The KTM sx is fast but the yfz is the best for what I do, what kind of riding do you do?
For the 2000 SX 400 KTM recommends SAE 10W-40 wt.; Capacity 1200cc See link below for technical specs.
The 450 SX is a single cylinder 4 stroke, so no you do not mix gas.
For a 250 SX KTM recommends Motorex Top Speed 4T 15W50 (.7 L). For a 250 SX-F KTM recommends Motorex Power Synt 4T 10W50 (1.1 L).
The sx is for supercross.
under the gas tank
65 mphIt is the top speed of KTM 85 sx.
The KTM 360 SX is still a good bike, like all other KTM's dependable but parts are expensive when you need them. Here is a link that has pictures of the 360 SX: http://www.bikepics.com/ktm/360sx/
no. because there is no solenoid of any kind on a 125sx.
no it does not
Highly unlikely, I would suggest finding someone who has an 07 and checking the fit before I buy one.
you have to take gas tank off.