10 hours ago, Damrongsak said:

I think you've been cheated. Board track racing, I can't imagine what it is like when it's slick.  I'd imagine that a seat position above the rear wheel would keep one on his toes ....

There's a seat?  I thought he was sitting on the wheel.  Brings a whole new meaning to getting skid marks out of your pants.

15 hours ago, Damrongsak said:

Ah, you guys and your fancy old bike pics.  This is what it was all about.  ( JS Sykes and W Pinner at Wimbledon in 1931)  From:  http://www.vintagebike.co.uk/pictures/1931-speedway-at-wimbledon/#.XAb5ejFOmHs

 

 

Hail to the King:

 

I had the privilege of seeing him race at our local little stockcar/speedway track back in NZ in the '80s.  He didn't bring the gold bike, but still gave a hell of a ride in his late 40s, winning the NZ long track series 4 years in a row from 83 - 86.  Sadly, he passed away April this year, but was still riding a speedway bike at 72 years old.

 

 

Stunning 30's Sarolea 500 bevel drive .. 

30's OK Supreme with JAP engine and matching pud' basin helmet .. 

Ferrari ..

Not from the house of the Ferrari ( though there is one bike that does bear their badge that was commissioned by them and made by Magni .. I think ) Next to nothing info available about this one .. Looks late 40's'ish .. The engine looks an oddball .. the head top fins say 2 stroke but the lower ones and plug location say more 4 stroke .. the carb also looks too high mounted for a stroker .. And the exhaust also looks more 4 stroke so maybe its a s/v .. Check out the clock in the top of the tank .. 

Apparently Mahindra is resurrecting the Jawa brand in India to compete with Royal Enfield and Harley Davidson.

Might be fun...

9 hours ago, Justgrazing said:

Motosacoche 500 .. Look at the petrol tank on it .. 

Yeah, lovely colour.

All those 30-50's singles with dual pushrod tubes looked much of a muchness.

But very very pretty muchness.

From Triumph Tiger 70/80/90's to AJS/Matchless to Ariel Red Hunters to Norton ES2's. All wonderful.

BSA went with the alloy one piece exposed pushrod tunnel as different but equally attractive.

 

Re the Motosacoche - underneath that timing cover however, i'm pretty sure is a nasty, cheapo, slimy, horrible.......... chain & sprockets....

12 hours ago, canthai55 said:

TR6C campaigned 1969 / 70

Just look at the size of that f###ing rear sprocket!!!

CZ 500 V4 Early 60's 

Nougier 500/4 across frame late 50's .. Look how narrow and finely finned the barrel's are ..  

Moto Rumi across frame 4 banger 2 stroke .. Its said there's also a V4 with the two outer pots sat more upright and a 6 cyl across the frame but can't find any pics so far .. I'll bet it misfires in the wet looking at those plug caps though .. 

  A 1939 500cc Rudge  Ulster ,with a bronze cylinder head .

6 minutes ago, kickstart said:

  A 1939 500cc Rudge  Ulster ,with a bronze cylinder head .

The twin port c/head was quite common back then.

Bronze was quite common on the sportier models in a range.

What was NOT COMMON on this very reliable, very fast, expensive, beautifully put together motorcycle, was the fact that the OHV c/head was a radial 4 valver.

Ducati 125 4 banger .. Does run but was never raced .. No desmo vaive gear looking at slenderness of cam housings .. This bike is on display at the Morbidelli museum .. 

Another utterly barking 125 from same era the Honda 5 pot .. Bore 37 mm & Stroke of 25 mm tells you why like the 6 this won't idle either so is constantly blipped to 15000 rpm ..

Edit .. Check out the capacitors around the lower crank cover on the Duke inside I suspect is a set of points for each cylinder .. 

 

Oldie's tank art .. 

1924 McEvoy Anzani 1000 competion bike nicknamed " Black Beauty " .. 

My chum in England imported this from the USA, has a 2.0 litre lump...

 

Bit of Brit' Tank art with some engine chucked in and one more gorgeous Motosacoche tank .. 

Uhhh I don’t get it........ didn’t post complete customization was 

worried what the repercussion would be from you shaking your head....

 

Not my choice but if they like it they like....Good on them! 

Triumph 1000 4 banger named Quadrant though don't know if that was official and I don't know overly too much on it so its over to resident Brit' iron specialist Guzz' on that .. Even now 45 yrs on that is one good looking machine that could cut it alongside modern kit .. Oh what might have been .. 

5 hours ago, Justgrazing said:

Triumph 1000 4 banger named Quadrant though don't know if that was official and I don't know overly too much on it so its over to resident Brit' iron specialist Guzz' on that .. Even now 45 yrs on that is one good looking machine that could cut it alongside modern kit .. Oh what might have been .. 

Not sure if it ever ran JG.

Will have to check my books sometime.

I know only one was ever made.

I have a fine line artist drawing of this bike in pencil format on large thick art paper poster.

The triple engines were reknowned as difficult to machine & manufacture, 5 vertical gasket faces from left to right, all jigs & fixtures etc etc.

The Quadrant more of the same, except even wider cases, wider crank, and another cylinder. Prolly a recipe for disaster unfortunately.

But yeah a handsome machine for sure.

Another one that never made it, the Triumph Bandit /BSA Fury, DOHC 350cc.

Who had the brainwave of putting the kickstart on the left-hand side, like the MZ 250?

Quote Bike magazine MZ 250 test, I got on the bike, then had to get off the bike to start it, so use to a left-hand side kickstart.

Another one for Guzzi ,in the last days of Triumph Doud Hele designed, built a prototype? modular bike?, the idea was a 250cc single pot engine,(I think it was a 250) that could be made into a 500cc and a 750cc by linking them together, idea was to keep costs down by using one modular, maybe  not one of his better ideas, cannot find anything on the web about it.

justgrazing , A look at Wilkie the Triumph Quadrant was basically a Trident engine  with another cylinder welded on and machined, but with the drivetrain etc it made a lopsided engine, must admit it is a nice looking bike, would be  even nicer with a fishtail exhaust.  

Not a motorcycle, but the 71 series Detroit Diesel was a 2-stroke modular engine, each cylinder having 71 in^3 disp.

1, 2, 3, 4 & 6 cylinder inline models and 6, 8, 12, 16 & 24 cylinder V-models.

The 16 was pretty popular in long-haul trucks back in the day. You tell what was coming from a mile away...

Cheer's Guzz' and Kickstart for the heads up on the Quadrant .. Yeah I've read up on it abit and the general feeling does seem to be it was a bit of a lash up that wasted resources that could've been better used for a bigger version of the 3 .. But others take the view it was a worthwhile attempt to come up with something in the face of Japan big capacity metal .. Having read how it was achieved then yes probably it would have been difficult to manufacture the engine but nonetheless it all looks right and though it does sit off centre of the frame abit who doesn't dress a little bit to the right .. 

Another for you chaps .. Is the V6 an official Trumpet lump or one that has been handcrafted though I can't find any news that A Millyard might've been behind it as this is his speciality .. 

46 minutes ago, mogandave said:

Not a motorcycle, but the 71 series Detroit Diesel was a 2-stroke modular engine, each cylinder having 71 in^3 disp.

1, 2, 3, 4 & 6 cylinder inline models and 6, 8, 12, 16 & 24 cylinder V-models.

The 16 was pretty popular in long-haul trucks back in the day. You tell what was coming from a mile away...

Yes I am acquainted with the D D 2 Stroker .. They were fitted in UK Bedford trucks 70's/80's but were never liked on the UK truck scene as they had to be revved to do anything and were not considered to have very good fuel consumption but for sure there was not mistaking one if you heard it coming .. 

Considering most other sickles of the day were fire once every lampost singles or Vee twins the rasping Scott must've been the nearest you could get to a 'eadbanger 2 stroke .. 

Yes I am acquainted with the D D 2 Stroker .. They were fitted in UK Bedford trucks 70's/80's but were never liked on the UK truck scene as they had to be revved to do anything and were not considered to have very good fuel consumption but for sure there was not mistaking one if you heard it coming .. 

Pass anything but a truck stop...

They sucked the fuel, but they were cheap to buy and cheap and easy to maintain. Cheap parts everywhere..

Also popular in boats and equipment because they would run clockwise or counter clockwise, just change the fuel and oil pumps and reconfigure the starter...

Yes I am acquainted with the D D 2 Stroker .. They were fitted in UK Bedford trucks 70's/80's but were never liked on the UK truck scene as they had to be revved to do anything and were not considered to have very good fuel consumption but for sure there was not mistaking one if you heard it coming .. 

Pass anything but a truck stop...

They sucked the fuel, but they were cheap to buy and cheap and easy to maintain. Cheap parts everywhere..

Also popular in boats and equipment because they would run clockwise or counter clockwise, just change the fuel and oil pumps and reconfigure the starter...

12 hours ago, Justgrazing said:

Another for you chaps .. Is the V6 an official Trumpet lump or one that has been handcrafted though I can't find any news that A Millyard might've been behind it as this is his speciality .. 

Shed built. Thankfully.

13 hours ago, kickstart said:

Another one that never made it, the Triumph Bandit /BSA Fury, DOHC 350cc.

Who had the brainwave of putting the kickstart on the left-hand side, like the MZ 250?

Quote Bike magazine MZ 250 test, I got on the bike, then had to get off the bike to start it, so use to a left-hand side kickstart.

Yeah, 'kin horrific was'nt it.

Lets just admit that generally, us British were pretty crap at anything OHC or let alone DOHC on a motorcycle engine back then...... sidevalves, pushrods, OHV, fine........

13 hours ago, kickstart said:

Another one for Guzzi ,in the last days of Triumph Doud Hele designed, built a prototype? modular bike?, the idea was a 250cc single pot engine,(I think it was a 250) that could be made into a 500cc and a 750cc by linking them together, idea was to keep costs down by using one modular, maybe  not one of his better ideas, cannot find anything on the web about it. 

Doug Hele and another giant of the British Industry, his boss at the time, Bert Hopwood, came up with the clever modular idea in the mid 60's actually, when the industry still had clout, was a thriving business rather than a money loser,  and outsold EVERY OTHER MANUFACTURER AND COUNTRY COMBINED by a country mile.

 

I digress, probably the best book to read about the rise and fall of the British motorcycle industry is by the great Bert Hopwood (designed BSA A7 &A10's as well as the first Norton twins), funnily enough, entitled "Whatever happened to the British motorcycle industry?".

Read it and weep.

13 hours ago, Justgrazing said:

Yes I am acquainted with the D D 2 Stroker .. They were fitted in UK Bedford trucks 70's/80's but were never liked on the UK truck scene as they had to be revved to do anything and were not considered to have very good fuel consumption but for sure there was not mistaking one if you heard it coming .. 

 

13 hours ago, mogandave said:

 

Pass anything but a truck stop...

They sucked the fuel, but they were cheap to buy and cheap and easy to maintain. Cheap parts everywhere..

Also popular in boats and equipment because they would run clockwise or counter clockwise, just change the fuel and oil pumps and reconfigure the starter...

 

One of the most common fitments in UK was to the Terex scapers, mostly 8V71's, and when I first joined the oil patch they were the most commonly used engine in the desert sows, early ones had 8V71's but they soon switched to 12V71's...and as you have mentioned they were easy to maintain and had a good amount of power. The engine of choice now is the Cat 3408 and it's offshoots.

 

 

 

Foden were another Brit' truck maker who dabbled with the 2 stroke dieseler ( Commer were another in the 60's though with lighter trucks ) in big trucks but by the time I started work most were getting consigned to the scrappers .. and like the 6 banger Detroit 2S engine tried in Bedford TM's used to make a most unearthly sound especially at high revs .. German truck maker MAN haven't given up on the idea and continue development using the latest electronics , turbo's and by all accounts a supercharged version to control emissions and Yamaha haven't given up on 2 stroke bike engines using a Gurtner carb' and electronics for emissions control .. 

Foden S21 stroker-smoker diesel .. You just don't see 'em like that anymore .. New trucks like new cars all look samey samey now .. 

Brit' truck industry went same way as the Bike and Car industry when you look back at some of those lost Scammell , Guy , Thorneycroft amongst many .. Here endeth history lesson on trucks though I did keep it within the curve of bikes with the nifty mention of Yamaha ..

 

How neat is that .. MZ 350 flat twin stroker .. A lot prettier than the later stuff too .. 

8 minutes ago, Justgrazing said:

How neat is that .. MZ 350 flat twin stroker .. A lot prettier than the later stuff too .. 

Looks good! Didn’t know about this MZ, only knew the twostroke singles (based on DKW’s, ar fas as I know). By the way, MZ did quite well in racing too, with their screaming 125 and 250.

1 hour ago, damascase said:

Looks good! Didn’t know about this MZ, only knew the twostroke singles (based on DKW’s, ar fas as I know). By the way, MZ did quite well in racing too, with their screaming 125 and 250.

Like Great Britain , Germany had quite a vibrant bike industry both pre and post war but like Britain a lot went bust down the years .. 

Wacky DKW arse about face supercharged 2 stroke twin done long before Yamaha and their reverse cylinder set-up .. 

6 hours ago, thaiguzzi said:

Lets just admit that generally, us British were pretty crap at anything OHC or let alone DOHC on a motorcycle engine back then......

Struggled abit with car lumps too ( aside the mighty XK Jag 6 cyl ) the Lotus twin cam of the 60's ( Lotus Cortina ) and later Ford double knocker ( Mk1 RS1600 ) were both high maintenance and the Ford in particular suffered oil leaks and heavy consumption that required removal to sort out .. And the 2.2 DOHC that went in the late 70's Lotus Sunbeam was renowned for valves kissing pistons at high revs so that weren't much better .. No surprise coming from Italy that the Fiat twin cam of the 60's on and available in numerous capacities became a sort out engine to be fitted in Fords for those who wanted the twin cam look and howl of the Ford lump but without having to take the head off once a month to rebuild it .. And the Fiat had a far better 5 speed box to go with it .. Unlike the sh*tty 4 speed cast iron Ford job ( quick shift or not t'was sh*t ) ..