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post #1 of 62 Old Sep 8th, 2006, 11:03 pm Thread Starter
 
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This mpg thing?

Ok i've searched, I've learked, and I still cannot figure out how in the world a bike as big as the k1200lt can get the low 40's to the occasional 50 miles per gallon. I had a 2003 honda spirit 750, weigh around 560, not the tad over 800 of the k1200, and 50 mpg was a near un-breakable barrier. Only on occasion when I was just puttin around. I am a cruiser type in my riding style, speed limit plus 5 is normal. How in the world can this 800 lb 1200 cc bike match a 500 lb. 750.

Just asking, not questioning any ones statement.
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post #2 of 62 Old Sep 8th, 2006, 11:18 pm
 
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I'm guessing that your '03 Honda was carbureted. The LT is fuel-injected. Your Honda was a fuel-wasting pig. The LT is semi-fuel efficient. The scary part is, the LT could even be better with better fuel mapping.
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post #3 of 62 Old Sep 8th, 2006, 11:27 pm Thread Starter
 
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you do have that part right, v twin with two carbs, just didn't know it made that much difference. Course their was that time my 13 year old was helping change the air filter to K&N. it was dusk, put a rag in the air inlet to keep it clean. oiled the K&N slapped it together and sucked a wash rag down the front carb. $300 later it actually ran better than new. Still only got mid to upper 40's
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post #4 of 62 Old Sep 9th, 2006, 7:27 am
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Wink

I don't understand it either - however - I get a solid 45 - 48 mpg in combination riding. Just got consistent 53 -56 mpg on a 1500 mile ride in Canada.
My friend with his Ultra was amazed as I was consistently putting over a gallon less fuel---or 5 litres in at gas stops. Of course he probably shouldn't have said, before we left, "I hope we aren't going to have to stop and gas that pig up every 150 miles because my bike gets REALLY good mileage..."

Brian Heller
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post #5 of 62 Old Sep 9th, 2006, 8:16 am
 
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At least HD is finally getting smarter. By '07, ALL of their bikes are EFI. Their carb'ed bikes were fairly inefficient, especially once aftermarket pipes were installed...UNLESS the carbs were rejetted and synced properly. But there's a lot of hacks out there.

When I bought by Ninja ZX-11, I was getting around 30mpg. After installing a Flo-Commander and rejetting and syncing the carbs, I consistantly got over 40 mpg.
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post #6 of 62 Old Sep 9th, 2006, 8:24 am
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I am pretty amazed by the mpg I am getting with my LT. When I bought it it was showing 36mpg on the computer screen and I was a bit disheartened because I was getting in the high 40's with my R1150RT. I have put over 1500 miles on the LT since I bought it used and I am getting 49-53 consistently and most of that is city driving. I took a ride down I-25 and got 56 with the wind tailing me. My HD friends rave about their 150 mile range and I only smile.
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post #7 of 62 Old Sep 9th, 2006, 8:57 am
 
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Question

Quote:
Originally Posted by messenger13
At least HD is finally getting smarter. By '07, ALL of their bikes are EFI. Their carb'ed bikes were fairly inefficient, especially once aftermarket pipes were installed...UNLESS the carbs were rejetted and synced properly. But there's a lot of hacks out there.

When I bought by Ninja ZX-11, I was getting around 30mpg. After installing a Flo-Commander and rejetting and syncing the carbs, I consistantly got over 40 mpg.
Hey Joe,how do you sync the one and only carb on a Harley?
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post #8 of 62 Old Sep 9th, 2006, 10:15 am
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Quote:
Originally Posted by CaptRich
Hey Joe,how do you sync the one and only carb on a Harley?
Joe allow me>
By matching the cam lift and duration to the carb and exhaust.
Not just bolting on a bigger carb., that just causes a flat spot in the power band until the engine develops enough draw.
Rock
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post #9 of 62 Old Sep 9th, 2006, 11:08 am
 
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Carb Sync

I got it Rock.I think of syncing in terms of two or more carbs.The real HD idiots were the ones that would slap on straight pipes without re-jetting and wonder why they lost 10-15% of there power.Gotta keep air and fuel intake balanced with exhaust gas outflow.
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post #10 of 62 Old Sep 9th, 2006, 11:25 am
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You all are making me jealous. I just went on a trip up to Dallas and am only getting 35 mpg at 79mph. I only get around 42 in town. I have asked the dealer to check it and they said all the computer stuff looked good. My 05 consistantly got 53 in town and 48 highway. Any ideas?

Jerry
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post #11 of 62 Old Sep 9th, 2006, 11:55 am
 
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Mpg

Wow,how'd you get such good mpg on your 05?I get 40-43 running 2-up with luggage at 80-85,and I thought that was good.Mine also 05 with 10K miles.
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post #12 of 62 Old Sep 9th, 2006, 12:56 pm
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Riding style makes a huge difference here. My average over 86K miles is consistently 40 mpg. I can get around 50 if I take off more gently and stick closer to posted limits. My high is 56 mpg at last year's CCR (max 50 mph through the park) and low is 25 mpg for extended full throttle runs (Autobahn or track day).

It's all in the right wrist.

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Some people see the gas tank as half empty. Some see it as half full. All I care is that I know where the next tankful is coming from...
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post #13 of 62 Old Sep 9th, 2006, 1:39 pm
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Also watch where you get your information an imperial gallon (the measurement used in Canada and Britain) is about 20% larger than that used in the U.S., so the variances in milage will often depend on whether you are reading an American, British or Canadian test. Ron
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post #14 of 62 Old Sep 9th, 2006, 5:50 pm
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I was wondering the same. The 3 times I filled it up, I averaged 48, 52, and 45 miles per gallon, and I'm just over 210 miles for today's ride and have about 1/4 tank left. Not complaining of course, just amazed!

My ZX11 got as high as 336 miles on a tank once before going on reserve, and I got about 52 mpg that day, but it was riding with a bunch of slower riders riding from Phoenix to Kit Peak and back, averaging about 70 mph. It did get about 45 mpg average for me, better than any other bike I owned except the 50cc.

Current rides:
2003 BMW 1200 LT (bought in 2006)

Past rides:
97 Kawasaki ZX11(bought new in 1997, sadly sold in September 2014)
89 Honda Hurricane (sold)
88 Honda Hurricane (traded on an SUV)
86 Kawasaki 1000R (stolen but recovered)
84 Honda 750F (traded on 1000R)
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post #15 of 62 Old Sep 9th, 2006, 5:59 pm
 
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Quote:
Originally Posted by hagar
My ZX11 got as high as 336 miles on a tank once before going on reserve, and I got about 52 mpg that day...
That must be a typo, because the ZX-11 has a 5.3 gal tank w/o reserve. That would mean that you got 63.4mpg!!! On a ZX-11...ain't going to happen at a 70mph average speed. More like 40mph average, maybe.
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post #16 of 62 Old Sep 9th, 2006, 7:16 pm
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Joe, it's a long time ago, and maybe it was at 336 miles when I filled up, not when it went on reserve. It has a 6.3 gallon tank, and I know I got way over 50 mpg on that trip.

Current rides:
2003 BMW 1200 LT (bought in 2006)

Past rides:
97 Kawasaki ZX11(bought new in 1997, sadly sold in September 2014)
89 Honda Hurricane (sold)
88 Honda Hurricane (traded on an SUV)
86 Kawasaki 1000R (stolen but recovered)
84 Honda 750F (traded on 1000R)
81 Suzuki GSX1100 (sold)
78 Suzuki GS750 (traded on GSX1100)
74 Yamaha RD50 (sold)
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post #17 of 62 Old Sep 9th, 2006, 7:20 pm
 
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Quote:
Originally Posted by hagar
Joe, it's a long time ago, and maybe it was at 336 miles when I filled up, not when it went on reserve. It has a 6.3 gallon tank, and I know I got way over 50 mpg on that trip.
53.3, that's more like it. I could get that on my '98 D6 if I was riding with cruisers or LTs too.
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post #18 of 62 Old Sep 9th, 2006, 11:54 pm Thread Starter
 
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still amazes me. Here I was concerned I might not be able to commute with it. 65 mile a day round trip commute, might even make going to work something to look forward to, naaah
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post #19 of 62 Old Sep 11th, 2006, 1:47 pm
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Captrich wrote:
"Wow,how'd you get such good mpg on your 05?I get 40-43 running 2-up with luggage at 80-85,and I thought that was good.Mine also 05 with 10K miles."

Meese Wrote:
"Riding style makes a huge difference here. My average over 86K miles is consistently 40 mpg. I can get around 50 if I take off more gently and stick closer to posted limits. My high is 56 mpg at last year's CCR (max 50 mph through the park) and low is 25 mpg for extended full throttle runs (Autobahn or track day).

It's all in the right wrist."


I always run the route the same way: Set cruise right at 79mph, take the same roads and use the same gas stations. In my 05 I consistantly got 53 mph, but this 06 was running 33 to 35 mph. I had the dealership run a check on the computer (suspected an o2 sensor was off), but they say everything is fine. Could there be anything they have missed, cause I can't believe a loss of 35% fuel economy is normal.

Jerry
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post #20 of 62 Old Sep 11th, 2006, 2:40 pm
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I consider myself lucky if I get 200 miles on a tankful in city/suburb riding! That is at close to see level.

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post #21 of 62 Old Sep 11th, 2006, 4:01 pm
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Quote:
Originally Posted by Lonewuff
My 05 consistantly got 53 in town and 48 highway. Any ideas?
How many miles on the new bike?

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post #22 of 62 Old Sep 11th, 2006, 4:22 pm
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Quote:
Originally Posted by dronning
How many miles on the new bike?

Dave


Just under 6K

Jerry
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post #23 of 62 Old Sep 11th, 2006, 6:18 pm
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You all are making me jealous. I just went on a trip up to Dallas and am only getting 35 mpg at 79mph. I only get around 42 in town. I have asked the dealer to check it and they said all the computer stuff looked good. My 05 consistantly got 53 in town and 48 highway. Any ideas?
__________________
Jerry

Had similar issues mid summer. Was only getting 35/38 mpg no matter how i rode the bike & mileage loss was after doing my 24K service during the winter.
** had disconnected the battery & when done doing the service, hooked it back up & went riding ....

WRONG thing to do !!! .... Bike ran fine, but was a tad rich by looking at the pipe outlet.

.... Went back a few months ago, pulled the fuse for the motronic unit and left it alone for @ 2 hours. Then plug fuse back in (Same as disconnecting battery) and switched on ignition, but DID NOT start ... rolled throttle from idle to full @ 3 times to give the motronic unit throttle end points & reset the calibration

Sense doing that my mileage has been NO LOWER than 43 and has averaged @ 48 !!

that just maybe your trouble too ?

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post #24 of 62 Old Sep 11th, 2006, 8:07 pm
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Thanks Scott,

I will give it a try, actually I have it scheduled for 6K (me and tools like water & oil and everything you said was Greek to me ) and adding several lights to the front end next week, so will ask the tech to try it.

Jerry
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post #25 of 62 Old Sep 12th, 2006, 10:03 am
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Drag!

Being in a country that calculates distance travelled for fuel used as litres/100Km, I had to work out what my gas "mileage" is as you guys do. At and average of 5,6 litres per 100Km work out at a paltry 42mpg. How can this be? I ride basically conservatively to get what I thought was good gas mileage only to see that there are others who get way more! I've put it down to drag caused mainly by the screen. Mostly in the up position, one must expect to pay for "comfort". I'm going to try the next tank of fuel with my Vstream at lowest position and see what kind of difference it makes.

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post #26 of 62 Old Sep 12th, 2006, 10:12 am
 
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At and average of 5,6 litres per 100Km work out at a paltry 42mpg. How can this be? I ride basically conservatively to get what I thought was good gas mileage only to see that there are others who get way more!
Most of the better milagesx you see are coming from one of two types of people. Either they live at very high altitudes, or they ride their LTs EXTREMELY slowly. You would be amazed at what mileage you would get if you rode your LT at 5K' above sea level, or higher.
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post #27 of 62 Old Sep 12th, 2006, 10:46 am
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Just a wunder'in

Have put 800 miles in the last few weeks on a 2000 LTC with 18K when I bought it a couple of weeks ago. I took my first 350+ mile trip last week and clocked 49 mpg on the trip computer and 50.5 by the odometer and gals. at the pump.

I've read some of the posts about the inaccurate speedometer and have seen about a 6-7 mph (10% minus) error at 65 mph according to the portable radar signs.

Isn't the speedometer/odometer synch'd and if there is a speed error there will also be a mileage error?

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post #28 of 62 Old Sep 12th, 2006, 10:54 am
 
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Isn't the speedometer/odometer synch'd and if there is a speed error there will also be a mileage error?
I have been told be the gurus that the speedo and the odometer are not sync'ed. But the odometer is still off, just by a smaller margin. Much smaller.

Once I performed the speedo correction mod, my odometer was still off according to my GPS.
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post #29 of 62 Old Sep 12th, 2006, 11:30 am
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Altitude can make a difference. In the mountains of New Mexico I got over 60 mpg while running about 85 with some other LT's. My normal pace around Kansas only gets 60 once in a while.
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post #30 of 62 Old Sep 12th, 2006, 11:32 am
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Averaging 49.4 mpg since topping off 2/23. Yes, riding style, load, and speeds all very much factor into each individual's "range". Looking back, '97 Road King (carbureted Evo, stock) 40.63 mpg over 15k miles, '91 CB750 45.88 mpg over 6k miles, '01 Road Glide (FI w/Stage 1 breather kit & pipes) 43.13 mpg over 18.5k miles, '93 GSX1100G 37.95 mpg over 4k miles. And the winner is...'04 Titan Silver LT. FYI...check out this FAQ to dial in your BC's estimated MPG:

http://www.bmwlt.com/forums/faq.php?...lt_faq_bcreset
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post #31 of 62 Old Sep 12th, 2006, 12:43 pm
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I consistently get 48-52 mpg driving to and from work and around town at speeds under 70. At highway speeds (80-85) I get about 42-44. I don't know what kind of Harley you were riding with, but all the people on Harley's I've ridden with stop every 100 miles. Even Gold Wings don't usually get over 35 on the open road. By the way anyone who would call the beautifully streamlined K1200LT a "PIG" must be a knucklehead! pun intended.

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post #32 of 62 Old Sep 12th, 2006, 1:12 pm
 
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Just to add a data point... I recorded fuel/miles for over 3,500 miles of combined commuting, errands, day rides, and two 1K mile tours. Average is 48.7 on my 2001 KLT.

My 1984 Harley FXR(T) gets just about the same mileage despite several mods including a Mikuni HSR42 carb and 2" drag pipes with ThunderMonster baffles.

So I'd say that just about any properly tuned bike in the 1100cc/1340cc range should be able to do as well...

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post #33 of 62 Old Sep 12th, 2006, 1:33 pm
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mileage

I have a 2000 LT, and I am averaging right around 48 mpg since purchasing it last November, and putting approximately 10000 miles on it. My speedometer is almost right on the money at 60 mph, so I think I am one of the lucky ones. My computer is about 2 mpg lower than my actual mpg. I am in Indiana (so no altitude), and I generally don't drive over 65 for any long distances--although I do ride the Interstate occasionally. I have a 1997 Ultra Classic, and it gets 43-46 mpg with the same type of riding. I have been on trips with a buddy who has a 2004 Road King, and over the same distance, his bike is within 2 mpg of my LT. Just thought I would weigh in. jrlakin
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post #34 of 62 Old Sep 12th, 2006, 11:25 pm
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post #35 of 62 Old Sep 13th, 2006, 1:01 am
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Quote:
Originally Posted by PMitchell
Isn't the speedometer/odometer synch'd and if there is a speed error there will also be a mileage error?
The speedo and odo use the same input (rear wheel ABS sensor ring) but calculate their values differently. I did a 100 mile test up an interstate checking mileage marker posts, and the odo read 103.3 miles. Much better than the speedo error, but after calibrating the speedo mine's always within 1 mph of true speed (based on GPS and various radar "Your Speed Is . . ." signs).

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Some people see the gas tank as half empty. Some see it as half full. All I care is that I know where the next tankful is coming from...
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post #36 of 62 Old Sep 13th, 2006, 1:39 am
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post #37 of 62 Old Sep 13th, 2006, 6:55 am
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Quote:
Originally Posted by Lonewuff
Captrich wrote:


I always run the route the same way: Set cruise right at 79mph, take the same roads and use the same gas stations. In my 05 I consistantly got 53 mph, but this 06 was running 33 to 35 mph. I had the dealership run a check on the computer (suspected an o2 sensor was off), but they say everything is fine. Could there be anything they have missed, cause I can't believe a loss of 35% fuel economy is normal.

The primary and initial sensor for Motronic management functions, is the water temp sensor located on the back of the engine in / on the water jacket at the head side. You can see it with a flashlight w/o removing anything. Checking it and replacing it are another matter and requires a GT1 hook up and laser heat gun for detection of actual heat compared to what the sensor reads. If this sensor is off or bad, it will cause the engine to run rich. O2 sensor, air box remp sensor all play a roll, but come into play with the h2o sensor after it has made it's calculation IIRC.

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post #38 of 62 Old Sep 13th, 2006, 9:44 am
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The LT average is a bit better than the K-R even with the 350# weight savings. Style and wind resistance the most likely culprits.

Without deliberately trying to get better mileage....i.e. low on fuel and need to stretch for a fuel stop, or at higher altitudes.....both of them almost always get between 31 and 38 mpg.

For me, the most important thing about these bikes is that when I fill them up I smile ear-to-ear every time. The whole time I'm watching the pump, I can't help but have the thought
that riding is the most fun at the lowest cost I can think of ... well, except for a weekend with my Daisy and without the kids .

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post #39 of 62 Old Sep 15th, 2006, 8:28 am
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So Ken, if on the early bikes, ABSII, shouldn't the speedo and odometer have issues if the ABS cable is broke or are there more than two wires in that harness??

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post #40 of 62 Old Sep 15th, 2006, 1:00 pm
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Quote:
Originally Posted by Steve_R
So Ken, if on the early bikes, ABSII, shouldn't the speedo and odometer have issues if the ABS cable is broke or are there more than two wires in that harness??
Not sure, Steve. I believe the '99-'01 bikes had separate sensors for speed and ABS. So one break shouldn't affect the other function. I also believe those wires were routed differently, so that the rubbing problem isn't nearly as likely on the earlier bikes.

Ken
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post #41 of 62 Old Jul 13th, 2007, 6:13 pm
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Quote:
Originally Posted by messenger13
I have been told be the gurus that the speedo and the odometer are not sync'ed. But the odometer is still off, just by a smaller margin. Much smaller.

Once I performed the speedo correction mod, my odometer was still off according to my GPS.
Where do I find information on correcting the speedometer? I think mine reads close to 10% high.

Also, I came across this message while searching for how the trip computer MPG is reset correctly. When I reset mine by holding the button, it goes to 36 MPG rather than 0. Sometimes it will flash a lower number, 16 I think, but as soon as I release the button it goes back to 36. What gives?

Voyager

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post #42 of 62 Old Jul 13th, 2007, 6:50 pm
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Both my old K11 and my K12 seem to have a high error on the speedo; that is evident when I use the Garmin speedo to validate speed (a measurement that has a .2 mph error rate as far as I can tell from the various webboards).

I did a 2400 mile trip from Seattle to El Paso, and while I lost some data, the actual mpg was significantly lower than that indicated on the screen. Nonetheless, it was above 40 mpg.
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post #43 of 62 Old Jul 13th, 2007, 7:03 pm
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I finished a Saddle Sore 1000 a few weeks back and averaged 47.2 MPG. I think my speed average was just shy of 76 MPH. I usually get in the low 50MPG when daily commuting. If you are having mileage probs try using your cruise control as often and for as long as you can

Tim Reed
02 Toscana Green "The Toad"
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post #44 of 62 Old Jul 13th, 2007, 10:37 pm
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Quote:
Originally Posted by treed
I finished a Saddle Sore 1000 a few weeks back and averaged 47.2 MPG. I think my speed average was just shy of 76 MPH. I usually get in the low 50MPG when daily commuting. If you are having mileage probs try using your cruise control as often and for as long as you can
Tim,
Something's not right: how do you get low 50MPG (that's somewhere between 50-55MPG, right?) on a daily commute, if you only got 47.2MPG on a relatively steady 1000 mi ride?

I use my 2005 LT for daily commute in stop-and-go traffic (side streets, with a 4-5 blocks between traffic lights, that are not synchronized). My speed is somewhere between 40-50 mph (according to the inaccurate speedo), and I usually average 35 MPG over the week. I score higher (42-45MPG) on weekends on long, 300-400 mi rides at steady speeds.

Steve
Granada Hills CA
2005 K1200LT Dark Graphite Metallic
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post #45 of 62 Old Jul 14th, 2007, 7:12 am
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Slower usually results in better mileage as long as the slower doesn't result in a lot of stop and go riding. My Voyager would get 46-48 on the interstate at 65-70, but when riding on the back roads at 50-55 on our fall "leaf ride" my wife and I would often get 52+ MPG. Also, I got better mileage with the Voyager riding two-up than I did solo. I was never 100% sure why, but I think the passenger smooths the airflow around the trunk so it doesn't act like an air brake.

I'm only on my 4th tank with my LT so I don't have a good feel for mileage yet. The computer seems to read way high. It said 45 and 46 MPG for my first two tanks and they both computed to 39, which was disappointing, but I realize it is still breaking in. The third tank also reported 46 MPG on the computer and calculated to 46.7 which is much better. My wife and I took a back road jaunt with a group recently and the computer was reporting 50-51 for the 165 miles we traveled (1/2 tank). I then rode to work solo at 55 MPH and the computer has dropped to 49. I'm curious to see what it really is when I fill the tank again.

The Kawasaki was one of the best carbureted machines I've ever owned and consistently returned near 50 MPG for a long-term average. I certainly hope the Beemer with its fancy fuel injection, etc., will do at least as well given the almost identical engine sizes and machine weights.

Voyager
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post #46 of 62 Old Jul 14th, 2007, 8:47 am
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Wing

Friends on Wings which are technologically advanced bikes like the LT are getting in the low to mid 30s. I run a consistant 48-53 mpg. Makes little sense but I like not thinking about gassing up till around the 300 mile mark on my 99.
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post #47 of 62 Old Jul 14th, 2007, 10:54 am
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Well, the 1800 does have 50% more engine than the LT and a fair bit more weight and frontal area for drag. I'm not too surprised that it gets less, but low 30s does sound pretty horrendous. I'd like to get at least 45 commuting with my LT and I'm hoping for 50 on the road. If it matches my Voyager, I'll be a happy camper.

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post #48 of 62 Old Jul 14th, 2007, 11:07 am
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Keep the speed down

Quote:
Originally Posted by Voyager
I'd like to get at least 45 commuting with my LT and I'm hoping for 50 on the road. If it matches my Voyager, I'll be a happy camper. Voyager
Unless there is some other problem working, speed is the factor for me. I don't get any better than 39-40MPG on my commutes and I'm riding close to 80MPH most of the time. I hit some stop and go at the halfway point on the way home in the evening. I've been able to increase a little if I lane split to avoid stopping during those periods. Not an option for most. I'm sure I could get the mid 40 to 50MPG numbers if I slowed down and ran closer to 65MPH.

Dan
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post #49 of 62 Old Jul 14th, 2007, 11:19 am
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My commutes are in the 55-60 MPH range with little if any stop and go. The ss1000 had us really pushing the throttle harder than I ever do commuting. When I'm trying to get the best mileage I admit to being a bit of a granny

Tim Reed
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post #50 of 62 Old Jul 15th, 2007, 8:00 am
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On my 2005 if I take it easy on the throttle {mostly while two up with the SO} 60-65 cruise controled highway and nice and easy 4 to 4.5k shifts in town I can get around 53 mpg combined. IF on the other hand I am riding solo at a very rapid rate on the highway and more spirited in town my mileage drops to about 42 mpg.
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