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British Bikes / Re: Albion gearbox BF436 - where used?
« on: May 11, 2026, 05:16:37 AM »
Could be a “5”.
Does BF mean something?
Does BF mean something?
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British Bikes / Albion gearbox BF436 - where used?
« on: May 10, 2026, 06:04:08 PM »
Does anybody know where this gearbox (2 gears?) was used?
As it is not equipped with a kickstarter it might be a stationary engine.
Thanks!
As it is not equipped with a kickstarter it might be a stationary engine.
Thanks!
3
British Bikes / Re: Villiers centre piece carb MKII: internal dimension?
« on: August 13, 2025, 08:54:47 PM »
Thanks all clear.
Any tips on an address to buy new centre pieces?
In Europe they seems to be not available.
Any tips on an address to buy new centre pieces?
In Europe they seems to be not available.
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British Bikes / Re: Villiers centre piece carb MKII: internal dimension?
« on: August 11, 2025, 09:53:50 PM »
Thanks!
Is there any overview of the dimensions of the centre piece and needle?
I noticed that from the top at 60% of the total length of the centre piece the internal diameter is less than above and below for roughly 5mm length.
So the internal hole of the centre piece becomes narrower slightly below the middle of the total length for only 5mm. After that the diameter looks the same as from the top.
Is this correct?
I also saw this at centre piece 3.
Is there any overview of the dimensions of the centre piece and needle?
I noticed that from the top at 60% of the total length of the centre piece the internal diameter is less than above and below for roughly 5mm length.
So the internal hole of the centre piece becomes narrower slightly below the middle of the total length for only 5mm. After that the diameter looks the same as from the top.
Is this correct?
I also saw this at centre piece 3.
5
British Bikes / Villiers centre piece carb MKII: internal dimension?
« on: August 09, 2025, 06:15:53 PM »
Hello everyone I do have a MKII carb (1 1/8”) fitted on my 148cc XIIC engine and do have several centre pieces as option.
I do have 2, 3 and 4 (smallest).
Does anybody knows the internal diameter of these centre pieces?
Thanks!
I do have 2, 3 and 4 (smallest).
Does anybody knows the internal diameter of these centre pieces?
Thanks!
6
British Bikes / Re: Villiers XIIC 148cc doesn’t run anymore
« on: June 06, 2025, 02:07:59 PM »
All thanks!
Indeed the bush on the right side is worn.
Any option to buy new ones to be fitted on the polished main shaft?
Or just have a copy made?
Indeed the bush on the right side is worn.
Any option to buy new ones to be fitted on the polished main shaft?
Or just have a copy made?
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British Bikes / Re: Villiers XIIC 148cc doesn’t run anymore
« on: June 01, 2025, 04:38:04 PM »
Thanks!
What about the positioning of the piston?
Is this the right way?
You are looking at the left side of the engine as you can also see the “L” on the case.
What about the positioning of the piston?
Is this the right way?
You are looking at the left side of the engine as you can also see the “L” on the case.
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British Bikes / Villiers XIIC 148cc doesn’t run anymore
« on: May 30, 2025, 03:41:36 PM »
Need help!
My Villiers XIIC 148cc long stroke engine has been running briefly and then it has no stroke. I have already done all sorts of things; replaced gaskets, new spark plug, reset timing, had cylinder loose, disassembled carb etc.
What is striking is that even after many start requests, the spark plug is not wet. Carb is a 1 1/8" Villiers with needle adjustment, needle 4.5 and nozzle 2, so should get quite a bit of petrol.
But what am I overlooking? Is it sucking in false air through the bronze bushings on the crankshaft?
Any tips welcome as I don't know any more.
My Villiers XIIC 148cc long stroke engine has been running briefly and then it has no stroke. I have already done all sorts of things; replaced gaskets, new spark plug, reset timing, had cylinder loose, disassembled carb etc.
What is striking is that even after many start requests, the spark plug is not wet. Carb is a 1 1/8" Villiers with needle adjustment, needle 4.5 and nozzle 2, so should get quite a bit of petrol.
But what am I overlooking? Is it sucking in false air through the bronze bushings on the crankshaft?
Any tips welcome as I don't know any more.
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Identify these bikes! / Re: Villiers stationairy engine
« on: May 12, 2025, 04:00:31 PM »
Thanks again!
Sorry I misunderstood the preference of an alloy piston compared to a cast iron.
What is in your view the biggest advantage of having an alloy?
Indeed I also have cast iron ones found only so far.
Sorry I misunderstood the preference of an alloy piston compared to a cast iron.
What is in your view the biggest advantage of having an alloy?
Indeed I also have cast iron ones found only so far.
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Identify these bikes! / Re: Villiers stationairy engine
« on: May 11, 2025, 03:28:35 PM »
Would you be able to date this engine as well?
I do have a used cast iron piston at 54mm without rings which is for sale.
Please drop me a message including an offer.
I do have a used cast iron piston at 54mm without rings which is for sale.
Please drop me a message including an offer.
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Identify these bikes! / Re: Villiers stationairy engine
« on: May 07, 2025, 01:39:37 PM »
Thanks all!
I already noticed these paired numbers.
I already noticed these paired numbers.
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Identify these bikes! / Re: Villiers stationairy engine
« on: May 06, 2025, 08:21:56 PM »
Hello, thanks for all very interesting information on Villiers engines.
I do have a bike with a Mk XII-C with the number GY 7019.
Will you be able to date this engine?
It has an aluminium flywheel installed where I have seen others having a brass one.
Potentially this change over can be dated as well.
I do have a bike with a Mk XII-C with the number GY 7019.
Will you be able to date this engine?
It has an aluminium flywheel installed where I have seen others having a brass one.
Potentially this change over can be dated as well.
14
Identify these bikes! / Re: Villiers stationairy engine
« on: May 05, 2025, 09:32:20 PM »
Unfortunately there isn’t
15
Identify these bikes! / Villiers stationairy engine
« on: May 04, 2025, 05:35:03 PM »
Who can help me identifying this engine?
Looks like it is from the thirties.
Stroke is roughly 62mm.
Looks like it is from the thirties.
Stroke is roughly 62mm.
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