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Tank Range

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Old 04-20-2011 | 11:36 PM
  #31  
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Originally Posted by Mattaua
I get pretty much an average of everything above (depending on the right wrist). Yesterday my RLOD came on at 103 miles, but I've gone as far as 120 without the light coming on.

And the MSR fuel bottles come in different sizes you can get a wee one, a not-so-wee one, or a freekin huge one.

MSR Fuel Bottle with CRP Cap - 30 fl. oz.

Is there one larger than 30oz, or is this the freekin huge one you're talking about?
Old 04-21-2011 | 12:35 AM
  #32  
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Best mpg's I've ever gotten on the VTR were 52.5mpg holding a steady 65mph for 165ish miles, still had a bar or 2 left on the gauge. 52.5mpg X 4.2gal = 220.5 possible miles, I can handle that.
Old 04-21-2011 | 05:29 AM
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Originally Posted by inderocker
Best mpg's I've ever gotten on the VTR were 52.5mpg holding a steady 65mph for 165ish miles, still had a bar or 2 left on the gauge. 52.5mpg X 4.2gal = 220.5 possible miles, I can handle that.
thats pretty damn good. the range on these bikes is the biggest **** off to me. ive got buddies who ride ss bikes and even just regular i4 bikes and they all get way better range than me. i feel like a bit of a dick making them stop in the middle of a ride so i can fuel up while they make it to the next fuel stop. had to do that on a big ride we did last year through the middle of no where. i filled up once on the way up, all of us filled up when we got to our destination, and i topped up on the way home and they didnt have to. other than that i love the bike
Old 04-21-2011 | 08:02 AM
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Originally Posted by uchi
thats pretty damn good. the range on these bikes is the biggest **** off to me. ive got buddies who ride ss bikes and even just regular i4 bikes and they all get way better range than me. i feel like a bit of a dick making them stop in the middle of a ride so i can fuel up while they make it to the next fuel stop. had to do that on a big ride we did last year through the middle of no where. i filled up once on the way up, all of us filled up when we got to our destination, and i topped up on the way home and they didnt have to. other than that i love the bike
Agreed. I have to fill up twice as often as my VFR and FZ1 riding buddies.
The MPG's itself isn't too bad 35-38mpg but with the small tank and no centerstand it's tough to even fill the beast up.
A range of 150 would be perfect for me.
It's too bad that the Euro tank was not fitted which i think is 1 gallon bigger.
Old 04-21-2011 | 09:15 AM
  #35  
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Originally Posted by majordomo490
Agreed. I have to fill up twice as often as my VFR and FZ1 riding buddies.
The MPG's itself isn't too bad 35-38mpg but with the small tank and no centerstand it's tough to even fill the beast up.
A range of 150 would be perfect for me.
It's too bad that the Euro tank was not fitted which i think is 1 gallon bigger.
Any forum members try importing a European tank?
Old 04-21-2011 | 09:38 AM
  #36  
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Originally Posted by CrankenFine
Any forum members try importing a European tank?
If you can find one... might as well try importing a unicorn...
Old 04-21-2011 | 09:53 AM
  #37  
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Sounds like we need a "Tuning for fuel mileage" thread instead of a "Tuning for performance" one!
Old 04-21-2011 | 10:34 AM
  #38  
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Originally Posted by majordomo490
Born and raised in England mate, mostly NW London like you (Wembley) so I know exactly wot you mean!!
Hows the North Circ & M25? Probably an even worse nightmare now eh?
Wembley? Gor blimey guv, I live in Kingsbury, Yeah the North Circ is just as much fun as ever, the M25 no worse! How long have you lived in the US? Cos they are really improving the major roads, the minor ones are full of pot holes.

Sorry to hijack guys
Old 04-21-2011 | 10:49 AM
  #39  
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What we need is for someone to make a tank like this guy did on the Durbahn website. This is on an RC-51, and if you're looking at the rear tire, the tank is at 11 o'clock, right under the seat. Now that would rock for our Super Hawks. Have two tanks that we can switch between. I'm not sure how we would make the second tank work though, seeing as how our carbs are gravity fed.




Last edited by CruxGNZ; 04-21-2011 at 10:59 AM.
Old 04-21-2011 | 10:52 AM
  #40  
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Originally Posted by CruxGNZ
What we need is for someone to make a tank like this guy did on the Durbahn website. This is on an RC-51, and if you're looking at the rear tire, the tank is at 10 o'clock, right under the rear seat. Now that would rock for our Super Hawks. Have two tanks that we can switch between. I'm not sure how we would make the second take work though, seeing as how our carbs are gravity fed.
A large cell exists if you are willing to fork out the cash:
FuelCel, Home of the Worlds best Composite Motorcycle Fuel Tanks !
Old 04-21-2011 | 11:15 AM
  #41  
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$1200 bucks for a lightweight tank!? Damn.

This just gave me an idea. Buy another fuel tank, split it in half and make it bigger. Make it a little taller and a little deeper, although I'm not sure how much deeper it can go before it hits the air box. Well, put one more project on my list.
Old 04-21-2011 | 11:20 AM
  #42  
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Originally Posted by CruxGNZ
What we need is for someone to make a tank like this guy did on the Durbahn website. This is on an RC-51, and if you're looking at the rear tire, the tank is at 11 o'clock, right under the seat. Now that would rock for our Super Hawks. Have two tanks that we can switch between. I'm not sure how we would make the second tank work though, seeing as how our carbs are gravity fed.
Small electric pump and a switch on the handlebars someplace. When the low fuel indicator comes on, pump the extra gas into the main tank. that way the fuel indicator will still provide the safety net of knowing when on reserve.
Old 04-21-2011 | 12:27 PM
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Originally Posted by Old Yeller
Small electric pump and a switch on the handlebars someplace. When the low fuel indicator comes on, pump the extra gas into the main tank. that way the fuel indicator will still provide the safety net of knowing when on reserve.
Pumping from a 2nd tank into the main one is a great idea. I wouldnt have thought of that. Prevents alot of issues!
Old 04-21-2011 | 01:10 PM
  #44  
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I've seen cruiser guys do it because their tanks aren't all that big either.

Alternatively, if you want to try to fit my concours tank to a hawk, the 7.5 gallons would keep you rolling for quite a while.
Old 04-24-2011 | 09:37 PM
  #45  
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At 6.1 gallons, if I'm not whipping on it too hard, I can theoretically get ~225mi out of a tank at roughly 37mpg. Since it's not a factory tank, and I am unsure about how accessible that last 1/2 gallon or so is... If I am out in the twisty backroads, I start looking for fuel opportunities at around 180 just to avoid getting stuck out in the sticks somewhere.
-R
Old 04-24-2011 | 09:50 PM
  #46  
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Old 04-24-2011 | 10:12 PM
  #47  
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Acerbis Rear Auxiliary Fuel Tank Acerbis Rear Auxiliary Fuel Tank [Acerbis Auxiliary Fuel Tanks] - $87.95 : North Coast Motorsports
Old 04-24-2011 | 10:18 PM
  #48  
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Or start with one of these and do an aluminum auxiliary tank:
Meziere Enterprises PN6700 - Meziere Weld-In Bungs - Overview - SummitRacing.com
Meziere Enterprises PN6500 - Meziere Weld-In Bungs - Overview - SummitRacing.com
Old 04-25-2011 | 04:44 AM
  #49  
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Originally Posted by autoteach
Trust me, I will give the recipe up when I find it. First step is going to the stock filter. I know that this will make a change because I tried pulling the k and n out last year and throwing it in and the bike was angry rich everywhere. I also will be examining the flatspot that I have (2-1 exhaust issue) which can be fixed with some exhaust restriction (know this from some previous testing). Once this is all shored up, I am hoping to get up to the low to mid 40's.
On a car we would just raise the final drive ratio to reduce engine RPMs right? I wonder what effect this would have on the SuperHawk. I'd like better mileage too. My Acura RSX-S gets 27 MPG all the time (200 HP 4 cylinder). Admittedly its a fuel injected engine, but it's got over 80K on the odometer and it's got a 4:55:1 final drive ratio.
Old 04-27-2011 | 08:44 AM
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Originally Posted by autoteach
Trust me, I will give the recipe up when I find it. First step is going to the stock filter. I know that this will make a change because I tried pulling the k and n out last year and throwing it in and the bike was angry rich everywhere. I also will be examining the flatspot that I have (2-1 exhaust issue) which can be fixed with some exhaust restriction (know this from some previous testing). Once this is all shored up, I am hoping to get up to the low to mid 40's.
Pardon me for the slight hi-jack. I apparently don't know as much as I think I do (reoccurring problem). I want to make sure I understand something that is very basic to tuning.
Do I understand your post correctly? You stated that when you installed the K&N air filter the motor went rich. If that is the case, why would putting in the higher flow air filter cause the engine to run rich? My understanding is that it would cause the engine to run lean (more or less, depending). I have been thinking that a slight leaning would yield a small improvement in performance and fuel economy. I know that Honda recommends a re-jet for 6000 and above. Since air density doesn't just change right at 6000ft. I live and do most of my riding at 5000-5600ft. My bike, as far as I know, 100% stock.
Old 04-27-2011 | 06:04 PM
  #51  
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Originally Posted by xeris
Pardon me for the slight hi-jack. I apparently don't know as much as I think I do (reoccurring problem). I want to make sure I understand something that is very basic to tuning.
Do I understand your post correctly? You stated that when you installed the K&N air filter the motor went rich. If that is the case, why would putting in the higher flow air filter cause the engine to run rich? My understanding is that it would cause the engine to run lean (more or less, depending). I have been thinking that a slight leaning would yield a small improvement in performance and fuel economy. I know that Honda recommends a re-jet for 6000 and above. Since air density doesn't just change right at 6000ft. I live and do most of my riding at 5000-5600ft. My bike, as far as I know, 100% stock.
It's a good question and hopefully someone who knows for sure will answer. My guess is it has something to do with the airbox design and the ports used to communicate air to the slides. If abnormal vacuum condition exists in the airbox I think timing of slides lift could be affected, but it's only a guess on my part... Let's wait for a carb expert to weigh in.
Old 05-01-2011 | 02:45 PM
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I'm no carb expert, but I switched from my K&N to a stock air filter last year to try to get rid of the 3.5K rpm lean spot. My gas mileage went down from 42 mpg to 35 mpg by switching to the stock air filter. The stock filter made me run richer, due to my jetting being set for the K&N filter.

I will try a 48 slow jet and K&N this time to try to get my mpg back up and my lean spot gone. Before I was filling up at 110 miles (when light came on), now 95 miles. That extra 15 miles is a big deal on a remote ride.
Old 05-01-2011 | 03:15 PM
  #53  
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Originally Posted by xeris
Pardon me for the slight hi-jack. I apparently don't know as much as I think I do (reoccurring problem). I want to make sure I understand something that is very basic to tuning.
Do I understand your post correctly? You stated that when you installed the K&N air filter the motor went rich. If that is the case, why would putting in the higher flow air filter cause the engine to run rich? My understanding is that it would cause the engine to run lean (more or less, depending). I have been thinking that a slight leaning would yield a small improvement in performance and fuel economy. I know that Honda recommends a re-jet for 6000 and above. Since air density doesn't just change right at 6000ft. I live and do most of my riding at 5000-5600ft. My bike, as far as I know, 100% stock.
Actually he said he removed the K&N and installed a stock filter and it went rich.....
Old 05-04-2011 | 07:01 PM
  #54  
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Originally Posted by 8541Hawk
Actually he said he removed the K&N and installed a stock filter and it went rich.....

Thanks, makes sense now.
Old 07-23-2011 | 07:32 PM
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Sorry about waking a dormant thread, but I just noticed it.
I got 360km neat out of a tank, she took 18.3 litres when I refuelled her.
She ran dry at the top of the hill down into dunedin, I rolled her down to the petrol station about 500m along the bottom. In neutral she still had 40km/hr to roll into the petrol station with...
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