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View Full Version : Fuel consumption & 15t sprockets? Wierd.



Nooj
06-14-2005, 12:31 PM
Interesting, on a weekend blast over to France with a near identical Falco in the party, I was getting fewer miles before the fuel light came on than the other guy. The only mechanical differences between bikes were the sprocket sizes, air filters, a PCIII on mine and end cans. We were riding at near identical speeds over hundreds of miles and each time my light would come on first.

I assumed it was down to my smaller sprocket to start with, but on the last fill-up we both put about 16 litres in our tanks, maybe 16.5 in mine. My fuel light had been on for about 30 miles before the stop though and the other guy's hadn't. In fact he said his didn't normally light up untill he'd got through 16 litres.

So... How many litres will all your tanks take just after the light has come on? Mine seems to be 15 and a bit generally, how much difference is there between bikes?

CarlosT
06-14-2005, 12:34 PM
...only mechanical differences between bikes were the sprocket sizes, air filters, a PCIII on mine and end cans...

That's a lotta variables, dude. How about chain condition or rider weight or color? I think the black ones are faster but get worse mileage :D

Firebolter
06-14-2005, 12:37 PM
My light used to come on right at 140 miles and would take 4 gallons. Now it comes on around 150....so I just think it is not that accurate. I stop at 140 miles for gas now as I ran my bike dry one day and it was at 171 miles when it ran out of gas....

twinkiethekid
06-14-2005, 12:38 PM
Stock gearing, Renegade airbox, Akrapovic cans

The fuel light came on and I was only able to get 3.5 gallons into the tank with 150.2 miles on the trip meter

That is 13.2 litres and 241.7 kms to those of you handicapped by the metric system. :rolleyes:

gi02sl
06-14-2005, 02:52 PM
about 160 miles and 4 gallons to reserve light....i usu ride about 20 miles into the reserve but can make it 40 (tested - teaspoon left in the tank)

Litre1
06-14-2005, 03:35 PM
Mine comes on at 131 miles, give or take 0.1...

Unless they are interstate miles, then more like 150. And if I'm wringing the snot out of it, 124.

16-42, Evo airkit, race can, Arrow chip

Don
06-14-2005, 05:52 PM
On one of my 'regular' rides, the light comes on about 220kms and I normally fill up at about 260kms and it takes about 16 litres.

Btw Carlos, what has rider colour got to do with economy. :lame: Joking, joking, it just read funny. :cathat:


How about chain condition or rider weight or color?

Cheeky Twinkie


to those of you handicapped by the metric system.

Hmm, really!! ;) :p:


:peace:


:aussie:

Exdukenut
06-14-2005, 05:56 PM
On average mine comes on at 200kms, for general Sunday rides. Touring at say 120-130kph, gets me around 230kms before light.

Most I've been able to fill the tank is 17.6 litres, and that is sitting on the bike, and very slowly adding fuel at the end, to get that little bit extra in.

:cool:

Falco9
06-15-2005, 10:23 AM
After some low-life "keyed" my tank for fun, I had the tank resprayed by a good friend.
The tank (obviously) was bone dry and took exactly 18 litres to fill to the brim. Where Aprilia reckon it holds 21 litres from I'll never know. I have never got past 125 miles before the light comes on (15t, Rene airkit, cans etc..) On the Island (TT) I got 90 miles and the light came on (best 90 miles I've ever ridden mind you)
The tank does have these breather tubes running through the moulding so maybe the thickness of the moulding alters and hence gives us all different tank capacities?

F9 :funnypost

M.G.A
06-15-2005, 01:11 PM
Falco9 is the only bike in here that's close to my bike in consumption.
The best I ever got out of a tank was 142 miles, before reserve.
Otherwise I average around 100-120 miles, and this in the fastest colors, Black&Red. :p:

go_modem_go
06-15-2005, 04:35 PM
Consumption on mine is around 7-8 l/100km or an average 200-220kms (125-138mls) per tank until the light comes on. Lowest ever was 6.2l/100km whilst running in a new tyre on constant speed. 15 tooth sprocket, another EPROM, Leo Vinces and a lot of full throttle riding (mainly in France, but also German Autobahn). I guess the sprocket and the map makes a huge difference - changing the chip immediately improves consumption (I have 3).

The Falco is a gas guzzler - on tours my bike is the thirstiest of the bunch. Gobbles down a lot more than my carī.

20Hz
06-15-2005, 06:00 PM
hahah either you guys ride like grandmas, you all do mostly freeway miles, or my bike sucks gas.

Or some combination thereof.

80-90 miles before the light. That's city commuting with a brief blast on the freeway and lots of unnecessary acceleration and deceleration :D

gi02sl
06-16-2005, 02:52 PM
I rarely go on a ride less than 200 mi and at least half ends up being hwy. Although, when I'm with others my bike doesn't tend to be the biggest gas guzzler. 38-40 mpg on the road drops to about 25 mpg on the track, so yeah, riding style makes a big difference.