749 Tank Range
 

Hi Guys, What sort of range are you getting out of a full tank on your standard 749, mine is going into the dealer later in the week to be re-tuned, but I was wondering whether it is a bit thirsty or not? I am getting the light come on at 70 to 80 miles and working it out, will run dry at 110 to 120 miles. This is general riding including motorway cruising.:confused:

I would guess that is thirsty. My 999s has a 67mm Leo Vinci exhaust system,ecu and DP air filters. Been dyno'd at 145bhp at the back wheel and my fuel light comes on at pretty much 85 miles every time.

It does sound as if the bike is using a lot of fuel,.....are you sure its up to the brim when you fill up?
Mind you,those fuel level sensors can be a bit hit or miss.
As a comparison,my 999S with assymetric system will do,on average,100 miles before the light comes on.If I'm 'trying',I can get the light on at around 75 miles.:devil:

I get about 100 miles from my 2005 749s, general roasd use.

Sounds about right, that's what I used to get.

always 80-85 miles
749s 54mm full system and chip

Thanks Guys, sounds like it is a bit thirsty I just wanted an idea so I can tell the dealer when I take it back, it is cutting out on tick-over and also backfires around 4000 rpm, so they are going to re-tune. Will let you know the result.

Hmmm. Mine cuts out on tickover sometimes, usually when at the lights next to a moped... Look like a right tit.

Regards

Mark.

100 miles fuel light comes on - 2004 749s standard exhaust

999s with asymetric termis - anything between 85 - 115miles when the low fuel light comes on. You will get quite a low figure if you dont brim it when you fill up. I always sit on the bike holding the bike absolutely vertical (hell I sometimes get fuel coming out the overflow when I park it back on the stand).

Do you fill it up on the sidestand?

Hi, I do fill it up on the side stand but right to the top just before it spills out, working out the mpg on what it has used since the last fill up etc. works out about 35mpg.

35mpg does seem low! Its a while since I measured mine but I'm sure mine is typically between 40 - 45mpg.

I'm pretty sure it is running rich, hence the pops and bangs coming from the exhaust, I'll let the dealer know tomorrow when it goes in to be re-tuned, just wanted an idea in my own head incase they try to fob me off etc. will let you know tomorrow after it has been done what the difference is. Done a weekend away last week up to the Yorkshire Dales covering 540 miles, my mates Triumph 955st used half the petrol my 749 did.

All Sorted! The valve clearences on the rear cylinder were a little tight and the throttle bodies needed re-balancing. The bike now ticks over at 1000 rpm and did not cut out once on the 90 mile trip home, pulled really well from tick over up through the rev range with no flat spots and there were no pops or bangs from the exhaust. The tank was full when I left the dealer and after 90 miles the fuel light has not yet come on, it got a bit of stick as well!