SOHC.co.uk Forums > Project Board
Doms CB550F1 project
DomP:
Thanks Ken, can you link me to or remind me of the most reliable bench sync that will leave me with the correct amount of travel on the bell crank and idle screw?
Oddjob:
There are a few different ways and I’m not saying one is better than the other but I’ve always used this way myself and it seems to work for me.
Wind the main idle screw fully out so there is no chance of it touching. Now, look down the throat of the carb from the engine side. Adjust the vac screw so that the slide is fully bottomed out, flick the butterfly a few times so the slides lift and settle, just to make sure nothing is sticking. Now adjust the screw until the slide just starts to lift, use a torch on the air box side if it helps, do the same for each carb. Now wind in the main idle screw until it starts to lift the slides ever so slightly. Compare the gap, does it look the same? If so that’s close enough. I always vac gauge mine after anyway just to get that fine tuning. Never had a hanging throttle done this way.
DomP:
Thanks Ken that's essentially how I did it previously but I've found it ends up with a lot of adjuster threads showing and the throttle stop cam cabpnt be adjusted to touch. I'll have another look at it tomorrow and see where I'm going wrong.
Oddjob:
I thought it was meant to have a gap Dom
DomP:
Maybe I'm talking about the wrong part, the off set bar with a hex section on the throttle bell crank. I'll do a bench sync and take some photos tomorrow
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version