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Messages - Rex

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British Bikes / Re: Coventry Eagle
« on: May 09, 2019, 09:31:58 AM »

British Bikes / Re: Coventry Eagle
« on: May 09, 2019, 09:31:25 AM »

British Bikes / Re: Coventry Eagle
« on: May 09, 2019, 09:30:49 AM »
A couple of pics

British Bikes / Coventry Eagle
« on: May 08, 2019, 06:37:35 PM »
There's a lot of knowledgeable blokes on here who know about pre-war Villiers-powered tiddlers, so anyone know about a Coventry Eagle "Super Sport" 1931 175c? Appears to be up-together and a runner, and although would probably struggle with the rice pudding skins it has a certain charm. Any thoughts?

British Bikes / Re: Gold Star Speedo drive gear
« on: May 08, 2019, 04:13:00 PM »
Here's a tip for the future....WD40 is a good spray-on lubricant but it's utter rubbish as a release oil ( I still use good old Plusgas) but no release oil would be effective in the oily environment of this speedo drive. ;)

British Bikes / Re: Excelsior Universal 125cc - Rear Plunger
« on: May 07, 2019, 09:30:57 AM »
Every version of a plunger unit I've had apart has the springs sitting above and below the axle slider casting, and the central pillar/tube is the same diameter over it's whole length.

British Bikes / Re: 66 Triumph T100
« on: May 01, 2019, 10:01:29 AM »
Nice bike, and given the brief description probably worth the money.
Worth checking to see if it's really a late  "SS" or an early "S". Different model and different value.

European and Other Bikes / Re: 1993 Ducati Superlight Charging Issue
« on: April 30, 2019, 03:06:34 PM »
I have no idea what a Ducati Superlight is, but I would put too high a charge voltage down to poor regulation rather than any sort of failing stator, but who knows what goes on with these new-fangled bikes? ;)

British Bikes / Re: Excelsior Universal 125cc - Rear Plunger
« on: April 30, 2019, 09:17:31 AM »
Click on the recipient's name and a profile comes up, then click on "send PM".  :)

British Bikes / Re: Excelsior Universal 125cc - Rear Plunger
« on: April 28, 2019, 03:56:48 PM »
I still wonder about the bloke with the French non-running moped.
(Well, all of them, actually)

British Bikes / Re: Correct Ignition Position
« on: April 26, 2019, 05:54:23 PM »

But normally it's best to time on full advance which is where the majority of the running is done. And I wouldn't necessarily agree that "the stop" will be full advance - different bikes have tight and slack wire advances, eg Nortons with the gear train timing gear had tight wire; when they reverted to each timing wheel driven direct from the crankshaft it became slack wire.

This is true, and both my old Enfields have slack wire advance while the Scott has tight wire, but the slotted "stop" (in the travel of the points back plate or cam rim ring in the mag) determines the fully advanced to fully retarded range of travel, and for this purpose whether it's tight wire or slack wire adv isn't relevant. I'm assuming the OP has already sussed which way is advanced and retarded in the magneto.

British Bikes / Re: Correct Ignition Position
« on: April 26, 2019, 10:02:49 AM »
Thank you for your reply Rex. I used the BSA Instruction Book for ignition setting, which is Piston at T.D.C Ignition fully retarded, Contact Breaker points open .003 inch.

If that's the case then clearly BSA expected the rider to set the timing lever in the optimum position when running. That being the case then maybe you're using it in the post-war way ie, just pull the lever around to the stop to set full advance, rather than just finding the best position when on the road?
Three thou seems very tight too?

British Bikes / Re: Stops When Hot
« on: April 25, 2019, 08:52:19 PM »
Vapour lock in the fuel line? Tufnol spacer between carb and head?

British Bikes / Re: Correct Ignition Position
« on: April 25, 2019, 08:50:39 PM »
 Usually when they're retarded the tick-over slows right down, the exhaust takes on a more "doff-doff-doff" note and they don't want to rev cleanly but if you've never had the timing correct then I don't know that you would be able to make a valid comparison.
You are setting the timing at full advance aren't you?

Used to do the Rallye Internationale at Luc sur Mer every year until health reasons stopped me for a couple of years. Always enjoyed it though.
Are all those Motobecanes etc painted dark brown and beige though? Always seems so.

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