Hi there. I’ve been restoring this 400ex and my last item is to get it running smoother. It runs and drives fine but as you can see its pretty rough idling/stopped.
I was told it has a 440 kit in it but I don’t know that for sure to be true. I do know it has a big gun rev limiter and I put a new DC RCM I muffler on what I believe is the stock header. Carb appears to be stock.
I installed a new plug, changed oil and filter, new air filter, adjusted valves(maybe I screwed that up?). I adjusted the pilot screw 2.5 turns out and this is how it’s running. There may be a little to much oil as the level seem to have gone up after the change which is weird. This could be the source of the smoke, or to rich or bad rings/seats? It isn’t a ton of smoke, not even enough to register on the video i don’t think.
