Gas Mileage - Again - Kawasaki KLR 650 Forum
2008+ KLR650 Wrenching & Mod Questions For repair, maintaining or modifying discussions related to the newly updated 2008 and beyond, Generation 2 KLR650 Motorcycle.

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 31 Old 04-11-2013, 12:04 AM Thread Starter
2nd Gear
 
Join Date: Oct 2012
Location: Silver City, NM
Posts: 217
Gas Mileage - Again

I guess I'm close to obsessing on this but after a lot of reading I don't see any threads quite like what I need.

When I got my '11 KLR last October the 1st few tankfuls gave me right at 50 mpg in all kinds of riding - mostly mixed street and highway.

I then installed the JD Jetting kit and followed their directions for the 6,000 ft elevation I live at. The bike has noticeably more power and seems a little smoother but now I get huge mileage swings.

I 1st emailed JD about it and they confirmed I'd done it right. A couple of weeks later I called them and talked to a different guy and he agreed with the 1st.

I'm running the 160 main with red needle in 2nd from top groove and the slide drilled.

The reason I'm beating my head against the wall is that when I rode to Benson, AZ a few weeks ago I went 55 - 60 for the 1st 50 miles (speed limit) and then 75 - 80 on I-10 for the final 100 miles to Benson. It gave me 40 mpg. That ride goes more or less steadily downhill from 6,000 ft to about 2,500 ft.

On the way home I held speed to ~65 mph and it gave me 44 mpg.

What's really got me going is that I've made 2 local loop trips lately - the 1st was 55 - 60 mph for about 20 miles, then 20 - 45 for about 35 miles and 20 - 40 mph on the homeward leg. On that trip it gave me 59 mpg.

Last week I made a loop the other way - went out Hwy 152 to the Mimbres turn-off but instead of going left, I turned right toward City of Rocks. That one I ran about 40 miles at ~45 - 55 till I hit Hwy 180, then booted it up to the 65 speed limit for about 10 miles and 55 for the final 10 miles home. That ride gave me 57 mpg on a total run of 81 miles. Average speed was quite a bit higher than on the 1st run. Seems like 60 mph is the change-over point where it starts drinking lots more fuel.

I fully realize and understand that more speed (power) is going to drink more gas........but nearly 30% more with only about a 10 mph speed difference ?? Almost 20 mpg difference ?? Just doesn't seem right to me.

What do you guys think ?? JD has been fair and patient with me but I hate to keep badgering them.

Thanks................Lar.
biglar is offline  
Sponsored Links
Advertisement
 
post #2 of 31 Old 04-11-2013, 05:16 AM
2nd Gear
 
Join Date: Aug 2012
Location: Eastern Alberta
Posts: 216
Motorcycles especially KLR style bikes do not have very good aero efficiency. Short length, big frontal area, bumpy sides, rider sticking up in the wind, no boat tail streamling etc

Power (fuel) to overcome aero loads goes up exponentially as speed increases.

i.e. a KLR doesn't use 50% of it's power to get to 50mph then 50% more to get to 100mph in a linear fashion.

My mileage changes a lot between cruise at 50mph and cruise at 80mph.

I have JD's jet kit too so if it ever stops snowing here so I can take some tank and a half rides I'll note the mpg and let you know.
Slowpoke is offline  
post #3 of 31 Old 04-11-2013, 05:44 AM
Lifetime Member
 
flash's Avatar
 
Join Date: May 2008
Location: North Texas
Posts: 1,534
Send a message via Yahoo to flash
Too many variables to consider besides speed.

Bike set up. Side bags/cases, top case, loaded/unloaded, windshield stock/aftermarket, tire type/pressure.

Environment. Temp/humidity, uphill/downhill/grade, road surface/smooth/rough/gravel/dirt/rocky, wind direction/speed.

Fuel. Octane rating/ethanol/non-ethanol/percent of ethanol/water contamination/accuracy of pump.

Were you consistent filling up at a certain mileage/running to reserve/mileage by stock odo or gps? Filling up and checking in short bursts will give a lot of variation.

What is your overall mpg by adding it all up over a longer period?

Gray-haired riders don’t get that way from pure luck.

Unknown
flash is offline  
 
post #4 of 31 Old 04-11-2013, 09:30 AM
4th Gear
 
Join Date: Oct 2006
Location: Pefferlaw,Ontario
Posts: 1,636
From what I can figure, you are getting some great mileages from your bike...imho. I can't say anything except do a tank full and then state what the overall distance is rather than these short rides as others have suggested also. I have only ever go 50 plus miles per gal when I first got my 04 before tinkering with it.....now I'm always below the 50 mark......I get anywhere from 40-50 over a tank full depending upon if I ride it at the speed limit and consciously think about trying to get 50 without camping equipment etc....or fully loaded on an adventure. The just normally riding around without thinking about it.....but I'm far beyond a stock bike.......seriuosly it's not worth worrying that much about......you are getting great mileages IMHO.

I have heard of some getting some how the 60 number, but I just don't see how...they must be trailering them....lol.

Willys
willys is offline  
post #5 of 31 Old 04-11-2013, 09:41 AM
Pretty in Pink, dunno why
 
Tom Schmitz's Avatar
 
Join Date: Feb 2009
Location: Redondo Beach
Posts: 7,456
Garage
I agree with flash. Here's a chart of my mpg over the last 11,000 miles.



T

Tom [email protected]

“Neither of the two people in the room paid any attention to the way I came in, although only one of them was dead.” -Philip Marlowe

“'Why' and 'How' are words so important they cannot be too often used.” -Napoleon Bonaparte


Sting like a butterfly.
Tom Schmitz is offline  
post #6 of 31 Old 04-11-2013, 01:46 PM
Moderator
 
CheapBassTurd's Avatar
 
Join Date: May 2009
Location: Indiana/ Michigan line at the Lake
Posts: 1,585
I'm nearly 50 mpg every tank.
Stock modified (no jet kit) carb.
Did the .22, 150 main, stock low,
and the screw is out almost 2 turns.

Whether beating or babying it, on road
gets 50 mpg per tank. That is combining a
few 90 mph runs along with lazy 45mph country cruising.

It gets a little thirsty offroading which is totally
expected never getting above 2nd gear for any
length of time.

Just an average rider's results on a very common setup.

Have fun no matter how and where ya ride,
Cheeeeeeeeeeeeeeeeeeeeeap

This is my son, with whom I am well pleased." ----God
CheapBassTurd is offline  
post #7 of 31 Old 04-24-2013, 10:32 PM
1st Gear
 
Join Date: Apr 2013
Posts: 34
Going to put my first tank of fuel back in my bike since I have owned it. Wondering what fuel mileage I got also. Hope over 40 but we will see. That KLR has to haul around alot of weight with me behind the bars... lol...
lacofdfireman is offline  
post #8 of 31 Old 04-24-2013, 10:46 PM Thread Starter
2nd Gear
 
Join Date: Oct 2012
Location: Silver City, NM
Posts: 217
Quote:
Originally Posted by CheapBassTurd View Post
I'm nearly 50 mpg every tank.
Stock modified (no jet kit) carb.
Did the .22, 150 main, stock low,
and the screw is out almost 2 turns.


Cheeeeeeeeeeeeeeeeeeeeeap
I hate to say this, but I may just backtrack, eat that fancy kit and try the .22 cent mod. I do have a 150 jet in the shop. I was getting a consistent 50 mpg before putting it in and now mileage varies all over the place - tho' I do hafta say the performance is better.

A few days ago I went part way around the City of Rocks loop to check out some stuff and on the way home I noticed the trip odo turning 200 miles - 20 miles from home.

If I've been getting 40 mpg with this tank full, just normal varied riding around town and local highways, then I'd be about out of gas. If I've been getting 50, then no sweat. A while ago I made a dip stick out of ¼" dowel, so stopped in Bayard to dip the tank. 6" of gas showing on the stick, so I was relieved - esp when I realized I'd left my wallet at home..................Lar.
biglar is offline  
post #9 of 31 Old 04-25-2013, 12:33 AM
5th Gear
 
Join Date: Oct 2011
Location: Lac La Biche Alberta Canada
Posts: 3,205
Hi Lar!
Keep in mind that JD does not use the same numbering system on their jets that Kawasaki uses. Is the spare 150 you have a JD or Kawi jet?
Just a heads up!
Regards....justjeff

It's not a Tractor....It's a LOCOMOTIVE!! Chugga Chugga
Woooo WOOOOO!!!!!
justjeff is offline  
post #10 of 31 Old 04-25-2013, 08:23 AM
4th Gear
 
Join Date: Oct 2006
Location: Pefferlaw,Ontario
Posts: 1,636
If it's a KLX kit just swap out that 150 and go down to a 145 and move the clip on the needle to the 3rd position, turn the pilot jet to 2 1/8 turns out and see what you get. IF it's a DJ kit, sorry I don't know anything about their numbers. BUT, the KLX kits are completely adjustable and 99% of use know about those settings better than DJ kits. Sorry.
The other thing would be to lower the needle if it is adjustable which I think it is on clip and see what happens? Did the kit come with multiple jets numbers? If so, drop the main down one size before moving the needle clip.

If you do take the kit out, sell it on Fleabay, someone will snap it up. Then go get the KLX kit......which should unless you have engine mods like me get you the 50MPG back again. I run in the mid 40's even with the larger FCR flatslide carb.

Hope this helps.......

Sorry just reread the first post....sell it off....start again.....

Willys
willys is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Kawasaki KLR 650 Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Gas Mileage planalp KLR & Other Motorcycle Related Discussion 21 01-06-2015 12:33 AM
Gas Mileage (Moved) Savage 2008+ KLR650 Wrenching & Mod Questions 74 05-24-2012 09:46 PM
Gas mileage awarren 2008+ KLR650 Wrenching & Mod Questions 8 07-07-2011 05:33 AM
Gas Mileage Report Hardyreels KLR & Other Motorcycle Related Discussion 13 10-27-2009 02:13 PM
About Gas Mileage Hardyreels 1987 to 2007 Wrenching & Mods 2 12-29-2008 10:45 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome