Right folks, progress is good - tomorrow is a fuelling day. Before I start tearing my hair out trying to figure out what goes where I thought I'd pick your brains
So the stock airbox has two connections, one at the top which seems to be an inlet to a breather and this has an outlet port on the side and the other is on the right hand front as shown in the picture below:
I assume that the small port on the right is a breather from the valve cover here:
Question 1. Is that correct?
My next assumption is that the breather in the airbox connects to the large tube out the centre of the carbs as shown here:
Question 2. When is this overflow ever used?
Question 3. What should connect to the 'outlet' port of the breather on the airbox?
There is a linked breather (?) pipe on the top of the carbs as shown here:
Question 4. Should this vent to atmosphere?
There is another vac line which is already connected on my engine between the two left carbs here:
Question 5. What is this for, PCV?
There is a similar breather on the other side here:
Question 6. Where does this one plumb into? I think it might be one that is used on a standard bike set up to prevent fuel entering the carbs from the tank in which case can I just block it off?
Question 7. And finally, each carb has an outlet port at the bottom. Two of mine are joined together but 2 aren't and none of them go anywhere.
Thanks in advance