I have the cycle-x manifolds and VM34s on a CB750K2 engine in my trike. I didn't buy them, it was the PO that put these on. They run, but I'm still doing things to get this trike on the road, so I haven't been able to really sort them out. In fact I just stripped one of the carbs down completely, last night.
I contacted cyclex to ask how they typically set these up for a stock CB750K2. This was the response:
#25 pilots with a starting point of 3/4 turn on the air mixture screw.
6dh8 needles with the clip 1 notch from the bottom.
159-02 needle jet.
200 to 240 main jets.
These starting points are with free flowing exhaust and free flowing air filters.
The carbs should not be sticking out sideways.
I found that mine have:
- #35 pilots and about 2.5 turns out on the air mix screw.
6dh8 needles with the clip in the middle notch.
159-O2 needle jet
240 main jets
I know I'm running rich in at least the pilot circuit... plugs are black and I have some light white smoke at idle. But I haven't been able to run it at mid or high range, yet. I also have been getting gas out from the bowl overflow tubes, so I'm sure I have float adjustments to be made.
