R1200R getting very poor mpg--around 30-35

[Waaarrrggghhh]

Getting low 30s, despite the on board computer saying 55mpg. I am really riding it softly and babying the throttle.

Anyone know what could be wrong with it? It has 19800 miles on it so is the engine still breaking in?

[Oldie]

Could be loads of things - you need to tell us more. For example, can you smell petrol from the exhaust, or have you checked for leaks from the fuel lines? Any service work done recently, maybe a new air filter and it's been reassembled incorrectly?

Probably the TPS, but impossible to say at this stage. What year is the bike?

[kramdra]

Riding slow will not get you more mpg. Letting the bike warm up before moving off, if you do this, is the biggest waste that people commonly do.

Have you just got the bike or is it suddenly worse than before?

[Waaarrrggghhh]

[Waaarrrggghhh]

[Nobby the Bastard]

Why ride a litre if you are expecting fuel economy? 35mpg seems reasonable.
____________________
trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Sprint ST 1050

[Waaarrrggghhh]

[Pete.]

[wristjob]

the mcn review thinks 47mpg average.
also some owners claim its a bit of a drinker round town.
the mpg computer is never going to tell the truth.
go to a local petrol station,(remember which pump)put your bike on its stand and brim the tank.(dont forget to pay for your fuel).
go for a ride about lets say 100 miles(easy on a softy like the bmw)then go back to the same petrol station and the same pump ,put the bike on the stand and brim the tank.look at how much petrol you got in.
then simple sums miles divided by litres used =miles per litre. if you want it in mpg just multiply your answer by 4.546.


tldr; computer lies

[Rogerborg]

[grr666]

[Waaarrrggghhh]

[Rogerborg]

Not blaming you.

Are you basing your calculation on a couple of full-to-empty tanks?

Tyres are properly inflated?

The 1200s do have a reputation for wonky TPSes, but I wouldn't panic prematurely if it's running smoothly.
____________________
Biking is 1/20th as dangerous as horse riding.
GONE: HN125-8, LF-250B, GPz 305, GPZ 500S, Burgman 400 // RIDING: F650GS (800 twin), Royal Enfield Bullet Electra 500 AVL, Ninja 250R because racebike

[ADSrox0r]

Fuelly says you should be getting in the 40's https://www.fuelly.com/motorcycle/bmw/r1200r

As already stated, chasing fuel consumption can be a long game. Check all the obvious basics first. See if you've got a vacuum leak or a dislodged hose somewhere, that often wreaks havok with fuel economy.

Also, make sure you're not doing your manual mpg calcs based on US gallons.
____________________
Current bikes: '08 VFR 800 VTEC(yo) , '07 ZZR1400 Winter hack: '95 Aprilia 650 Pegaso Currently lusting after: RC30

[Pete.]

Dunno about the 1200 but my 1100 has a very small air filter. It got so cruddy one time that changing it added 20 miles to the range.
____________________
a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[P.]

I'd trust your maths degree than an onboard computer.

[Waaarrrggghhh]

Just did another ride around, 31 miles and the bike drank 4.63 litres... thats 25mpg!!! that's fucked up!

[arry]

[Waaarrrggghhh]

[Kentol750]

4.63 litres and 31 miles is actually over 30 mpg. You need to learn maths first. Failing that;
Tank brimmed, do 100 miles of average riding encompassing all you normally do, brim tank. Tell us how many litres you used and someone will do the sums and get back to you.
____________________
Some bikes.

[Waaarrrggghhh]

[bamt]

You do realise that calculator is using US gallons, which are smaller than UK gallons? 1 US Gallon = 0.83 UK Gallons. You did 31 miles with 1.02 Gallons. More than 30mpg.

[arry]

Fuck me sideways.

[ADSrox0r]

[RhynoCZ]