Just picked up an 89 KTM 500 DXC that has apparently been revalved/resprung for MX riding for dirt cheap. God this thing is insane. No powervalve. When the powerband kicks in it's a sky high wheelie in any gear at any speed. So of course I decided to take it to the MX track the day after I bought the thing so I could thoroughly scare myself silly. And of course I haven't ridden on an MX track in about 5 years, maybe more. Great combo right?
http://s1134.photobucket.com/albums/m610/Joelberg/?action=view¤t=2011-05-27_15-05-53_653.mp4Here's the best video of my awesome goon riding technique. The rest were far worse. Gotta say that this was the wrong bike for getting back into MX riding, but I'm not crying. I'm cruising in 4th gear in the short video because if I was in a lower gear, I'd have hit the powerband and done a nice bronco air with the bike vertical and me trying my best to keep the front end down.
So the real reason I'm posting this thread is a plea for jetting settings. I was hoping someone out in COGdom might have some experience with one of these widowmakers and could give me a hint where I should start jetting for low end torque with my DellOrto VHSB 38 carb. Right now the settings are a bit lean, as the spark plug registers grey. I'm riding between sea level and 4000 ft. Does anyone know a good baseline I should start jetting this bike from? I know I'd rather run fat than lean, but to be honest, this bike makes so much power I am afraid to take it past 1/2 throttle except on the asphalt!