pregens - fuel range

Coolbpf · October 19th, 2012, 04:13 PM

Do pre-gens really have a 4.8 gallon tank? If so, why aren't we getting like 300 per tank?

gitoy · October 19th, 2012, 04:27 PM

yes they do...i get about 240 before reserve which leaves another gallon...so there you go, 300 if you ran it dry...

of course ymmv depending on your riding style...cruising, stop and go, canyons, etc....

Alex · October 19th, 2012, 06:10 PM

/pre-gen tech

n4mwd · October 20th, 2012, 04:52 AM

The total tank size is 4.7 gallons (18 liters). You can use about 4 gallons of that before switching to reserve. However, because of the shape of the tank, the reserve amount is divided between the two sides of the tank. So you could run dry on the left side, but still have gas on the right.

You should calculate your mileage and then figure out how many miles you can go on 4 gallons. Then get gas before you hit that number.

You should also check your mileage with each fillup. It can change. My bike got 70 mpg when I got it, and now only gets 55-60 mpg. So something is wrong with it and I haven't figured it out yet. So for me, I get gas after 200 miles or so.

mrcrunch · October 20th, 2012, 04:55 PM

I get 300+ on mine. I fill after at the first opportunity after I hit the reserve, usually around 250. But i've seen 300 a couple of times.

I bet @greenaero gets 400 plus.

FrugalNinja250 · October 21st, 2012, 06:36 AM

I hit reserve typically around 3.7 gallons down. The capacity of the tank is more theoretical because of the shape of the tank. There's a big hump that runs up the middle, dividing the lower tank into two sections. There are also pockets at the bottom that hold fuel that's lower than the lowest petcock pickup point. Basically, the published capacity is what the tank will hold when filled from completely dry to the filler neck, and actual capacity is the fuel level above the bottom of the petcock reserve inlet tube, on the left side of the tank. You can lean the bike and slosh fuel over to the left side from the right, but there will always be a quart or more of fuel in the tank that's just not useable.

choneofakind · October 21st, 2012, 02:22 PM

Quote:

Originally Posted by Coolbpf

If so, why aren't we getting like 300 per tank?

Because none of us like pushing it to the gas station.

rabies · October 22nd, 2012, 04:47 PM

i get about 200 miles. but i beat the living fart out of the bike

October 19th, 2012, 04:13 PM	#1
Coolbpf Limp Noodle Name: Tyler Location: Missouri Join Date: Jun 2012 Motorcycle(s): 2006 Ninja 250, Fastest Red money can buy Posts: 212	pregens - fuel range Do pre-gens really have a 4.8 gallon tank? If so, why aren't we getting like 300 per tank?

October 19th, 2012, 06:10 PM	#3
Alex ninjette.org dude Name: 1 guess :-) Location: SF Bay Area Join Date: Jun 2008 Motorcycle(s): '13 Ninja 300 (white, the fastest color!), '13 R1200RT, '14 CRF250L, '12 TT-R125LE Posts: Too much. Blog Entries: 7	/pre-gen tech __________________________________________________ Montgomery Street Motorcycle Club / cal24.com / crf250l.org / ninjette.org ninjette.org Terms of Service Shopping for motorcycle parts or equipment? Come here first. The friendliest Ninja 250R/300/400 forum on the internet! (especially Unregistered)

October 20th, 2012, 04:52 AM	#4
n4mwd ninjette.org certified postwhore Name: D Location: Palm Beach, FL Join Date: Oct 2010 Motorcycle(s): 2006 Ninja 250R, 2007 EFI Ninja 250R Posts: A lot. Blog Entries: 1	The total tank size is 4.7 gallons (18 liters). You can use about 4 gallons of that before switching to reserve. However, because of the shape of the tank, the reserve amount is divided between the two sides of the tank. So you could run dry on the left side, but still have gas on the right. You should calculate your mileage and then figure out how many miles you can go on 4 gallons. Then get gas before you hit that number. You should also check your mileage with each fillup. It can change. My bike got 70 mpg when I got it, and now only gets 55-60 mpg. So something is wrong with it and I haven't figured it out yet. So for me, I get gas after 200 miles or so. __________________________________________________ My Ninja Blog Proud member of ABATE.My NYC Road Rage documentary - CENSORED!

October 22nd, 2012, 04:47 PM	#8
rabies time is running out.... Name: jesse Location: the land of corn Join Date: Sep 2012 Motorcycle(s): pregen ninjari Posts: 412 Blog Entries: 3	i get about 200 miles. but i beat the living fart out of the bike __________________________________________________ The King

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Where's the Factory Pro jetting database for pregens?	mr2peak	1986 - 2007 Ninja 250R Tech Talk	3	May 5th, 2014 09:02 AM
APE Cam chain tensioner fit Pregens?	quarterliter	1986 - 2007 Ninja 250R Tech Talk	2	August 4th, 2013 09:02 AM
Custom Fairings for pregens?	CalvinAmI	1986 - 2007 Ninja 250R Farkles	10	June 10th, 2013 08:22 PM
Fair Prices For 2005 pregens	etiainen	General Motorcycling Discussion	16	March 23rd, 2012 07:06 PM
Anyone ever hear of, have or find any pics of a rear tire hugger for our pregens?	Grn99Kawi	1986 - 2007 Ninja 250R Farkles	9	September 5th, 2009 08:58 PM

October 19th, 2012, 04:27 PM	#2
gitoy ninjette.org guru Name: gitoy Location: rpv, ca Join Date: May 2009 Motorcycle(s): 04 ninja 250, 05 zzr 600 (sold), 07 cbr600rr Posts: 319	yes they do...i get about 240 before reserve which leaves another gallon...so there you go, 300 if you ran it dry... of course ymmv depending on your riding style...cruising, stop and go, canyons, etc....

October 20th, 2012, 04:55 PM	#5
mrcrunch ninjette.org member Name: Brian Location: wixom MI Join Date: Jul 2011 Motorcycle(s): 2007 250r Posts: 54	I get 300+ on mine. I fill after at the first opportunity after I hit the reserve, usually around 250. But i've seen 300 a couple of times. I bet @greenaero gets 400 plus.

October 21st, 2012, 06:36 AM	#6
FrugalNinja250 ninjette.org certified postwhore Name: Frugal Location: Dallas/Fort Worth (DFW) Join Date: Mar 2010 Motorcycle(s): Several Posts: A lot.	I hit reserve typically around 3.7 gallons down. The capacity of the tank is more theoretical because of the shape of the tank. There's a big hump that runs up the middle, dividing the lower tank into two sections. There are also pockets at the bottom that hold fuel that's lower than the lowest petcock pickup point. Basically, the published capacity is what the tank will hold when filled from completely dry to the filler neck, and actual capacity is the fuel level above the bottom of the petcock reserve inlet tube, on the left side of the tank. You can lean the bike and slosh fuel over to the left side from the right, but there will always be a quart or more of fuel in the tank that's just not useable.