31
British Bikes / Re: Bonneville's Got a Crunch
« on: October 07, 2025, 02:24:43 AM »
Good call ...
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32
British Bikes / Re: Bonneville's Got a Crunch
« on: October 05, 2025, 10:44:25 PM »
A 'crunch' doesn't sound at all normal, or like any of the common ailments !
Have you checked for in-out movement of the basket, or up-down play in the shaft.
Chains that are overtight is another remote possibility. ?
Have you checked for in-out movement of the basket, or up-down play in the shaft.
Chains that are overtight is another remote possibility. ?
33
British Bikes / Re: Help identifying a petrol tank
« on: September 26, 2025, 01:51:27 AM »
1947 C10 ?
Dunno about the blue paint ...
https://www.webbikeworld.com/wp-content/uploads/2021/08/47BSA-C10-R.jpg
Dunno about the blue paint ...
https://www.webbikeworld.com/wp-content/uploads/2021/08/47BSA-C10-R.jpg
34
British Bikes / Re: Villiers headlamp switch
« on: September 19, 2025, 09:24:12 AM »
Hmmm, thats a fairly exotic beast !
And it does have a few suspension points that would require greasing.
Is there only the one and only ?
And it does have a few suspension points that would require greasing.
Is there only the one and only ?
35
British Bikes / Re: Villiers headlamp switch
« on: September 18, 2025, 07:08:27 AM »
This headlamp is 5 1/2 ", and the switch hole is 1 3/4 "
Anyone know what (Miller ? ) switch this is likely to require. ?
Dunno Leon, tell us ....
Anyone know what (Miller ? ) switch this is likely to require. ?
Dunno Leon, tell us ....
36
British Bikes / Villiers headlamp switch
« on: September 16, 2025, 07:20:59 AM »
Bit slow here, need something to git thungs movin agin ?
Anyone care to explain the Villiers headlamp switch ?
Waratah/Excelsior 125cc circa 1945
I thought it was a Miller, but new/replacement has a chrome ring around it.
And would be (slightly) too big to fit ??
What retains it - a large wire circlip ?
DIM/OFF/FULL
https://britcycle.com.au/wp-content/uploads/2025/04/Miller-Headlamp-Switch.jpg
Anyone care to explain the Villiers headlamp switch ?
Waratah/Excelsior 125cc circa 1945
I thought it was a Miller, but new/replacement has a chrome ring around it.
And would be (slightly) too big to fit ??
What retains it - a large wire circlip ?
DIM/OFF/FULL
https://britcycle.com.au/wp-content/uploads/2025/04/Miller-Headlamp-Switch.jpg
37
British Bikes / Re: Villiers centre piece carb MKII: internal dimension?
« on: August 13, 2025, 11:22:46 PM »
Villiers Services in the UK is the goto place for Villiers bits.
No idea if they have these particular parts.
https://villiersservices.co.uk/
No idea if they have these particular parts.
https://villiersservices.co.uk/
38
British Bikes / Re: Whatsit?
« on: August 11, 2025, 12:15:16 AM »
Is the bike blue, or has it been.
There-in may lay a clue .... ?
There-in may lay a clue .... ?
39
British Bikes / Re: What is this BSA Frame??
« on: July 28, 2025, 11:23:29 PM »
1920s BSA's had an I-section backbone, but I'm not sure if it was like that.
Something about Francis Barnett's "built like a bridge" comes to mind also,
with all those bolted joints ?
Something about Francis Barnett's "built like a bridge" comes to mind also,
with all those bolted joints ?
40
British Bikes / Re: AJS 16M 1951
« on: July 26, 2025, 03:57:02 AM »
We are assuming there is nothing untoward going on here,
like a case full of broken teeth jamming up the works. !
Without a full inspection, its a bit of a lottery if this will be good.
Draining the oil and inspecting what comes out is a useful diagnostic tool.
If its nice and clean (and new) it can go back in ?
like a case full of broken teeth jamming up the works. !
Without a full inspection, its a bit of a lottery if this will be good.
Draining the oil and inspecting what comes out is a useful diagnostic tool.
If its nice and clean (and new) it can go back in ?
41
British Bikes / Re: AJS 16M 1951
« on: July 26, 2025, 12:01:48 AM »
Can you turn the box over at this point, using the back wheel.
The leading 2 teeth on that quadrant are not ground down at all.
This gives a rather brutal initial engagement, and they can jam.
Ground down a bit, they lead into the others, and swing into action. !
If that were mine, I'd get out the angle grinder with a thin blade,
and shave a bit off the 1st 2 teeth. Keep the same basic tooth shape,
just shaved a bit, and no sharp edges left. Easy does it....
The leading 2 teeth on that quadrant are not ground down at all.
This gives a rather brutal initial engagement, and they can jam.
Ground down a bit, they lead into the others, and swing into action. !
If that were mine, I'd get out the angle grinder with a thin blade,
and shave a bit off the 1st 2 teeth. Keep the same basic tooth shape,
just shaved a bit, and no sharp edges left. Easy does it....
42
British Bikes / Re: AJS 16M 1951
« on: July 25, 2025, 08:48:54 AM »
So can you now kickstart it OK ?
Is that a fast click click, or slow
The chain contacting something could be a slow click,
but a fast one needs further investigation.
Even the tyre contacting something
Don't recall, is this bike new to you.
Some fettling is to be expected....
P.S That box is later than the CP expected for 1951 ?
Is that a fast click click, or slow
The chain contacting something could be a slow click,
but a fast one needs further investigation.
Even the tyre contacting something
Don't recall, is this bike new to you.
Some fettling is to be expected....
P.S That box is later than the CP expected for 1951 ?
43
British Bikes / Re: AJS 16M 1951
« on: July 24, 2025, 08:55:46 AM »
If you google this problem, its exceedingly common with Burman boxes. !
The solution is to grind down the 1st tooth on the quadrant, and the 2nd tooth a bit.
Assuming you haven't reversed it from its original fitting.
Which can also be a fix.
Pulling the clutch in when this happens can also sometimes free things off.
The solution is to grind down the 1st tooth on the quadrant, and the 2nd tooth a bit.
Assuming you haven't reversed it from its original fitting.
Which can also be a fix.
Pulling the clutch in when this happens can also sometimes free things off.
44
British Bikes / Re: AJS 16M 1951
« on: July 23, 2025, 10:39:52 PM »
Have you tried turning the engine/gearbox over, via the back wheel. ?
And seeing if that makes any difference.
It sounds like the kickstarter is not meshed or located correctly.
Let me find the Ajay booklet to refresh the grey cells, if someone doesn't chime in sooner.
And seeing if that makes any difference.
It sounds like the kickstarter is not meshed or located correctly.
Let me find the Ajay booklet to refresh the grey cells, if someone doesn't chime in sooner.
45
British Bikes / Re: AJS 16M 1951
« on: July 23, 2025, 11:01:38 AM »
Good call. ?
On a twin, you'd just swap the plug leads over.
But 4 stroke singles don't work like that.
On a twin, you'd just swap the plug leads over.
But 4 stroke singles don't work like that.