Hey wow! I bought one of those back in 1984. It was one of my favorite bikes. As far as the forks go, I had a Simons fork kit and stiffer springs. I doubt you can still get a Simons kit. If you can keep those double leading shoe brakes adjusted, they work great.
I rode that bike for about a year. The end of the crankshaft that holds the flywheel twisted off. The bike was over a year old. KTM supplied free replacement parts, and my dealer fixed it for free. Problem was, while I was waiting for parts I bought a 1985 MStar GM 500. Couldn't be without a ride, don'tcha know.
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'00 Honda XR400
'73 Maico MC400 (most of it anyway)
'73 CZ 380
'70 Bultaco Sherpa T
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