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Topics - Athame57

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1
CB350/400 / Failing coil
« on: October 14, 2026, 10:59:06 AM »
My number one and four pistons didn't fire up the other day and given that they are served by the same coil suspicion fell there. I lifted the tank, cleaned a few things up and as I had them handy changed all plugs. All was well again after a brief ride. Today I start up nicely but within about twenty seconds things went bumpy with uneven firing and I was mostly back to two pistons, I'm not going anywhere except a workshop like that.
I'm not sure it is the coil though, I expect electrical things to fail in a complete way from the start.
This started one day after a lout on an e-bike pushed me over on the move but I don't really see a connection.
Your thoughts?

2
Misc / Open / Stubborn grips
« on: October 10, 2026, 08:29:12 PM »
I'm soon to change for the first time in eight years my handle bar grips. I remember the hell of getting them on then, anyone know an easy way?

3
Misc / Open / Tacho bug
« on: October 01, 2026, 08:08:41 PM »
I've had a wasp in my helmet a few times and a spate of grasshoppers hitching a ride all summer once, but now  a new one.
I have a Ladybird residing in my tachometer, I'll try to get a pic. It keeps crawling around the face of it while under way, the needle passes over it so it isn't getting hurt but it is a damn distraction!  :o I thought these things were supposed to be sealed units? Anyone got a suggestion, please don't mention insecticide!

4
CB350/400 / Brake squeal
« on: September 26, 2026, 06:18:46 PM »
Twice in the past four weeks I've had the caliper apart to copper grease the rims of the pads backing and check the leading edge of the pads themselves are bevelled, as well as greasing the caliper interior, and there is is again,  ::) I'm at  a loss by now. Ideas anyone, apart from oiling the disc that is.  ;)

5
CB350/400 / Oil filter bolt
« on: September 18, 2026, 10:47:49 PM »
Is there actually a torque setting for the oil filter bolt? I know it shouldn't be tightened as much as other bolts, but I always seem to get a mess start to develop over time between the housing and the lower part of the crankcase ...too loose?  ::)

6
Misc / Open / ULEZ and emissions, the future.
« on: September 15, 2026, 02:11:10 PM »
As time marches on more vehicles may end up with the historic status because all these eco restrictions they are exempt from are one more reason to maintain them, but is that jeopardizing our future? I guess I can only get opinions here!

7
CB350/400 / Exhausting mystery.
« on: August 16, 2026, 07:10:33 PM »
Where to start? A friend pointed out to me that the silencer on my bike hung suspiciously low. Looking at images on the web I can see it now. The silencer I have was recently identified on this forum as a non standard Thruxton that should be no issue, but I'm beginning to wonder if it was ever meant for a CB400F at all. There is no gasket between the silencer and collector box (is that normal for a Thruxton?) Fitting this system when I take it off is the devils own work, and especially since I got the after market header pipes and collector box, I blamed them but maybe it is really the silencer. Could this be why previous owner down he line never fitted exhaust gaskets in the ports, to make fitting easier? I'm beginning to wonder. Trying to raise it's position has another issue, the bolt that secures it to the rear sub-frame would get in the way of the centre stand, see photo 2 below. The bold slides into the housing on the silencer head first. I see on DSS that the housing for the dual fastenings has captive nuts built in lacking on my single one.

By now I have on my bucket list a DSS pattern silencer, but that isn't sold with the fittings I would need, and I can't find those on the CMSL diagrams either, maybe I just failed to identify them? Whatever, until I know what they look like and have a part number to help me hunt them down there doesn't seem to be a way forward, can anyone help with this?

8
Misc / Open / Ye olde Waddington's classic motorcycle gloves
« on: August 09, 2026, 02:33:31 PM »
Classic bikes deserve classic gear to go with them.  ;) I called in to The Junk Shop on Greenwich South St in Londinium, it's full of wonderful antique junk, you can even have tea & cake in the back garden (tiny) if you are seriously 'big' forget it the alleyways through all the stuff in there will be too challenging! I called to see if there were any real vintage goggles to be found, there wasn't but there was a pair 195/60s Waddingtons Rebel motorcycle gloves, complete with that classic flare to cope with the cuffs of a leather jacket. I paid £25.oo for them, which is probably a bargain, a much worse pair are on Fleabay for £47.oo and a better pair elsewhere for £63.oo.
They are stiff as rigor mortis but no cracks or splits, so Mink oil has been ordered too to soften the leather and saddle soap to finish I already have, I use it on my other things.
What I ve got doubts about is how to clean the inside, the wooly lining is hard and seems to be glued (?) direct to the leather, see image 4.
Anyone dealt with this one before? Ideas?

9
Misc / Open / How can two 10w40 mineral oils be different?
« on: August 06, 2026, 01:13:22 PM »
I recently ordered my oil of choice, Westway's 10w40 4T  mineral oil for classic motorcycles on eBay.  But this was not before I spotted something and cancelled in time the first order. I had noticed the smaller writing on the illustration that said it was merely engine oil, it turns out for the likes of stationary engines like diesel/petrol generators and plant equipment. Would I have been in much trouble if I'd to have gone on and used it?

10
Misc / Open / A nice little parcel.
« on: July 10, 2026, 06:15:36 PM »
I got a nice little parcel today, it contained 4 x 10mm sockets.  8) I'm so fed up with looking everywhere for it when I need it  ::) I thought 'hey, buy a bunch of them and this won't happen'. We shall see! ;D

11
CB350/400 / Brake Drum Dust Seal
« on: July 03, 2026, 08:37:50 PM »
I finally decided to fit the dust seal and washer for my rear brake drum. Alas, it caused so much trouble when I went to put everything back together I gave up with it. It was stopping me from getting the brake arm fit in a way that let the securing bolt pass through the recess in the brake shaft. Is this unusual, is it really important anyway? :-\

12
CB350/400 / Rear brake return spring
« on: July 02, 2026, 12:12:13 PM »
Does anyone know of any images or diagrams to show how to fit the return spring at the pedal? I've only just discovered this bit is missing  ;D and now bought one, but it looks like it may be difficult.  ::)

13
Misc / Open / Why might my speedo be failing?
« on: June 13, 2026, 02:45:26 PM »
A couple of weeks ago my speedo stopped. Time for a new cable I thinks, so I got one on fleabay. After fitting all was well a few hours, and it stops again. I figured I had bought a naff one, but also observed my routing wasn't very good.
Okay, so I get another speedo from a different source and went to change them over but couldn't find anything wrong with the one I'd just taken off. Fit new one anyway and all was well for a few hours and zunk, it stops again. I take off cable, check it and refit but nothing.  Any ideas what might be happening?

14
Misc / Open / Cleaning tyre walls
« on: June 10, 2026, 07:13:47 PM »
I'm getting that ugly brown colour on my tyre walls again, it might be something to do with the extended life span of old peoples tyres, the compound K tyres on my RG500s never lasted long enough for this.
But is there a good solution, some cleaning agent that works best?   

15
Misc / Open / Small paint repairs
« on: June 01, 2026, 08:47:02 AM »
Thanks to bars being set a bit too low the switch gear came into contact with the tank making a hole in the paintwork about the size of a match head, also strip of paint that came away when I took off some masking tape that was supposed to protect the tank when I refitted it.  ::) the effect I reduced by using a fine paint brush to apply some paint first sprayed into a cup, but it isn't very good. Is this the sort of thing a professional can deal with without doing the whole tank again, any tricks among you to share?

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