Fuel consumption

Yeah I tried bp ultimate and I reckon it ran worse, Shell V power seemed about the same as normal, maybe a bit better. But then sometimes it seems like the bike runs better just after being filled up if it was on reserve? It's hard to tell, maybe I just imagine it. 
I have just serviced my bike and done valve clearances, cleaned the air filter, fitted new spark plugs and balanced the carbs and its never run better. Got bt45's at 36 front 38 rear. The best I ever got was 57mpg, normally I hit reserve at about 150 miles.

Beresford wrote:

Worst was 48.3 and best 54.5 at fill-ups.

Almost exactly the same as my 'S'. You're not 6'4" and 20stone as well , are you?


No, I'm a shortie, 5'7" and 13 stone.

I checked this again and ran the bike full to reserve - all in town pretty throttle happy and got exactly 45.5 mpg.

I filled up with regular bp half a tank like normal and got 20 miles less than my last half fill from tesco go go figure! !

I got 67 miles to the gallon from my last fill up, I only got 60 the tank before. The same sort of riding, the same roads, but a big difference.

I may just monitor where I get my fuel, see if that makes a difference to my consumption.

I got 57mpg on my last check.  Is not great but not bad for my style of riding.

May be of interest to some of you on this thread.....  on my RTW trip attempt 3 years ago on an old 96 model cb500..  Very steady riding gave me up to 68ish mpg (fully..and I mean FULLY loaded)

On my next attempt on a similar machine  http://atwi80m.blogspot.co.uk/   I have already put a 14t front sprocket on... and really do hope to hit near 80mpg?

 Will post on the website when I test it soon!

Hi,

Having just done my third fill-up since getting my CB500 back in early November, I can confirm that with my rather stop-start London commute I am only getting around 40mpg.

Not that impressive, but I can live with it for the smile put on my face when do get the opportunity to open the throttle...

Jim

Well lubing the front brake caliper slide pins with silicone grease and using shell V power increased mileage to 42 mpg- and increase of  4 mpg.

Wow! Huge variation in economy here. Since servicing my bike, the last tank of fuel I was rather throttle happy, including a blast with my brother riding pillion, absolutely ragging it, and I got 57mpg. This tank I'm riding it more gently to see how much better economy I get. Won't be great though because my commute is only 20 miles - short journeys are relatively wasteful of fuel, with my last CB500 I had 75 mpg a few times, from 100+ mile journeys.

Resurrecting this old chestnut again....
Finally got around to checking mpg after recent 425 mile trip, packed top box, tent, roll bag etc. Never got much over 80mph except for a bit on some A roads (which was, maybe, 50% of the trip) and quite a bit of slow riding in small towns and on some really crap rural roads too.
Works out average 68.73 miles per gallon. Had to check the sums again - I knew she was good but, fook me, not that good!

How can you manage that?! Getting about 44mpg here, never more, bike pulls like a champ and is in good shape, bt45 rears are gone in about 2000 miles.

Long rides make all the difference to economy. My last bike was wearing out, was getting so I had to switch to reserve at as little as 180 miles, but when I rode it from Weymouth to Nottingham in a day, was showing 220 miles when I put on reserve! That was a fully loaded ride, throwing it around in twisty lanes as well...

HomeBrew wrote:How can you manage that?!

I suppose it's cos she's just in great running nick, or at least, as near perfect as I  can get her. She's completely stock with only 16k miles and was minded like a child before I got her. Had an old wise bike mechanic mate of mine check over the fuel system a while back and he fettled the carbs, think that helped too.
And maybe I just ride like an old codger...

I average 55-60mpg. 104,000 miles, ride it hard, mixture of twisties, town and open road.

I normally get 60mpg, which at current prices (about £1.33 a litre) is less than 10p a mile.

On a 400 mile round trip to Wales and back I got 70mpg. That's half motorway, half 50-60mph A-roads with a few towns and villages along the way.

Honestly, if I were only getting 30-40mpg, I'd be ditching the CB5 for something with more ooomph. Mpg is the reason I keep it around.

HomeBrew wrote:How can you manage that?! Getting about 44mpg here, never more, .........bt45 rears are gone in about 2000 miles.

Maybe a clue in that last bit 

jonny10 wrote:

HomeBrew wrote:How can you manage that?! Getting about 44mpg here, never more, .........bt45 rears are gone in about 2000 miles.

Maybe a clue in that last bit 

 

i did 540 miles on tuesday averaging 55 mpg and a sore back.

As I have probably said before, I get about 45 mpg when going to and from work (in town, starting, accelerating and then stopping repeatedly) but have got more than 60 mpg on a long run, not hanging around, but not too mad.

So I think it varies a lot with the riding conditions and how much stopping/accelerating you have to do.

I get about 55.5MPG (5.09 l/100k) from mine. I am a very conservative driver normally and I have seen reports of 35-65MPG quoted, although what people are doing to get the extremes, I do not know!

I have to ride consistently really carefully and speed up ever so slowly on my CB5 to get anywhere near the mpg I get in my Volvo V70 auto. I don't always bother but it is much more fun on the bike.