SOHC.co.uk Forums > The Black Bomber Board
1969 CL450 US Barn Find Restoration
JamesH:
That’s looking really tidy Dave. Great progress...
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MrDavo:
Thanks James.
I got the carbs back from the friend who was ultrasonically cleaning them, although they came back cleaner the jets were still blocked up and crusty.
After a bit more cleaning by hand I tried to get the jets out, only to find they were well stuck, rather than chew up the soft brass with a screwdriver or damage the carb bodies I went for the heat option with my blowlamp. I didn't get off to a good start, applying a little heat to the posts that hold the pin for the float, the solder came undone and the float fell off its mounting tab! I could try and resolder it, but I think my float height could be right up the spout if it doesn't go back exactly right, plus the seam around the float may come apart. They are available new from DS so I have ordered one. The other pin came out cold, once bitten twice shy.
I've never dismantled carbs using a blowlamp before, it was quite nerve racking, but with careful heating and selection of the right screwdrivers I managed to get the jets and drain plugs out eventually, as well as being bunged up with crud the jets aren't standard size as per my parts book, the mains are 120 rather than 130, I don't know why, so I will order two rebuild kits with new ones to be safe. Individual jets don't seem to be available from Honda so I'm stuck with buying a complete aftermarket set from D Silver.
A question for James, on your two CL450s, is there anything attached to the negative side of the battery other than the earth strap? As well as the fused +ve supply to the loom and the +ve cable to the starter relay I have a black lead from the loom that has been joined to a non standard wire with an eye on the end that could go to either terminal. I think its possibly the feed from the regulator to the positive terminal, but I want to be sure before I connect it up, not that I have a battery yet. Photos in the manual and of bikes for sale on ebay are not clear about what goes where, so perhaps you could check for me? Thanks.
AshimotoK0:
Not sure if these are suitable for K1 but can do you a 'forum' deal if they are Dave. Jensen is bound to know if you PM him. (he bought a set and tested them). They are definitely rocking horse poo parts.
https://www.ebay.co.uk/itm/143038522102?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649
MrDavo:
I think my carbs are different, Ash, the kits you link to are for 1965/66 black bombers. My carbs are stamped 14H, I just went to look.
My bike, strictly speaking a K2 which has ended up in K1 clothing somewhere along the line, doesn't have springs in the vacuum pistons either. They may be missing, but there's none shown in the parts book.
There may be an upgrade kit for the K2 too, but maybe the flat spot had been fixed by '69, I don't know. Could explain my non standard jets though.
JamesH:
Dave - I should be doing some work on the red bike next week - so I’ll pull it out and get some reference shots for you/check the earth cable situation. James
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