1.2 litres
No
Yes they just made it street legal because everyone was just converting them illegally anyways.
It depends on the name brand , output, exc. call around your local parts stores for prices.
There is no fuel/oil ratio, the 03 KTM 450 EXC is a four stroke. See link below.
Stock 04 250 EXC has29 hp.
The KTM 500 has the the same bore as the 525. In EXC configuration (6-speed) with stock gearing it is good for 95 to 100 mph.
Got this off of KTM talk, 44HP for a 450 exc.
No, 93-97 ktm 250-360 exc will fit it, not much else. found out the hard way on my 96 ktm 360exc
52
Book values as of 2002: NIB Exc V.G. Good Fair Poor 525 425 325 250 150 100 Present values slightly higher
it is about 37 horsepower