Leon Begeman's Diesel Harley

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oilburner
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Leon Begeman's Diesel Harley

Post by oilburner »

Again, my apologies if news of this bike has already been posted. I have a good memory but it's very short :(

Leon's blog completely details all aspects of his 1992 Harley FLHS powered by a 31.5 hp turbocharged 1.2 litre Kubota D1105T. The fuel mileage is disappointing - 45 mpg US. If I calculated correctly the bike actually requires 19hp to pull it along at 64 mph, or else there is something amiss with the engine or gearing.

Image

Be sure to check the archives as well as his main blog web page:

http://harleydiesel.blogspot.com/


Avery
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Stuart
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Post by Stuart »

Well spotted that man :D As you can imagine I do a bit of trawlng on this subject and I think it's the first I've heard about this particular machine.
I'll get it added when I've a spare moment.
Stuart. M1030M1, Honda NC700S, Grom!, Toyota Corolla 1.4 Turbo Diesel. Favouring MPG over MPH.
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balboa_71
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Harley fuel mileage

Post by balboa_71 »

I'd like to say something about the 45mpg fuel mileage reported. A big Harley, heavy, and driven in some fashions will only return 30 (maybe less) mpg. I know this because I've owned much smaller bikes (read heavy) that could only do 35mpg, running a 650cc engine, and on good gasoline. Our gasoline now is terrible!!!! Mileage will only get worse for Harley riders. So, assuming the bike in question was getting somewhere between 30 and 35 mpg, on gas, getting 45 mpg on diesel is a bonus, at least from my standpoint. Motorcycles (big heavy ones) are piss poor when it comes to fuel mileage.

On another note, regarding my Jetta TDI (diesel):
I just drove 1,600 miles up into the Rocky Mountains from down here in Texas. It took 4 days to complete the trip, and I did it in a fully loaded Jetta TDI, 2006 model. I averaged 43 to 50 mpg, and 1/3 third of those miles were spent at or above 4,000 feet; some of those miles took me to 9,500 feet. If I had been on a Harley, I would have used twice the fuel (gasoline for the Harley), when compared to my Jetta. This, of course is assuming the Harley was loaded with 2 people and some luggage. My Jetta was loaded with 2 adults, and 150lbs of luggage. I ran 40psi in the tires, spent most of my highway times at 60 to 80 mph. In the mountains, speed was reduced to 25 mph, and the DSG tranny was manually shifted. I even ran up to Raton pass at 80 mph in 5th gear to clear the 7.8k+ elevation, to see if the little engine would complain.

http://en.wikipedia.org/wiki/Raton_Pass ... c_Landmark


To my surprise, there were no issues, just good running. Fuel costs were
$3.39 a gallon so I spent close to $120 for the diesel fuel to do the trip. I'd do it again, as I know I'm getting the biggest bang for the buck.


Cris
1980 GS850 converted to 10hp diesel clone power.
2006 Jetta TDI for road work.
2007 Bonneville
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Diesel Dave
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Jetta TDI

Post by Diesel Dave »

Chris, I was momentarily supprised by your figures until I remembered that US gallons are smaller than imperial ones

Many years ago I did a trip through france with a buddy following the Tour De France cycle race. We were very short of cash but we did have his aged Citroen AX diesel.

Driving very carefully in this tiny car we managed nearly 400 miles on each 30 litre tankful despite carrying 2 bikes in a tailgate carrier.

I worked it out at 75 mpg at the time.

Camping at the side of the road and surviving on dried pasta and freebee coffee and cheese from the handout caravan that preceedes the riders each day we had a grand time.

Fond memories.

As a comparison had I done your journey on old Sluggy....

40.5 litres of fuel, and that's about 80 bucks at the current UK pump price for diesel fuel.

Of course it would have taken 3 months and no passengers included.

But i would have had a good tale to tell at the end of it all.

Dave
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Jetta TDI

Post by Diesel Dave »

Chris, I was momentarily supprised by your figures until I remembered that US gallons are smaller than imperial ones

Many years ago I did a trip through france with a buddy following the Tour De France cycle race. We were very short of cash but we did have his aged Citroen AX diesel.

Driving very carefully in this tiny car we managed nearly 400 miles on each 30 litre tankful despite carrying 2 bikes in a tailgate carrier.

I worked it out at 75 mpg at the time.

Camping at the side of the road and surviving on dried pasta and freebee coffee and cheese from the handout caravan that preceedes the riders each day we had a grand time.

Fond memories.

As a comparison had I done your journey on old Sluggy....

40.5 litres of fuel, and that's about 80 bucks at the current UK pump price for diesel fuel.

Of course it would have taken 3 months and no passengers included.

But i would have had a good tale to tell at the end of it all.

Dave
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