Bantam D10

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Velton
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Re: Bantam D10

Unread post by Velton » Sat Nov 19, 2011 1:32 am

Greenbat wrote:
Velton wrote:I THINK! (i.e. not 100% sure!) that the 4 speed motors have the points in a separate. small round cover on the Right hand end of the crank.

But please can someone confirm / correct this?


No, all D10's had switched to the wipac points/genny setup. Only D10 sport models had 4 gears, I THINK the engine numbers started D10S on them but not sure. The bike in question doesn't look like a sport though, they had hump back seats, different forks, headlamp, chrome lightweight mudgaurds and I think the D10 had full width hubs too. So unless you've been lucky and someone has swapped the engine, it'll be 3 speed. Though you can drop a 4 speed straight in if you can find one.


Thanks Greeno.
I sought advice "over there" and Woodie said the 4 speeders engine numbers are D10A not just D10 - and D. Creped said
"What oil level indicator does it have? A dipstick as the original 125s had, indicates 3 speed, a 4 speed has an oil level screw in the cover quite close to the gear / kickstart levers. Where the dipstick goes on the 125, there's just an oil filler plug on the 4 speed"

Hope that helps but Green's knowledge of seats, hubs etc. makes a persuasive case for this probably being a 3 speed.
Just being old doesn't make it a "Classic."

Aaaah! Nostalgia is not what it used to be!

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Iand
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Re: Bantam D10

Unread post by Iand » Sat Nov 19, 2011 1:56 am

Velton wrote:
Greenbat wrote:
Velton wrote:
Thanks Greeno.
I sought advice "over there" and Woodie said the 4 speeders engine numbers are D10A not just D10 - and D. Creped said
"What oil level indicator does it have? A dipstick as the original 125s had, indicates 3 speed, a 4 speed has an oil level screw in the cover quite close to the gear / kickstart levers. Where the dipstick goes on the 125, there's just an oil filler plug on the 4 speed"

Hope that helps but Green's knowledge of seats, hubs etc. makes a persuasive case for this probably being a 3 speed.



Not sure I agree with that, my D10 has a filler plug and a screw by the gear lever and it's a D10 3 speed.
1960 lambretta Li125 sold; 2001 Honda CG125 sold; 2006 Yamaha FZ6 sold; 1980 Kawasaki Z500 sold; 1967 BSA Bantam D10; 2008 Aprilia Shiver sold; 2010 KTM Duke 690R; 1954 BSA Bantam; 1980ish Kawasaki Z200

Buckinghamshire, UK

Velton
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Re: Bantam D10

Unread post by Velton » Sat Nov 19, 2011 2:28 am

Oh heck!

I was hoping to clarify the issue of whether this is a 3 or 4 speed bike - but only seem to have muddied the waters comprehensively!

Bugger! :oops:
Just being old doesn't make it a "Classic."

Aaaah! Nostalgia is not what it used to be!

impstan
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Re: Bantam D10

Unread post by impstan » Sat Nov 19, 2011 11:02 am

but seats, hubs etc make no difference as i said it has had another engine.

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Greenbat
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Re: Bantam D10

Unread post by Greenbat » Sat Nov 19, 2011 4:17 pm

impstan wrote:but seats, hubs etc make no difference as i said it has had another engine.


When you get chance, post the engine number-just the first bit and any letters on the end (if any)

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Hooli
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Re: Bantam D10

Unread post by Hooli » Sat Nov 19, 2011 5:40 pm

Greenbat wrote:
impstan wrote:but seats, hubs etc make no difference as i said it has had another engine.


When you get chance, post the engine number-just the first bit and any letters on the end (if any)



If he doesn't, we will as it seems Mrs Hooli wants to relive learning to ride & we're collecting it next saturday.
Classics ain't built in Metric

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jimmy
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Re: Bantam D10

Unread post by jimmy » Sat Nov 19, 2011 6:30 pm

Hooli
Sold out to the 2 smoke devil have we mate

heres a link that may help

http://bantam.150m.com/history/index.html

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Hooli
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Re: Bantam D10

Unread post by Hooli » Sat Nov 19, 2011 6:33 pm

Ack it's nae me laddie. T'is Mrs Hooli who wants & has paid for the blooming chooken.
Classics ain't built in Metric

Velton
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Re: Bantam D10

Unread post by Velton » Sat Nov 19, 2011 7:58 pm

Whatever else you do or don't do.......
Make sure that the crankshaft oil seals are renewed.

(I would change the bearings as well as the seals if it were my bike.)

You can pad the crankshaft with a sheet of aluminium either side and crankcases as well - we used a "horse-shoe" from George Todd on the D7; smoothing out the ports was done before the later barrel was fitted so don't know how much difference it made.
D14 barrel, piston exhaust and George Todd head along with a bigger carb - might have been inch and a sixteenth I think - made it go a damn sight better than BSA ever expected.

4 speed box would be a great improvement!
Just being old doesn't make it a "Classic."

Aaaah! Nostalgia is not what it used to be!

Velton
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Joined: Fri Feb 20, 2009 1:51 am
Location: London, England

Re: Bantam D10

Unread post by Velton » Sun Nov 20, 2011 1:33 am

http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... 4074wt_835

For Hooli! 8-)

you've got me looking at Bantams again, you swine! :lol: :oops: :lol:
Just being old doesn't make it a "Classic."

Aaaah! Nostalgia is not what it used to be!

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