SOHC.co.uk Forums > Project Board
Doms CB550F1 project
DomP:
This morning if made a few discoveries, I had set my float heights to 21mm not the 22mm that they should be. At least one carb had a twisted float, pushing one side up before the other by around 1.5-2mm. That must mean I'm getting too much fuel through which may be part of my rich running may be?
I then set the bench sync as suggested by Ken, a really simple and effective method I found. I've posted a few photos to confirm its all good to proceed to refitting. Mr Honda was having a laugh when he agreed on the carb set up on these, I need a first aid kit just to get them out!
DomP:
Carb gaps all look OK?
DomP:
This is the position of my idle screw when just making contact with the adjuster, is this about right?
The cammed stop I'm pointing to with a screwdriver, is that to set max throttle travel or minimum?
Oddjob:
The screwdriver pointed one is called the Overtravel Stopper and it should have a gap between it and the butterfly of between 8-12 thou or 2-3mm.
There is another screw (with spring) on the back of the same bracket, this is to prevent the slides locking in place if the throttle is opened too wide, you should adjust this so that when the slide is fully up and the edge has just gone above the carb body you use that screw to set the travel to that amount. It is possible to jam the slides right at the top of the carb and this would mean WOT with no way of stopping the engine except the kill switch.
The idle screw should be making contact, it's what sets the idle speed, if it doesn't make contact and the engine idles it means the throttle slides are set too high.
DomP:
Yeah that's just how I've left the idle control until I install the carbs, they are right down as far as they will go with just a glimmer of light entering through them.
Thanks for your help Ken, fingers crossed it will run better once I get them back on.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version