I made this splitter a couple of years ago. The XS650 has two BS38 carbs as stock, the 74 model had a twin cable throttle, one cable for each carb. Adjusting the throttle slides was accomplished by an inline adjuster on each cable.

A very fiddly process using the tiny adjusters, so I built this cable splitter and replaced the twin cable throttle with a single.

The splitter body is aluminium bored 14mm and threaded each end, the slide is brass and the end caps are aluminium. Picture was taken before I slit sawed cable entries. When finished I plugged the holes in the end caps, assembled the unit and dunked it in my anodising bath. The finish came up rather nice.

Rather than have a splitter flopping around inside the tank tunnel, I opted to fix It to the right top engine mount. I spun up some 3mm nipples, fixed them to the cables and dunked them in my solder bath.

To fix the cable to the carbs and allow for butterfly adjustment, I made a couple of brackets and spun up an elongated stainless adjuster. Yes, there is a lock nut for the adjuster, just not assembled in the picture.

This mod made syncing carbs a breeze.

Later on I binned the carbs, bought a couple of VM34 roundside's and installed them on custom manifolds. The carbs came with a small plastic splitter, but the round slide cable pull is quite a bit longer than the BS38 cable pull, so, the splitter didn't have enough pul, it now languishes in the useless parts bin.

I may make a splitter for the new carbs later on.

Edited By Tony sacc on 29/08/2023 07:43:50