My 2001 KTM 250sx is stuck in gear, the shifter moves up and down but does not change the gears. I removed the clutch everything is pefect, gonna pull the basket. Any ideas? I have seen other saying bent shifter forks and other saying broken springs but no one has said they have fixed the issue by spliting the case. Would rather not split the case. Any ideas?

Duplicate question.

Is this a genuine part if not the part may be at fault also if not is there any dirt through the hole in the crank case the gear shaft goes through a simple solution is to use a multi tool and sand the shaft or crank case hole

did you recently overheat the engine? it may be locked up. put the bike on a milk crate so the back wheel is off the ground. put the tranny in 3rd gear, and spin the back wheel. if the wheel wont turn, you burned up your motor, (seized your piston to the cylinder by overheating or running out of oil) or fried your transmission. if it turns the motor, you probably broke a tooth on the kicker gear anddthe broken piece is stuck in the gear..

have you tried the plug and carby setting .. i have a similar issue but cannot tune the carby correct

How is your clutch? Does it slip or drag when starting out? When you put it into 1st gear when starting out does the bike lunge forward? Hold it in first gear with the clutch in and rev the bike up. See if the bike wants to move forward with the clutch in.It sounds to me like your clutch isn't set right or getting worn out. Much easier to shift at low rpms on a clutch than high rpms. I hope this helps...

Either the shift linkage could be binding or you may need to adjust the clutch.
The other problem might be a synchronizer in the transmission going bad.

look on the base of the shifter near the indicator there is a little cover remove it and poke down on it with a screwdriver or anything that will fit then move it out of gear

If the engine still turns, you will most likely need to get the transmission (Cases) split open. First check to see if the shifter lever moves up and down, and if not, this may be a good place to look into. If not, a bent shift fork, notched shift drum, or bad gear could be the issue.

this sounds like the selector fork has broken inside the gear box so its a strip down to sort this one out

2001 ktm 300 takes 800ml of oil drain plug is below gear shifter. oil level plug is below water pump