It was tricky but even as he ran himself over with his Royal Enfield, Sgt Butterworth remembered his training and did not let go of the Maxim gun.
-
Enjoy XS650.com? Consider making a donation to help support the site.
XS650.com receives a small share of sales from some links on this page, but direct donations have a much greater impact on keeping this site going.
Interesting motorcycles, not XS650
- Thread starter Kevin Werner
- Start date
^^^Someone care to 'splain that motor to me?
Supercharged 2 stroke... 
Supercharged 2 stroke...
Simplifies bottom end design. Detroit diesel did a whole series of supercharged 2 stroke diesels, All based on a common piston dislacement. 53, 71 and 92 cubic inch piston/cylinder combos gave us 4/53, 6/71 8/71(?) 8 and 12 /92. Probably othersSupercharged 2 stroke...
Bike was made by Dennis Jones, a Rolls Royce engineer. Supercharged, 500cc, flat four, two stroke made for racing in the 40s. But never raced as supercharging was banned around the same time.
Jones made a number of specials apparently. This one had twin leading shoe brakes, front and rear also.
Jones made a number of specials apparently. This one had twin leading shoe brakes, front and rear also.
Last edited:
I built and rode these things for 20 odd years, would have loved to put an engine in one. How much fun would that be?
This was my final, sold it a few years ago. Found it impossible to get off the thing when stationary, the only way off for me was to slam the brakes on and let the momentum throw me forward and off, only trouble was, if you were going to fast you'd find yourself resting on your nose on the ground. Great fun though, riding it that is, resting on your nose wasn't much fun at all!
This was my final, sold it a few years ago. Found it impossible to get off the thing when stationary, the only way off for me was to slam the brakes on and let the momentum throw me forward and off, only trouble was, if you were going to fast you'd find yourself resting on your nose on the ground. Great fun though, riding it that is, resting on your nose wasn't much fun at all!
Attachments
And you left out a few there were 1-71's, 2-71's, 3-71's, 4-71's, the 6's came in inline and V configurations the 16V-71's. and I there were a few 24V-71's made The 92's also came in the 16V versions. Rebuilt several different models from the 4's up to a few 16V's. The 16V's were interesting as they were basically two 8V blocks bolted together front to front and cranks were joined as well. Timing gears up both ends. The 24 would have been more or less the same but using two 12V blocks and cranks.
The Detroit engines were basically the Lego blocks of the diesel engine world, you could make them what ever you needed and what ever size you needed if you could imagine it they could be built to do it.
I miss the sound that they made.
Says Mystery on the tank. But looks like a Kawasaki Z1 Turbo to me.
WHAT DID YOU SAY?
I SAID THERE'S NOTHIN' LIKE A 6-71 WITH A STRAIGHT PIPE!
RIGHT!
Best is to wind a 16V-71 out with nothing but exhaust manifolds on the exhaust side and nothing on the top of the blowers except for the shut-down housings and do it inside a one bay garage with overhead door down!
Those pipes!
