronze bushing in the centre of the flywheel (the throw out bearing) which can seize onto the gearbox input shaft.
torque flight transmission
It could possibly be your clutch pedal height. I had to fix the problem in my car, had the same thing happening. Go to your local shop or look up on the interweb and find out how to adjust the clutch pedal height.
If the clutch won't engage, the clutch disc or pressure plate has probably broke apart. If the clutch won't disengage, the clutch hydraulic fluid reservoir is empty because of a leak in the system.
If the clutch on your 2003 Yamaha TT-R 225 won't disengage, it could be due to several reasons. A common issue is low or contaminated clutch fluid, which can affect hydraulic operation. Additionally, worn clutch plates or springs might prevent proper disengagement. Lastly, check for any cable adjustments or binding that could be affecting the clutch lever's movement.
Is to disengage and engage
True
To engage or disengage the engine from the transmission.
The term "pull in the clutch" means squeeze the clutch lever to the handle bar to disengage the clutch. Hope this helps.
The clutch will not engage ,you will not be able to shift./// the clutch will not (disengage ) making it almost impossible to shift gears
clutch
The bell housing surrounds the clutch assembly. Mounted between the engine and the transmission.
Clutch plates are sticking - get your clutch checked you might need a new one