SOHC.co.uk Forums > CB350/400
Something I can't find
Athame57:
Can someone help me find the part numbers for the screw and locknut arrowed in the image supplied? I went to the CMSL site to find it on their exploded plan of the carb assembly so I could pull up the part number to put in the DSS search box but I can't find them on that plan. :o I want to get these replaced because mine are just too rusty to rescue anymore.
Skoti:
That looks like a non original Honda set screw with a slotted head like that.
If you want something that looks original then probably a JIS headed set screw and flange nut the correct length would do nicely.
Plenty suppliers online but postage would cost more than the items.
Why not try your local Honda Power equipment dealer or motorcycle dealer first?
Laverda Dave:
They are definitely the correct screws, Honda used slotted pan head screws in this location for easier(??) adjustment.
I don't know what the sizes are but I can say they are very fine pitch.
Are you sure they are beyond saving George? Personally I would take them off and take them to the plater not far from you, Ashford Chrome Plating who are actually located in Crayford, about a 15min walk from the train station. They can relate them for you. They should be yellow passivated. When you remove them make sure you measure the length of the thread protruding from the locking nut on each one and make sure you draw a diagram with a number of the carb where each adjuster fits as they operate the choke flaps and you need all the flaps to fully open when running. The best way to do it really is to take the carb bank off the engine so you can see what you are doing.
If Ashford platers are unable to save what you have I would be surprised.
Athame57:
Thanks for this Dave. The image btw is a screen grab of Ebay.
Skoti:
It looks like those screws and nuts are only supplied with a complete carb assembly.
On the CMSNL parts diagram linked below I think possibly the screw and nut you refer to are shown to the left of the carb slide, item 107?
https://images.cmsnl.com/img/partslists/honda-cb400f2-england-engine-group-1j-1k-2j-2k_bigma000081e01-4_3e89.gif
Anyhow, good luck.
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