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Topics - cdsdorset

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Singles / B40 kickstart ratchet Bush.
« on: 24 January, 2022, 21:01:30 »
Does anyone know if the kickstart rachet Bush should end flush with the mainshaft splines. I have a Bush of the correct length but it sits a mm or so proud of the splines?

Singles / B40 head gaskets
« on: 10 December, 2021, 14:16:24 »
Working on a B40 ss90. Need to fit a new head gasket. Have ordered a new lipped type but the hole location/sizes seem to be off. After "easing" the holes the main cylinder hold doesn't appear big enough to drop down over the cylinder lip.
Has anyone else had this problem?

Twins / Primary drive alignment
« on: 24 November, 2021, 17:40:58 »
Bit of an oddity. Working on an A65 (appears to be 1969 cases). Normally would check clutch /crank sprocket and add shims to crank sprocket if needed. This one the crank sprocket is actually proud of the clutch. Not much but a few thousand.
Anyone  had this before? Could it be mismatched year parts iecrank/sprocket spacer

Singles / B31 gearbox bearing clearances
« on: 19 June, 2021, 00:06:05 »
Can anyone tell me if the two gearbox bearings are supposed to be c3 clearance or cn?

Singles / B31 gearbox overhaul
« on: 08 June, 2021, 12:39:03 »
Does anyone have a name of someone they can recommend for a plunger gearbox overhaul.

Bantam / D1 frame
« on: 21 January, 2021, 10:17:18 »
I have been asked to enquire.
Anyone with a D1 is the frame top tube totally straight or does it have a slightly dip?
The frame in question has a slight dip in the top tube but no apparent corresponding obvious make/kinks anywhere else to suggest that the frame has been bent at anytime.

Bantam / convert D7 from wipac to standard coil ignition
« on: 01 November, 2020, 19:09:04 »
I am working on a D7 with a wipac generator , 3 coils plus ignition coil. It has one light switch in the headlamp. It is very unpredictable to start. It has had a new internal igniton coil and i am struggling to get the timimg anywhere near so would like to convert to normal coil ignition.
Can someone tell me if i can convert it to run a normal coil under the seat etc.

Singles / 46-48 B31 rear light
« on: 22 July, 2019, 21:53:41 »
Could anyone post some pics of the correct rear light for a 46-48 b31 and how it is fitted.
Many thanks

Singles / Saddles on Rigid B31
« on: 18 June, 2019, 08:07:01 »
Could someone with a rigid B31 post some pictures of their saddles.
I need to have a look at the size of the saddle and how it fits /relative to the springs etc.
Thanks in advance.

Singles / C15 primary chain adjuster
« on: 10 March, 2019, 15:17:26 »
Does anyone have a primary chain adjuster lying around that they dont want?
Doesn't have to be perfect, I just need it to try out an idea I have , as long as the main mounting plate is ok.

Singles / Early rigid B31 chainguard
« on: 03 February, 2019, 13:15:41 »
Does anyone have a chainguard for a 46-48 rigid B31 they would like to part with?

Singles / 46 B31 gearbox swap
« on: 19 July, 2018, 12:51:16 »
Could anyone help me out with info regarding swapping from the early 46-48 gearbox to the later box.
Can it be done by just swapping to the later gearbox mounting plates and fitting the later box or is the easiest way to machine the mountings on the later gearbox and use the original mounting plates.
Any help would be appreciated or even just some links to useful info.
Thanks in advance.

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