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Andy M View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Andy M Quote  Post ReplyReply Direct Link To This Post Posted: 16 Sep 2022 at 10:46
Originally posted by Guzzi1000SE Guzzi1000SE wrote:

I seem to remember reading somewhere that the rear cyclinder is designed to run hotter.


You recall correctly. It's in the realms of mechanical minutiae though, you don't see Harleys in good fettle with any ill effects unless you run your 1910 model on the original oil beyond the service intervals or in Death Valley. Our own V-Twins will run marginally hotter on one cylinder just because the first to fire pulses mixture in the second. If you want less of even that you have to do what Douglas did and the Bavarians copied, a 179 degree cylinder spacing and two throw crank. You can also change one bore size and then chase your tail sorting out the resulting vibration and increased numbers of components. To me there is nothing wrong with a Harley engine except they won't mount them in Vincent style frames.

The journalists get confused by the marketing. The cruiser market is big and Guzzi, Honda etc. have had success in it. The Harley-Davidson market is smaller and is people who want Harleys for the image and lifestyle stuff as much as the bike. H-D are in both markets. Saying you are going to compete with H-D is like saying you'll compete with Honda but not saying if you're making a car, a bike, a robot or a generator set. 

IIRC the Florida was killed off at one of the emissions gateway points. If it couldn't meet the regs or just didn't sell you'd need to ask someone at Moto Guzzi. 

Andy 
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Tony G View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tony G Quote  Post ReplyReply Direct Link To This Post Posted: 16 Sep 2022 at 14:10
Thanks Brian and Andy M.
 Tony
I'll get their soon
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Brian UK View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Brian UK Quote  Post ReplyReply Direct Link To This Post Posted: 16 Sep 2022 at 14:59
Originally posted by Andy M Andy M wrote:

To me there is nothing wrong with a Harley engine except they won't mount them in Vincent style frames.
Many years ago, when the fashion was to put engines into the Norton Featherbed frame, I was told you couldn't fit a Harley engine into the Featherbed, but you could fit the Featherbed into the Harley engine if you fed it in sideways.

Brian.

Better 5 minutes late in this world than years early in the next.
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AdrianW View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote AdrianW Quote  Post ReplyReply Direct Link To This Post Posted: 17 Sep 2022 at 17:48
>>I seem to remember reading somewhere that the rear cyclinder is designed to run hotter. <<

My Buell XB9S has a thumping great fan behind the rear cyclinder that comes on if the bike gets too warm (or sometimes when you park it up..) controlled by a sensor somewhere..
Mind you that motor has been breathed on more than a little (by Harley standards) and the frame wraps around it so the cylinders don't benefiit from a passing breeze...  !!

Guzzi had a better idea, stick 'em out in the wind....

Cheers,
Adrian
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Speciality Quote  Post ReplyReply Direct Link To This Post Posted: 17 Sep 2022 at 17:58
Modern big Indians cut one cylinder when warm and stationary. Presumably they go from sounding cool to sounding like a dumper truckā€¦.
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Tony G View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Tony G Quote  Post ReplyReply Direct Link To This Post Posted: 18 Sep 2022 at 09:59
That makes sense AndyW A faf on but I'm surprised HD don't do the same.

That's interesting Speciality, I'm looking forward to seeing my mate with his modern Indian. I'll be asking how his Thumber is doing
I'll get their soon
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Andy M View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Andy M Quote  Post ReplyReply Direct Link To This Post Posted: 18 Sep 2022 at 14:52
Cutting to one cylinder is going to do wonders on an emissions test, I'm surprised VW didn't think of it.

I'd really like to test these, pull the fan fuse on the Buell or pack one cylinder on a Guzzi with a close fitting cowl. Hot air rises and pulls in cool air. It's how stationary engines work. All those pumps and cement mixers don't have such trouble. This makes me wonder if fans etc. were a marketing department thing?

Andy 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote BondEquipe Quote  Post ReplyReply Direct Link To This Post Posted: 18 Sep 2022 at 15:16
Originally posted by Brian UK Brian UK wrote:

Many years ago, when the fashion was to put engines into the Norton Featherbed frame, I was told you couldn't fit a Harley engine into the Featherbed, but you could fit the Featherbed into the Harley engine if you fed it in sideways.

I'd best tell my mate that as he has a Harley engined Featherbed!
Stephen
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