you have to take gas tank off.
NGK BR8HS with a .032" (0.8mm) gap
In the center of the head (on top of the cylinder).
Pro Circuit pipe for KTM 50 is between $199 and $250 depending on where you buy one.
The KTM 50 SX Junior is 23 inches, the 50 SX Pro Senior is 25.6 inches.
The Yamaha Pro 50 outboard requires an NGK BR8HS-10 plug, gapped to .039in.
10w30 is what ktm recommend for a 2 stroke engine
about £1400
500ml of aft3
KTM recommends .15L-.20 L of Motorex ATF Super.
0.028"
the 50 mark