31
British Bikes / Re: Ariel VG 1950
« on: August 20, 2023, 08:25:27 AM »
Stick an Amal Premier on it if you want to ride it.
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32
British Bikes / Re: Troubleshooting a JAP Special
« on: August 19, 2023, 09:21:11 AM »No difference. Whatever is preventing the tickler working correctly is still evading me. Next attempt will mean going into the float bowl itself and seeing there's something odd about the interface between the tickler and the float. I've been doing some reading up and it seems that the new nylon floats sometimes cause minor problems so it's worth taking a look.
I seem to recall that the tickler on Monoblocs can be "adjusted" slightly by tapping the central tube down or up in the carb body. Maybe the current position is too high for juice to appear at the tickler before it drips from the carb itself?
Or maybe I'm thinking of another carb...
33
Japanese Bikes / Re: Motorcycle Oddity
« on: July 30, 2023, 06:31:52 PM »
So did you find out what it was?
34
Japanese Bikes / Re: Registering a bike as a classic
« on: July 30, 2023, 06:31:01 PM »
You need to take the V5C to a Post Office which does vehicle tax. I don't think you can change from Untaxed to Historic yourself.
35
British Bikes / Re: triumph 3T engine
« on: July 30, 2023, 09:27:03 AM »
Unit 500 with ally barrels? Sure it's not silver paint?
I don't think I've ever seen ally barrels for the smaller unit engines.
I don't think I've ever seen ally barrels for the smaller unit engines.
36
British Bikes / Re: triumph 3T engine
« on: July 29, 2023, 09:23:09 AM »
3T and 3TA are very different engines.
3T crankcases differ from the 500s and 650s, and the instant way to tell is the position of the PRV. On the smaller 3T's it's on the timing cover, on the larger engines it's on the front of the crankcase.
Unit engines (3TA and 5TA) use the same crankcases, but the 3TA usually has stamped steel con-rods rather than the 500's alloy jobs. Although some mugs say it's possible to ream out the steel con-rods to fit the larger gudgeon-pinned 500 pistons, I wouldn't do it for the longevity of the engine.
The unit 350 block is different to 500's, and can't be bored out to take the larger pistons.
3T crankcases differ from the 500s and 650s, and the instant way to tell is the position of the PRV. On the smaller 3T's it's on the timing cover, on the larger engines it's on the front of the crankcase.
Unit engines (3TA and 5TA) use the same crankcases, but the 3TA usually has stamped steel con-rods rather than the 500's alloy jobs. Although some mugs say it's possible to ream out the steel con-rods to fit the larger gudgeon-pinned 500 pistons, I wouldn't do it for the longevity of the engine.
The unit 350 block is different to 500's, and can't be bored out to take the larger pistons.
37
British Bikes / Re: vincent rapide on ebay
« on: July 27, 2023, 05:14:12 PM »
Don't know why he would expect to get 100k for this bike, when he probably wouldn't get anywhere near £40k here.
Prices are dropping across the board, and Vins are no exception.
Prices are dropping across the board, and Vins are no exception.
38
British Bikes / Re: Australian-made motorcycles in the 1950s - help please
« on: July 23, 2023, 09:25:24 PM »
Mobylettes were also built under licence by Raleigh for a while.
Vile things.
The moped with the two-speed Villiers 3K engine (Philips, Norman etc) were far better.
Vile things.
The moped with the two-speed Villiers 3K engine (Philips, Norman etc) were far better.
39
British Bikes / Re: Australian-made motorcycles in the 1950s - help please
« on: July 01, 2023, 10:41:04 AM »
I could just imagine Breaker Morant riding across the Nullarbor Plain on that little feller... 
40
British Bikes / Re: Invincible JAP decals ?
« on: June 19, 2023, 09:10:30 AM »
Very Art Noveau.
Should be easy enough to get accurate replicas made.
Special builders in our club routinely get tank transfers etc made locally, some more complex than that one.
Should be easy enough to get accurate replicas made.
Special builders in our club routinely get tank transfers etc made locally, some more complex than that one.
41
British Bikes / Re: Triumph 650 twin unit gearbox outrigger bearing
« on: May 22, 2023, 09:09:01 AM »
How much stick would you have to give it to flex the mainshaft enough to cause gear-changing problems, especially as these engines have been used in all sorts of competition work for decades, and this mod isn't common or usual.
Sledge hammers and little tiny nuts?
Sledge hammers and little tiny nuts?
42
British Bikes / Re: Triumph 650 twin unit gearbox support bearing
« on: May 21, 2023, 12:30:20 PM »
Why would you do that?
43
British Bikes / Re: Spark, Bownian, Warrior, Torpedo... who made the frames?
« on: May 09, 2023, 09:59:41 AM »Not a make that gets much publicity, in the Anglais world anyway.
M-G weren't big exporters, and probably exported nothing at all to markets where British bikes were available.
I had a 1936 350 M-G, and the design was out-dated and the metallurgy pretty sh*tty for the era.
Not many survived Adolf's World Tour, and even less survived the post-war French "keep it going at all costs" concept.
44
British Bikes / Re: Spark, Bownian, Warrior, Torpedo... who made the frames?
« on: April 20, 2023, 05:49:07 PM »
There's a good chance that the items marked "Gosport" were actually made in the OEC factory prior to OEC becoming a maker in it's own right.
45
British Bikes / Re: Triumph crankcase engine stamping
« on: April 06, 2023, 10:51:45 PM »
Another query would be where in the world are you? I can only speak for the UK, and as Ian says above restamping can be problematic for many reasons.
That said, if your bike already has a V5C registration document I don't think a number-less crankcase is a problem, but maybe moreso if you're hoping to get it registered.
That said, if your bike already has a V5C registration document I don't think a number-less crankcase is a problem, but maybe moreso if you're hoping to get it registered.