1) Warm the bike up to operating temp, shut it off and get the bike level.
2) Remove the drain plug.
3) Clean the drain plug, it will have a magnetic tip to catch any metal shavings.
4) Once all oil has drained out, clean the surface of engine around the drain plug hole and insert the drain plug and tighten to the recommended torque.
5) Now, pull the fill plug on the right side of the engine. Add your oil, replace the filler plug and start and check for leaks.
A ktm 65sx will go about 43 but with fmf pipes it will go close to 50
KTM recommends Motorex Top Speed 4T 15W50.
Transmission oil Motorex, SAE 15W-50
According to a KTM bulletin for 2006 models, .3 L. You can view the bulletin here: http://74.125.95.132/search?q=cache:rFOyaY4tY0EJ:www.ktmriders.nl/modules/downloads/KTM%2520Engine%2520Oil%2520Recommendation.pdf+gear+oil+for+a+KTM+65SX&hl=en&ct=clnk&cd=3&gl=us
good bike
14
about $2g/$4g
faster than a ktm 65sx !!
16.192 ounces
The head is gone
According to a KTM bulletin for 2006 models, .3 L. You can view the bulletin here: http://74.125.95.132/search?q=cache:rFOyaY4tY0EJ:www.ktmriders.nl/modules/downloads/KTM%2520Engine%2520Oil%2520Recommendation.pdf+gear+oil+for+a+KTM+65SX&hl=en&ct=clnk&cd=3&gl=us
40:1 is a good mixture.