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Discussion Starter #1
Hopefully someone will have this info to share with me, and therefore others. :confused:

I have a Vulcan 700, the '85 version of the 750. Also have the Clymer service manual; no relevant info. :(

I need the Final Drive gear ratio; that is, how many turns of the drive shaft for each (1) revolution of the rear tire? I don't need the transmission gear ratios, though.

Thanks for any help, Folks.
 

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If your goal is to change ratios, the vn700 has a taller ratio, a little slower on takeoff, better fuel mileage with the 750 engine. No other ratios are available without having someone tool up and hob a set.
 

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Discussion Starter #3
Thanks Bob,

I bought this as a parts bike. Will remove the 700 motor and give it away (probably), in the near future.

My plan is to repower with a small Diesel engine. But I need the gear ratio to gather parts. May have to pull the engine first just get an actual number. Manufacturers don't like to give up this sort of info.
 

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diesel power is always cool. Biggest problem with diesel is the rpm limits. Unless you fashion some serious overdrive ratio it'll be unable on the open highway. Most engines govern out at 3k max, if you twist them any higher you seriously limit their longetivity.
I can see it now, a diesel powered bike with a 10 speed tranny.
 

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Kawasaki KLR 650-M1030M1, A Diesel To Die For!!!

OK, this should help with some info on diesels!


http://www.hdtusa.com/press.htm


NOTE: Due to increased production requirements for our military motorcycles, HDTUSA has had to delay production of our commercial models. We will update all of our potential civilian customers via our newsletter, so please sign up so we can provide you with the latest information.

CYCLE WORLD TESTS HDT DIESEL MOTOR
See the feature article here: www.cycleworld.com

HDT Racing USA will be at the 2008 BUB Motorcycle Speed Trails
at Bonneville Salt Flats.
Aug 31-Sept 5
We will to try and better our existing Land Speed Records. www.speedtrialsbybub.com.

Biofuel Diesel Motorcycle Wins
At Bonneville Speed Trials
as seen on Popular Mechanics website.
http://www.popularmechanics.com/automotive/new_cars/4229604.html


DIESEL MOTORCYCLES SET 8 WORLD RECORDS AT THE INTERNATIONAL SPEED TRIALS BY BUB AT BONNEVILLE SPEEDWAY SEPT. 5-9, 2005
HESPERIA, CA (Sept. 12, 2005) – Hayes Diversified Technologies (HDTUSA), the world’s first purpose-built production diesel motorcycle engine manufacturer, established 8 World (FIM) and 4 American Motorcycle Association (AMA) records at Henry Ford’s racecourse at Bonneville Speedway this past week. All records are “unofficial” until the AMA and FIM have certified them.

Gizmag - Australia, July 18, 2005
Diesel Power Military Motorcycles
The concept of a diesel motorcycle is not one that has occurred to a lot of people – at least not many have thought about it for long because despite a rich century of innovation in motorcycling, only a handful of diesel motorcycles have existed and until very recently, they have all been utility vehicles – bikes designed to get great economy on fuel of questionable quality in rugged and remote regions and said diesel two-wheelers had no performance pretensions.

Special Operations Technology - Online Edition, June 7, 2005
Everyone is in favor of small diesel engines for a
variety of SOF applications—is there a solution?
In the aftermath of Operation Desert Storm, military planners tackled the logistics nightmare of mixed ground, air and sea mobility platforms and support systems that mandated a numbing array of different fuel requirements across the battlefield.

News and Star UK - December 15, 2004
WORLD FIRST - A DIESEL MILITARY MOTORBIKE
BRITISH technology has helped produce the world’s first production diesel military motorbike. The 86 mph bike, already ordered by the US Marines, may be available for the consumer market in the future. The bike is the result of a technology partnership between Cranfield University in Oxfordshire and California-based Hayes Diversified Technologies (HDT).

Rubber Mag - November 4, 2004
First Diesel Military Motorcycle To Hit The Road
A unique technology partnership between Cranfield University and California-based Hayes Diversified Technologies (HDT) has created the world's first production diesel military motorbike and the first bike of any kind with a purpose-designed diesel power unit.

Machine Design - October, 2004
Diesel motorcycle sets speed record
A diesel-powered motorcycle built by Hayes Diversified Technologies Inc., Hesperia, Calif., and faculty from Cranfield University recently set a speed record for commercial diesel motorcycles. It hit 85.46 mph at sea level on hard pavement and with production gearing.

Hayes Diversified Technologies (HDTUSA) - September 13, 2004
Sets Two Land Speed Records for Diesel Motorcycles
at International Speed Trials
The World’s First Purpose-Built Production Diesel Motorcycles Wins Big at Henry Ford’s Speed Course at Bonneville Speedway . Hayes Diversified Technologies (HDTUSA), the world’s first purpose-built production diesel motorcycle engine manufacturer, set two land speed records at the International Motorcycle Speed Trials, (www.speedtrialsbybub.com) held at Bonneville, September 6-10, 2004.

Diesel Progress North American Edition - Sept, 2004
Lightweight vehicles go to war: ATVs, motorcycles and
battery-powered bicycles do their duty in Iraq, Afghanistan
The U.S. military is interested in lightweight vehicles that can reach places where larger Humvees and trucks can't go. These include utility vehicles, ATVs, motorcycles and even battery-powered bicycles. Some ultralight vehicles are already in use in Iraq and Afghanistan, offering mobility in remote and rugged locations. Here is a look at some equipment in active duty and under development by the military.

Hayes Diversified Technologies (HDTUSA) - August 2004
Creates the World’s First Purpose-Built Diesel Motorcycle Engine and Receives an Additional $3 Million in Funding
Hayes Diversified Technologies (HDTUSA), the world’s first production diesel motorcycle engine manufacturer, announced today that at the specific request of the Marine Corps, an additional $3 million was added to the current $2.2 million for the production of the M1030M1 JP8/Diesel Military Motorcycle. The additional funding is part of the 2005 Defense Appropriations Bill.

Daily Motorcycle News -Weblog, May 27, 2004
Civilian Version of Military KLR DIESEL Motorcycle
There are lots of good reasons to have a powerful motorcycle that can run diesel for the army, but that equally applies to civilian applications & use.Obviously, the cost of running a diesel motorcycle would be lower that a normal one, but more important, a civilian version of the Military spec Kawasaki KLR 650-M1030M1 would be great for all those adventurer riders, passing through countries were unleaded fuel is unheard off, and were you'd be lucky to have diesel fuel available.

Daily Motorcycle News -Weblog, July 26, 2003
Diesel Power Military Motorcycles
Almost always, the armies around the world try to keep their logistics simple. For their vehicles, this means that they standardize on one fuel only;- and that's diesel since all trucks and tanks require diesel. This means they'll only need to carry one fuel in to the battlefield. However, motorcycles have proven themselves over the last 100 years in battles, and they don't run diesel.

HDT-RMCS DIESEL MILITARY MOTORCYCLE - 2003
For Immediate Release - Diesel Press
The programme by the Royal Military College of Science [RMCS] and Hayes Diversified Technologies [HDT] to design and develop a diesel motorcycle was undertaken to meet the requirement for all NATO armed forces to operate their entire inventory of powered equipment on either diesel fuel or aviation kerosene.
That's all folks:cool:
 

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I don't think much else changed from the '85 700s to the '86 (and up) 750s, so this is taken from the Kaw factory Service Manual that I have that says it covers '85 - '01 models:

Final Drive System: Shaft drive
Reduction Ratio: 2.522 (15/22 x 37/10)
Overall drive ratio: 5.251 @ Top gear

and it also provides the Transmission gear ratios, but you said you didn't need that. Hope this helps...
 

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Discussion Starter #7
Looks Like Infinity has been thinking about diesel bikes, too. :)

Thanks, ForestLake

5.25 "rear end ratio" is what I was looking for. Direct drive a variable displacement hydraulic pump on a small diesel engine and drive the shaft with a hydraulic motor turning around 4000 rpm max. That would give a top speed of 70 mph +/- and really good mileage. Kinda like a Road Warrior bike ? :eek:
 

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Hi FLBear;
Sorry for such a long post about diesel. Yet I am glad to see the US Army using a Kawasaki in their adventures across the world. It takes a mean machine to pass the military standard testing. I've know for some time, as many have here, that diesels are slow on pick up. So, to see a diesel that has over come this, is a welcome site indeed. Years back they had an electric motorcycle (don't know who make it) that had a land speed record in the 0-60mph class.
Now if they can make a solar power motorcycle that can get a full charge in 20 minutes and go 0-60mph in record time with over 1000 mile on a single charge. Then we'd be talking some serious machine. Sure they laugh now. I believe in the future of mans wild and crazy ideas. Oh.....my bad, let us stick to our Vulcan's, crazy-land is in a different forum altogether.
Thank you
Ray
[email protected]
 

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thanks

Thank you, that really made my day.:) Do you think diesel will ever catch on big. Just think of the range WOW like 300 to 400 miles per tank:eek:. Great site, pass on more if you find them.:D
Thanks
Ray
[email protected]
 
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