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Topics - Athame57

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Misc / Open / What would have happened?
« on: November 26, 2023, 06:16:33 PM »
I must have had a senior moment when I was reassembling my carbs recently, I had forgotten to replace the tube part of a needle jet on the most left hand carb, unless it really was the garage it had been to recently(?)  :o
I ended up breaking down with fuel starvation miles from home and had to be rescued. Now I've replaced the part with a bit of help from Steve at 400bits because they item seldom features in carb repair kits or on it's own. (see image)
I wonder if one of the great experts on here can tell me what would have been happening in the run up to conking out and not starting again?  ;D

Humour / Funny Bunny
« on: October 20, 2023, 12:05:19 PM »
Elton John has just bought a treadmill for his pet rabbit.
I thought that's a Little Fit Bunny….. ;D

CB350/400 / Checking the dip stick
« on: October 09, 2023, 10:01:39 AM »
*Swallows pride* The manual it seems shows this for the 350 and it says oil level should be up to the upper level of the dip sticks measuring area, however it looks different on the 400/4 and I've always settled for the halfway mark, right or wrong?

CB350/400 / Flooding carb..
« on: October 05, 2023, 03:25:20 AM »
One of my carbs has been flooding, ie the overflow leaking. This I can stop by tapping the thing with a spanner a while, but what should I really be doing? 

CB350/400 / Starter motor not starting engine.
« on: September 23, 2023, 10:16:52 AM »
My starter motor is sounding ok in itself when I push the button and I know the battery is ok, but it isn't starting the engine. For that I'm relying on the kick start  which is working fine. Any ideas?

Humour / His Majesty's Potholes.
« on: September 16, 2023, 08:18:58 PM »

CB350/400 / Bike isn't recharging the battery
« on: September 11, 2023, 05:39:55 PM »
My bike isn't recharging the battery, is the rectifier or alternator the most likely culprit?

CB350/400 / Rubber repairs and electricity.
« on: September 06, 2023, 05:49:33 PM »
I have scoured the planet to find the original rubber mounts for the starter solenoid ( see file) because they properly enclose the thing and tuck it away upright unlike the aftermarket one I have now that leaves it open to the elements. I had to settle for a top cover with a hole in it and I used a puncture repair patch to deal with that, but I've been advised one can't just use any rubber for a location like that....correct or incorrect?

Misc / Open / UK or GB national stickers on historic vehicles
« on: September 05, 2023, 08:35:27 PM »
I've made a point of putting a black and silver GB sticker on CB400F. I already have a historic style black metal number plate as is allowed, but what about the national identifier we have to wear abroad, even on motorcycles I've just learnt, I never complied though. I dislike the UK sticker as opposed to GB, did political correctness cause it?  ::) I feel many continentals will mistake us for Ukrainians too, confounding the object of the thing. Anyone know the finer points here?

CB350/400 / Missing stays
« on: August 27, 2023, 09:31:39 PM »
The hook shaped harness stay below the steering head (arrowed in image) is missing on my bike and given that I can't find it on CMSL diagrams I guess it isn't a separate part but a thing that was welded to the frame from the start as is the much smaller one a bit further back, the latter snapped off by my own hand (ham-fistedness ::) )
I'm now considering having replacements cut and welded on, but is it worth the trouble? Opinions?

CB350/400 / Float valve & needle CB350/400F
« on: August 23, 2023, 05:30:37 PM »
Is the float valve & needle of the CB350F interchangeable with the CB400F? The new one I purchased a while back for my 400 has CB350F 73 on the packet. Comparing the two my straining eyes aren't too sure they are absolutely the same. 

CB350/400 / Round seals and hexagon bowls...
« on: August 22, 2023, 02:50:50 PM »
See picture attached. Is there actually an easy way of making these round float bowl seals sit in the pentagon groove of the float bowl,  ::) obligatory red rubber grease has been applied. I'm ready to scream!   :o

CB350/400 / Oil in my air filter
« on: August 16, 2023, 02:19:46 PM »
Could a badly seated valve be causing my air filter to get oil stained via Blow-by gas circulator that exists on the CB400F ( I gather it was created to deal with US emission laws). There is no pooling of oil in it's housing and the drain system below it isn't blocked but they are both messy as usual. I have just fitted a new air filter last week but whatever the problem it has made short work of my air filter unless the staining you see in the pic is to be expected? There is some black smoke at high revs in a short burst in neutral but not enough to have worried me.

CB350/400 / CB350/400 air box rubbers
« on: August 09, 2023, 08:59:05 PM »
Are the air box to carburettor rubbers on the CB350 and CB400F interchangeable? The item for the  400 isn't being quite so easy to find just now.

Misc / Open / Using ACF-50
« on: August 06, 2023, 12:07:03 PM »
Is it safe to use  ACF-50 on really hot areas like exhaust flanges, and has anyone got an opinion formed about it's effectiveness generally?

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