- Joined
- Jul 8, 2011
- Messages
- 19
Thanks all for your many comments! Catching up now since my post yesterday on throttle cable increasing revs. I also spent time looking back at many related older posts for a fix.Exactly !
Tying the splitter to the frame (or similar) definitely helps to keep twin carbs in balance.
You want as little movement as possible twixt carb and splitter, and ideally you want those cables to be as short as possible and routed identically, so the pull is always even and those individual cables do not move and stretch differently to each other.
Then having only one cable going to the handle bars means that it doesn’t matter a jot how much it stretches, it cannot effect carb balance.
Doing it in this way basically acts like a poor man’s gantry.
I don’t want to sound like a cable snob, but I see lots of bad cabling on old bikes. You can’t just throw them on and be done. Especially if using a splitter, you need to ensure that the twistgrip opens the slides all the way rather than the cable topping out in the splitter. With chokes fitted, you need to ensure the choke slide closes and opens fully. With all cables you need to ensure smooth action, avoiding tight turns and tight cable ties etc. AND you need to ensure that moving the bars does not effect the cables functions (back to the OPs issue). Personally, I spend a lot of time routing cables when building a bike and often try several ways before I’m happy.
Fast Eddie here seems to give me an answer I wanted to hear. If I summarize things correctly, it appears if I secure the splitter to the spine then the lower cable pair are in a solid position. If I can assure the single cable from the twist grip has a smooth routing and free to float, then I'm good.
I do have a solid, angle tube with slack adjuster & lock nut just off the twist grip. Currently I have that adjustment set to give me zero play (no slop) when twisting throttle off idle...I may loosen that a bit. I also assured the carb slides are synced and there is no play at the carb cable ends and at the cables in & out of the splitter.
I'll post later once I pull the tank and try again.
Dave