How many gallons till the reserve - Kawasaki KLR 650 Forum
1987 to 2007 Wrenching & Mods For maintaining, repair or modifications of Generation 1 KLR's. 2007 and earlier.

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post #1 of 17 Old 05-06-2015, 11:09 AM Thread Starter
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How many gallons till the reserve

Fairly simple lets say you just flipped it to reserve and stopped at the first gas station you see (less than 5 miles) how many gallons does it take to fill up.

For me, ive only used the reserve 2 times, both times at 146 miles on the OD, and both times I put in 3.4 gallons.

From what I understand, most people put in about 4.3 when they reach the reserve.

Is this just my bike or are there others like this, and then what gives. Is something not screwed down all the way in the tank?

I believe my mpg is fair, as I am 300 lbs 6' 6" and really enjoy the throttle. But the tank capacity just seems off.
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post #2 of 17 Old 05-06-2015, 11:44 AM
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Are you filling the bike on its side stand, or holding it centered with your hip? Have you raised the suspension, being 6'6"? That would cause it to lean further and the difference would be greater then a stock bike. Are you sure you have a stock petcock? What year is your bike -(did they change the screen height for the main line at some point)-?

I don't have a stock petcock, so when I hit reserve is of no value to you.


Edit: whoops, 1st post after 6 months of stalking. HI!

Last edited by Slack; 05-06-2015 at 11:46 AM. Reason: to say hello
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post #3 of 17 Old 05-06-2015, 12:18 PM
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On my 2008 KLR I started with the tank bone dry and it took 6.1 gallons to brim full with it standing straight up not on the stand. It would hold a little less on the side stand. I have 105K miles on it with many fills of the tank. I always fill it to the brim while on the side stand and I always record the gallons and mileage.

On several occasions I have hit reserve right in front of a gas station and recorded 4.9 to 5 gallons to brim full on the stand. So, I call it 4.9 gallons to reserve.

So here is what I think based on lots of experience and assuming you fill the tank on the side stand leaving a little air on the right side.

Fuel before reserve -------------- 4.9 gallons
Normal reserve (no tilt or shake)-- 0.72 Gallons
Tilt-over-extra-reserve ---------- 0.23Gallons
Total reserve with tilt ------------ 0.95 Gallons
Unreachable fuel remaining ------- 0.016 Gallons

I fill right up to the brim, but I am sure that if I just put the nozzle down in the tank like I do on my truck and stopped filling when it clicked off, it would take several tenths of a gallon less than filling to brim full.
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Last edited by GoMotor; 05-06-2015 at 12:26 PM.
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post #4 of 17 Old 05-06-2015, 06:37 PM
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It's between 4.4 and 4.5 when I hit reserve.

I have a 2013.
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post #5 of 17 Old 05-06-2015, 06:56 PM
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Quote:
Originally Posted by tjduexjr View Post
It's between 4.4 and 4.5 when I hit reserve.

I have a 2013.
Is that with the nozzle down in the tank and stopping when it clicks off or filling all the way to the top of the filler neck?
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post #6 of 17 Old 05-07-2015, 12:50 AM Thread Starter
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Ok so the bike is an '04 and it is on the side stand. I did tighten up the rear spring but it doesnt lean any more than before I adjusted the presets.

I fill it up until it touches the bottom of the rim on the high side of the bike. So its about halfway up the rim on the low side.

I am pretty sure it is the stock petcock, as I have never turned it off and neither did the P.O. And it does have the stock tank on it as well.
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post #7 of 17 Old 05-07-2015, 03:25 AM
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JK,
Seems to me that yes indeed, something is "way off".
I haven't seen any published figures for the fuel remaining in the tank when the you hit reserve but as you can see from the replies there is probably somewhere around 1 US gallon or just under 4 litres left when the main supply fails.
If you pull the tap off the tank, a relatively simple procedure, you'll see two pipes projecting vertically , both with fine mesh filters.
The taller of the two is your 'main supply', once the fuel drops below this level you're on reserve. I'm starting to think you may have some gunk in your tank that is blocking those fine mesh filters and causing the main supply to stop early.
Definitely worth pulling the tank off and having a look.
FWIW my '08 will go about 380 klm (236 miles) before reserve.
I have a policy of always filling the tank and always resetting the trip meter so I know exactly how my consumption is going.
I generally get about 21.5 klm/litre (50mpg) around town, and better, up to 24 klm/litre (56.5 mpg), on the highway.


iddy
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post #8 of 17 Old 05-07-2015, 07:45 AM
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Quote:
Originally Posted by GoMotor View Post
Is that with the nozzle down in the tank and stopping when it clicks off or filling all the way to the top of the filler neck?
Filling to the top of the filler neck.
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post #9 of 17 Old 06-11-2015, 11:51 PM
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My 2004... takes 4.8 gallons if I fill it right after switching onto reserve. Your 3.4 gallon value is not stock... sounds like someone raised the petcock main tube. Eddie Copeman did that on his... wait for it.... 2004.... maybe you bought his bike!

Watt-man

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still on original piston, rings, entire top end. Just an Eagle doohickey, torsion spring and a Thermo-Bob, of course!

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post #10 of 17 Old 06-12-2015, 05:30 PM
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Quote:
Originally Posted by Watt-man View Post
Eddie Copeman did that on his... wait for it.... 2004.... maybe you bought his bike!
Now Bill,
Just what are the odds of that being the case?

Good to see ya' / read ya' over here.

pdwestman
Modify at "YOUR OWN RISK"!

Still riding my 1987 KL650-A1. 85,000+ miles & counting
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