Fuel tank
05-24-2008, 08:55 PM
#1
Senior Member
Superstock
Thread Starter
Join Date: May 2008
Location: S.Dak USA
Posts: 347
Fuel tank
Just bought a 98 superhawk.Very cool bike! Want to change the fuel tank,does the late model 19 liter tank fit the earlier bikes with the 16 liter tanks? Cheers for any help!! Steve G
05-24-2008, 09:40 PM
#2
Senior Member
SuperSport
Join Date: Nov 2007
Posts: 758
you and your damn liters. haha. i cant answer your question, but you chose a damn cool bike to buy. my superhawk is my first street bike. other than that, ive been riding dirt bikes my whole life. badass bikes are the superhawks/firestorms.
05-25-2008, 01:35 AM
#5
Moderator
MotoGP
Join Date: May 2005
Posts: 2,708
All U.S. models have the same size tank... 4.2 gallons
Euro models started out with 3.5 gallon tanks that were bumped up to 4.2 in 2001.
AFAIK all tanks have the same mounting points.
Euro models started out with 3.5 gallon tanks that were bumped up to 4.2 in 2001.
AFAIK all tanks have the same mounting points.
Last edited by inderocker; 05-25-2008 at 01:37 AM.
05-25-2008, 02:29 AM
#6
Out of my mind, back in 5
MotoGP
Join Date: Nov 2006
Location: Skurup, Sweden
Posts: 6,109
YES, it's a direct bolt on as long as you have the petcock and tubing from the newer model... (Or atleast generic tubing to cut to length) If you are keeping the stock cluster, the fuel tank sensor is a direct swap, the newer does NOT work with the old cluster...
05-25-2008, 02:42 AM
#7
Senior Member
MotoGP
Join Date: Aug 2007
Location: Way Out West
Posts: 2,547
"All U.S. models have the same size tank... 4.2 gallons"
That's correct. And that IS 16 litres. A litre is 1.05 quarts. (1.05 x 16= 16.8 /4 = 4.2) ALL '98-'00 VTRs had 16 litre (4.2 gal.) fuel tanks. In '01 Europe, Australia etc. got the 19 litre tank, which is actually a few ounces shy of 5 gallons. North Americans (U.S. and Ca.) never got anything but the 16 litre/4.2 gallon tank.
PS... The VTR fuel capacity info posted on Wikipedia is bogus.
That's correct. And that IS 16 litres. A litre is 1.05 quarts. (1.05 x 16= 16.8 /4 = 4.2) ALL '98-'00 VTRs had 16 litre (4.2 gal.) fuel tanks. In '01 Europe, Australia etc. got the 19 litre tank, which is actually a few ounces shy of 5 gallons. North Americans (U.S. and Ca.) never got anything but the 16 litre/4.2 gallon tank.
PS... The VTR fuel capacity info posted on Wikipedia is bogus.
Last edited by RK1; 05-25-2008 at 02:48 AM.
05-25-2008, 03:03 AM
#8
Senior Member
MotoGP
Join Date: Aug 2007
Location: Way Out West
Posts: 2,547
I wouldn't have any use for a bigger tank if somebody gave me one. I must have the most incredible VTR ever built 'cause I get 45 mpg on the hywy going 78-80 mph with regular roll-ons to 110-115 mph. If I hold to 65 mph and avoid the roll-ons, I get over 50mpg. I'm always ready to strech my legs, take a leak and have a smoke before that red light starts blinking.
05-25-2008, 08:24 AM
#10
Senior Member
SuperBike
Join Date: Mar 2007
Location: Williamsburg, VA
Posts: 2,455
05-25-2008, 08:36 PM
#14
Senior Member
MotoGP
Join Date: Aug 2007
Location: Way Out West
Posts: 2,547
I never did any scientifc test of the odometer, but comparing it to what Mapquest says and what my F150 reads, It seemed spot on before I swapped sprockets.
Drew; I changed the sprocket a while ago, but I think with stock sprockets at indicated 65mph it was around 3700 rpm in 6th.
05-25-2008, 08:51 PM
#15
Senior Member
SuperBike
SuperBike
Join Date: Jun 2007
Location: Los Angeles ish
Posts: 1,031
Found a 20 liter tank (5.3 gall) www.eti-fuelcel.com/VTR.HTML
05-26-2008, 12:31 AM
#19
Senior Member
MotoGP
Join Date: Aug 2007
Location: Way Out West
Posts: 2,547
Calculated speed (if it could pull it) for the VTR at redline (9500 rpm) in sixth is 169.3 mph. At 65 mph. that should be 3660 rpm. If all you change is the 16 tooth front to a 15 tooth, you should be turning about 3900 rpm at actual 65 mph. At 4400 rpm you should be going 73 mph.
That's what the math says anyhow.
Last edited by RK1; 05-26-2008 at 12:41 AM.
05-26-2008, 09:03 AM
#21
Senior Member
SuperBike
Join Date: Mar 2007
Location: Williamsburg, VA
Posts: 2,455
Found the equation where you plug in tire circumference , reduction ratios, gear ratios etc.
Calculated speed (if it could pull it) for the VTR at redline (9500 rpm) in sixth is 169.3 mph. At 65 mph. that should be 3660 rpm. If all you change is the 16 tooth front to a 15 tooth, you should be turning about 3900 rpm at actual 65 mph. At 4400 rpm you should be going 73 mph.
That's what the math says anyhow.
Calculated speed (if it could pull it) for the VTR at redline (9500 rpm) in sixth is 169.3 mph. At 65 mph. that should be 3660 rpm. If all you change is the 16 tooth front to a 15 tooth, you should be turning about 3900 rpm at actual 65 mph. At 4400 rpm you should be going 73 mph.
That's what the math says anyhow.
05-26-2008, 04:53 PM
#22
Senior Member
MotoGP
Join Date: Aug 2007
Location: Way Out West
Posts: 2,547
Yeah, Drew. The math i used is dependent on the nominal circumference of a 180/55/17 tire. Some tires are slightly smaller than "nominal", and a tire with a few thousand miles on it for sure is. I don't think that makes a giant difference, but it does make a difference.
I don't have gps and don't know a lot about it. I'm sure gps is accurate on a very straight, very flat road. On a road with curves and elevation changes, I'm not so sure.
If you're going to check your tach/speedo against gps readings, I'd ride a very straight, very level road to assure accuracy.
05-26-2008, 05:10 PM
#24
Senior Member
MotoGP
Join Date: Aug 2007
Location: Way Out West
Posts: 2,547
Yeah well, I've proven to myself I can get 50 mpg if I ride like grandpa Simpson, but the way I actually ride I get more like 44-45 mpg on the highway. I'm happy with that. It's better mpg than about any car I could buy. And no car that comes close will accelerate like my VTR.
05-26-2008, 07:59 PM
#25
Senior Member
SuperBike
SuperBike
Join Date: Jun 2007
Location: Los Angeles ish
Posts: 1,031
07-26-2008, 12:52 AM
#27
Senior Member
SuperSport
Join Date: Dec 2005
Location: Sunshine Coast, Australia
Posts: 963
You can do the swap, as I have done on my 98 model.
You will need the later model fuel tap, hose from the tank to the tap, and the hoses to the carbs. The later model has the fuel tap mounted to the frame in front of the shock.
The clip ons will still clear the tank, as most of the increased capacity is underneath.
It is a popular swap in Australia, and 19 litre tanks are hard to find because of this.
You will need the later model fuel tap, hose from the tank to the tap, and the hoses to the carbs. The later model has the fuel tap mounted to the frame in front of the shock.
The clip ons will still clear the tank, as most of the increased capacity is underneath.
It is a popular swap in Australia, and 19 litre tanks are hard to find because of this.
07-26-2008, 01:45 AM
#28
Senior Member
MotoGP
Join Date: Aug 2007
Location: Way Out West
Posts: 2,547
Yeah, and the only way for an American to do the swap is to find, buy and have shipped a tank from someplace like OZ 'cause nothing but the 16 liter tanks were ever shipped to North America. An American could probably have someone in Australia order a new 19 liter tank from a Honda dealer and then ship it here, but I can't imagine being able to pull that off for less than $1,000 or more USD.
07-27-2008, 11:22 PM
#29
Senior Member
SuperSport
Join Date: Dec 2005
Location: Sunshine Coast, Australia
Posts: 963
Yeah, and the only way for an American to do the swap is to find, buy and have shipped a tank from someplace like OZ 'cause nothing but the 16 liter tanks were ever shipped to North America. An American could probably have someone in Australia order a new 19 liter tank from a Honda dealer and then ship it here, but I can't imagine being able to pull that off for less than $1,000 or more USD.
07-28-2008, 01:05 AM
#30
Senior Member
MotoGP
Join Date: Aug 2007
Location: Way Out West
Posts: 2,547
Yeah, Shayne. I know you know. I was expanding on you comments not challenging them. Unless you are a multi-millionaire American who simply must have another 3 litres of fuel for your VTR, don't waste your time thinking about it. After a couple of hours on my bike, I'm always ready for a ****, a smoke, a cup of coffee and a chance to stretch my legs anyhow.
PS... Re; the motogp thread on ozfirestorm...This is one American who was pulling for Stoner at Laguna because;
1) I like Stoner anyhow
2) I like seeing little Ducati beat Yamaha and Honda
3) Any man who can cross the finish line while showing his *** to Rossi is worth cheering for.
PS... Re; the motogp thread on ozfirestorm...This is one American who was pulling for Stoner at Laguna because;
1) I like Stoner anyhow
2) I like seeing little Ducati beat Yamaha and Honda
3) Any man who can cross the finish line while showing his *** to Rossi is worth cheering for.
Last edited by RK1; 07-28-2008 at 03:22 AM.
