SOHC.co.uk Forums > CB500/550

One job done !!

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corromant:
Well that's the fuel hose's replaced, tried to do it in situ but you were right mickwinf I had to take the carbs off.

Discovered that two of the air box to carb rubbers had splits in them so that's another few days waiting till a new set arrives. Also noticed that there is no drain hose from the air box this looks to need 12mm bore hose, can anyone confirm this before I order some.

A question for when I come to replace the carbs, should the air box rubbers be attached to the air box or to the carbs before refitting, I ask as it was rather tight getting the carbs out.

Conrad

hairygit:
I leave airbox rubbers attached to the airbox, then it is just a matter of pushing the complete airbox onto the carbs, making sure the securing clips are in place and slacked right off.

Trigger:
I have done this over a hundred time and found the best way is to remove the 2, 6mm bolts from the stays that hold the air box. This will give you a extra inch to play with. Put the carbs on to the air box rubber and get someone to hold them in place, while you make them a cupper. Poor the rest of the boiling water into a container and drop the inlet manifold rubbers in for a minute until soft. They will now go on a lot easier  ;)

corromant:
New air box rubbers arrived today, so out after tea & got the carbs refitted, tank on & crossed fingers. Tank off again & reconnect throttle cables (more haste less speed) fingers crossed again, choke on press of the starter & she burst into life, bit rough also a bit smokey especially on the left hand cylinder, also discovered that at anything less that 2000 rpm the oil light comes on.

So packed in for the night to have a think. I have a new pressure switch so I guess that's first thing to try & perhaps remove & inspect the pump. Did think that the oil smoke got better as it ran briefly so that may settle but need to get to the bottom of the apparent lack of oil pressure. Hope this doesn't end in a full strip.

Bryanj:
What exact model is it? In all the years i been at these i have only ever seen 1 shot crank

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