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Mike Muir
Mike Muir
somewhere in the UK
Posts: 1,096
Joined: April 2004
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Triumph bulletin board
17 minutes ago
Hi,

Originally Posted by AngloBike
The VIP escorts are now done by the Special Escort Group.

Duh, my turn to slap my forehead! When I first moved to London, I used to go to the TOMCC 'branch' (West London?) run by Bill and Philippa Crosby (as in Reg Allen's). Another member was a serving Met motorcycle cop, who'd ridden Saints originally; he explained many information snippets, organised several trips to Met facilities like Hendon. Interesting times. smile

Regards,
16 399 Read More
Bsa bulletin board
57 minutes ago
Back in 1996 when I started BSA bulletin board & British motorcycle forum
The first bsa forum ever on internet not many people were connected.
A lot of the visitors were Americans not English.
In 1998 britbike.com was born and with that the possibility to create a lot more boards.
Bantams are big in Uk but never existed in Sweden where I live and not many went to us as far as I know.
I have asked before if we need more sub boards for example bsa but no demand so far .
Maybe a general board for two strokes is in demand if so let me know.
Feel free to invite owners to become members here.
I do want a bantam for me self.
3 115 Read More
The Rod and Tappet
1 hour ago
Bronson's Harley jumps well in the short film.
7 183 Read More
The Rod and Tappet
2 hours ago
Well, I coulda ridden to a BMW rally just 50 miles down the road and sweated all weekend in record heat. Instead I stayed home and went to this car show about a mile from my driveway.
I was the only bike there, but I got to park next to a very nice Aston Martin. Many nice cars, including an MGB with a Ford 289 enigine. That must be a lot of fun.
One of the Healey drivers told me about a British car meet in August. They'd like to see some British bikes show up too.
0 9 Read More
Hot links forum
2 hours ago
Thanks for the information. I wasn't too sure about that one.
2 75 Read More
Hot links forum
3 hours ago
0 7 Read More
Hot links forum
3 hours ago
0 7 Read More
Hot links forum
3 hours ago
I usually don't post these if they don't include pictures, BUT the temptation of a good collection of parts and tool weakend me.
Link
0 12 Read More
Bsa gold star forum
4 hours ago
Oh dear, have we shattered the myth of the individual engine test sheet? I would be happy if at least the max hp/rpm reading was correct.

Gordo
30 822 Read More
Bsa bulletin board
4 hours ago
I got what I think is a pretty loud and decent-sounding (i.e., not like a strangled duck) horn at a local bike shop for $12. I don't recall if there was a brand name on it; it was undoubtedly made in Asia somewhere. I did have to fab a better mounting bracket than the one that came with it, but that's ok, to be expected.

But I don't know what you consider loud. I've never had the stock horn working on either of my A65s, so I don't have a basis for comparison. I used squeeze-bulb horns for forty years, just to pass inspection, until I was finally shamed into installing an electric horn. Still I can yell louder than the horn (and more quickly too!).
2 45 Read More
Norton bulletin board
5 hours ago

I did make some progress with a wire brush and then a knife file and brush again after that... Still a heck of a long way to go.

Not fun.
11 261 Read More
Bsa gold star forum
6 hours ago
Nice job of logging your results.

I'm doing some tuning on a TR25 (BSA 250) for Bonneville on which I've just installed a TM34 mm Mikuni Flatslide. Yes, it's big, but I have my own inertia chassis dyno with Performance Trends Datamite hardware and software and I'm getting some very good results. But what I find, with a Megacycle X4 cam and porting along with RD springs, long intake manifold, and short exhaust straight pipe, I can get 12-13 AFR up to 1/2 throttle, and again at full throttle but only after about 6,000 rpm, as it goes rich from about 4,000 to 6,000 rpm. So I believe that due to reversion, AF ratios can change at different rpm, and it will be darn hard to get AFRs of anywhere close to 13 until the resonance of the intake and exhaust kicks in. Fortunately, I only have to pass thru that troublesome mid-range in 1st gear after which I can just keep the R's up as I'm only timed thru the 3rd mile.

So length and shape of exhaust and intake will influence the AFR more than one might expect.

Tom
250 10,992 Read More
Triumph bulletin board
7 hours ago
The service life of a selinium device was around 50-100k hours (viewed in industry generally).
The tell tale sign of failure was normally high forward volt drop leading to 'cooking'.
Reverse breakdown can follow quickly. Ask any old TV repair guy........... those stacks stink when they start to go.
I have never known a failed rectifier on one of these alternators to 'de-magnetise' the rotor though.
Once the reverse leakage gets high they normally just cook and go open circuit. They may heat the stator up a bit first.
The recovery time of a standard silicon power bridge is not normally taken into account until operating
frequency gets into the several khz range, well beyond that encountered on our old crates.
Recovery times are normally in the realms of sub millisecond fractions. High speed diodes are then deemed
necessary to overcome this, this can give rise to transients so 'soft recovery' types may be needed, etc etc etc.
Blimey this is getting out of hand, i'm going for a ride.
52 1,148 Read More
Norton bulletin board
7 hours ago
Originally Posted by limeyrider
I was hoping that, both lights and horn would work at neighbourhood speeds, when kids are running around, and automobile drivers need to see a bright light bearing down on them !.
.


For that to happen, you need to ride around in a lower gear - to keep the revs up and the alternator output higher. ?

Road tests of old used to quote that the battery input/output was balanced at speeds (usually) in the 30 to 35 mph range.
Although I don't know if this applies to your specific year/model/bike, adopting a 12v alternator improved things a little in this dept....
And alternator rotor magnetism fades over the years.....
6 88 Read More
British modified/specials
7 hours ago
Hi DMadigan,

Thanks for your answer!

Yes other people have told me the same since I posted. Water jet won't be accurate enough, especially for the interference fit for the steering stem.

It's ok though if I cannot hollow the underside.

There are drawbacks to reusing the cbr600 yokes. They're ugly, the steering stops won't work as well, the Honda steering stem is much larger than the triumph one which means making an adapter... And it says "Honda" on it! But maybe I'll change my mind once I see an estimate from the machine shop.

I'll do some research and post some updates.
2 112 Read More
Norton bulletin board
7 hours ago
Anyone know a source of mudguard bridges for long roadholder forks ?
Specifically for a Model 7, although the ES2 etc uses the same bridge,
just the holes are in different places, and bigger.

Commando and shortroadholder ones for featherbeds seem common enough,
but no-one supplies the long roadholder type ?

Long Roadholder and short roadholder types.
Not the Model 7 type though..

[Linked Image]
0 18 Read More
Bsa bulletin board
Yesterday at 11:26 PM
The old 'Colonial Bin' ploy, Australia got the same. Well it's 12,000 miles away, you'd have done the same thing. lol
15 278 Read More
Norton bulletin board
Yesterday at 11:13 PM
Originally Posted by gREgg-K
One word of caution when attempting to blow out the inner piston with compressed air: do not use your fingers to block the holes in the caliper bore, because when the piston pops out, it may well cut you ... or worse.
.. Gregg



Oh certainly. I put the piston hole down on a towel sitting on the bench and held my thumb over the inlet hole while airing through the bleed hole. Piece a cake.
Thanks,
Rob
2 73 Read More
Velocette forum
Yesterday at 10:58 PM
0 17 Read More
Garage sale - The private buy & sell board
Yesterday at 09:05 PM
Bare TR6 head, decent start, has a Pock Mark in the valve pocket. No broken fins $50 + shipping
0 37 Read More
Bsa bulletin board
Yesterday at 08:10 PM
The B44 big end is a roller type and low pressure, just a dribble of oil is enough to keep it happy. If there is no oil return or the sump is filling I would check the following:-
- ensure the oil return lines cross over when exiting the oil manifold, earlier non end fed engines had straight feed and return lines. This is vital to get right or else the oil feed from the tank will be supplying the return and vise-versa.
- check the tank outlet and pipes aren't blocked somehow, sometimes a return line oil filter causes problems.
- have a look at the rocker feed oil supply, maybe all the return flow is going there?
- check the pump mounting studs, sometimes pulled up metal in the cases distorts the pump mounting surface and causes leaks, countersink the stud holes as necessary
- the sump oil pickup tube can get loose in the cases, check and loctite as required
1 41 Read More
Triumph bulletin board
Yesterday at 06:59 PM
Not often mentioned here is that the steel plates can warp, especially if you blast them. I've seen them curl up like potato chips in the blast cabinet....
But even the slightest warp in them will cause problems. I inspect each and every one(or just buy new ones) by holding them up together to see if you can see any daylight between them. If so, in the can they go.
What happens is that they act like springs against the action of the clutch springs. So you get a clutch that both drags and slips.

Cheers,
Bill
34 1,034 Read More
Triumph bulletin board
Yesterday at 06:40 PM
Hi Norman,

Originally Posted by Norman Woollons
I have been going through the Triumph factory records to trace all the TR6P's which were made, between 1967 and 1978.

They were exported to around 60 countries, but whilst I have details for the UK forces, those supplied overseas are not recorded which departments they went to, just the dealer who accepted them.

There is a vast amount of information available including where special parts were added.

There's another recent Saint thread; any correction/clarification you can add?

Regards,
13 5,075 Read More
The Rod and Tappet
Yesterday at 06:39 PM
The British Army and Royal Navy used to function more than adequately whilst under the influence of alcohol, as did much of British industry.
13 446 Read More
Triumph bulletin board
Yesterday at 05:33 PM
Hugh- you probably enjoy arguments and rhetorical pontification more than I do.

Leaving the breather stub bare or fitting a short hose pointing down at the road works perfectly well, but it drips some oil onto the road and that went out of fashion, so they fitted all these hoses to the rear, sometimes branching to the oil tank.

Your theory about the breather hoovering up road grit is stupid.
17 413 Read More
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