I would first look at the idle jet to make sure it is not clogged. If the idle jet is ok, it is either a bad spark plug (not likely but a cheap fix), the carburetor out of adjustment or a faulty ignition.
50 nm
No.
Orange????
The vin number listed above is for a 2001 KTM 50SXR.
4
50:1
My manuel recommends 40 to 1on my 2001 ktm sx I've never had any problems with it..
KTM recommends Motorex Top Speed 4T 15W50 oil 0.7 L
With stock gearing 70-73 mph
yes there is the ktm ktm 85 ktm 110 ktm 125 ktm 150 ktm 250 ktm 500
ktm
Motorex, SAE 15W-50