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Post Info TOPIC: ttr250 fuel range


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TTR250 fuel tank range
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tomorrow I'm going to ride 100 km from my house on the freeway at around just under 100km/h. probably 90 will feel best. ill fill up before i leave.

when i get to my destination i will refuel and see how much i used.

i predict nearly the whole tank will be used asmine seems a little thirsty for some reason, even prior to gearing changes, when it was straight out of the factory.

if the range is terrible, i may have to have the bike dyno'd to see whats going on. i will let you guys know of the outcome.

 



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I bet you can improve on the 50mpg that I am getting out of the 325 at the moment. Mind you, that is with some "enthusiastic" riding and very little 5th and 6th gear work wink

Brian



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yeah i might phone a place near me that does dyno's and see how much just for a print out so i can see whats going on.

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50 mpg is bloody awesome! i wish mine was doing that. that is 21km per litre and would give 210 km range from a tank. thats what im aiming for. i wouldnt add a bigger tank if i got that.


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sorry, but English "imperial" gallons are are bit bigger than those inferior "US" gallons.

50mpg (US) = 21.2 km/ l
but 50mpg (UK) = 17.7 km / l

If you get only 100km to a tank at ordinary/low cruising speeds, no huge hills, paved road something must be wrong.

I don't record all my fuel economy but once I got 176km to reserve including riding up into the hills (the Brindabellas, actually) - partly paved, partly easy gravel road, ascent from altitude 600m to 1300m, down to 700m, up to 1000m, then turned around and rode back (changing to "full economy mode" riding style as I thought I might not have enough fuel) - but I didn't go onto reserve (from a completely full tank) until 176km. In the break in period once, I only got 138km until reserve on paved road riding , but it was not absolutely full to start off with. So 22 km/ l is quite do-able and to get less than 20km / l you would need some moderately serious low gear stuff or sand etc (or a very big load).


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According to WikiAnswers Australians use litres and when converting to gallons an imperial gallon is used.

HERE - Here it says there are 4.22 litres in an Australian gallon but 3.8 litres to a US gallon. confuse

Trust America to use a different gallon from everyone else. biggrin

Martyn

 



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brindabella wrote:

sorry, but English "imperial" gallons are are bit bigger than those inferior "US" gallons.

50mpg (US) = 21.2 km/ l
but 50mpg (UK) = 17.7 km / l

If you get only 100km to a tank at ordinary/low cruising speeds, no huge hills, paved road something must be wrong.

I don't record all my fuel economy but once I got 176km to reserve including riding up into the hills (the Brindabellas, actually) - partly paved, partly easy gravel road, ascent from altitude 600m to 1300m, down to 700m, up to 1000m, then turned around and rode back (changing to "full economy mode" riding style as I thought I might not have enough fuel) - but I didn't go onto reserve (from a completely full tank) until 176km. In the break in period once, I only got 138km until reserve on paved road riding , but it was not absolutely full to start off with. So 22 km/ l is quite do-able and to get less than 20km / l you would need some moderately serious low gear stuff or sand etc (or a very big load).


 well that gives me something to feel good about then. my second tank (full) rode from goulburn to penrose state forest - 50km exactly, then around penrose on the throttle A LOT, around 10km, then back home 50km. i ran out before i got home. luckily i had a 5L jerry can on the back. i was giving it some on the freeway home though so it would have been revving a bit.

ill ride 100km tomorrow morning at medium revs cruising speed and see how i go. most people seem to be getting around 160km then reserve.



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I get 60-70ish mpg out of the Raid, and that DEFINITELY isn't riding "economically" !!

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just got back from 100 km round trip to work out L per 100km. i rode 50km, turned around and rode back. there were many hills and bends along the route. rode at 100km/h which i think is a fair speed to cruise between trails. I also checked my odometer which was spot on.

I am very happy to say that my bike used no more than 4.8L of 95 octane fuel on this 100km journey. Not bad for a bike running 13:50 sprockets.biggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrinbiggrin

I will definately cruise at speeds of 100km/h when on the highway. And i will use 95 ron petrol from now on. the 91 here is ethanol and i hate it, due to other reasons with my ducati so i dont use it.

One question though. When i got back, i realised i forgot to increase my tyre pressures. I did the trip with 15 on the back and 17 on the front. Do you guys think that higher psi in the tyres would have given better economy?



-- Edited by davecambo on Thursday 23rd of February 2012 01:59:23 AM

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I may be wrong, but generally the ethanol levels INCREASE with the RON number... thus 98 has more ethanol than 91. (though like I said, I may be wrong!)

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nah mate over here in glorious Australia, ethanol is only found in 91 ron fuel. we havent been forced to add it into all our fuels like other countries. yet. the moment we are im selling my ducati, because countless cases throughout the u.s and brittain are popping up of expanding fuel tanks caused by ethanols love for attacting water. Ducati just bent over for owners in a class action due to it. they now have to replace expanded tanks out of warranty for the owners when expansion signs become evident.

Anyway......... thats why i use 95 my friend.

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haha i was worried that theres something wrong with mine cauz last time i checked it did 24.5kmpl (driving reckless of course ;) )

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huh?

Caltex claim: "Australian Government regulation requires all pumps dispensing ethanol blends (up to the allowed maximum 10%) to be clearly labelled in accordance with the regulation. This regulation is backed up with random inspections and breaches are subject to heavy penalties".

I have never noticed any E10 signs at the pumps in my local Canberra servo - 91, 95 or 98.

intriguingly, Shell say "Why have you replaced Shell Unleaded 95 with Shell Unleaded E10 at my local service station?
We aim to offer our customers the best range of fuels that deliver better performance, more fuel economy and benefit the environment but we are not able to offer both Shell Unleaded E10 and Shell Unleaded 95 at selected service stations as they did not have sufficient storage tanks to stock all products."

It looks to me like ethanol based fuel is usually able to be avoided, not confined to 91 octane, but a few service stations don't give a choice for 95 octane.

the magic number "91" does impact tangentially with the evil "ethanol" word in an Australian government regulation though - apparently fuel containing 10% ethanol must be AT LEAST 91 RON.

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Yeah mate have a closer look next time at the 91 in all caltex and bp servos, not only are they green making it easier to spot, but nearly all 91 now is e10

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well, luckily the nation's capital is not so ethanol happy (can't get it at all at the local servo). however your state, NSW, has a 6% (of sales) ethanol mandate.

It was going to be illegal to sell ordinary 91 unleaded on July 2012 in NSW, but the politicians sensed the unpopularity, and so now legislation is being introduced to "ensure motorists can continue to buy regular unleaded petrol", NSW Premier Barry O'Farrell said 31 Jan 2012.

Of course the petrol stations really want to convert their 91 pumps to diesel pumps, given its popularity.
So we ought to start personally hoarding 91 grade fuel now

I wonder whether its just here in Australia that this sort of thing happens - maybe because of temporary overproduction of wheat, corn and sugar, and a powerful political lobby group of ethanol producers.

We'll all be sorry when food prices go up and anyway ethanol is shown to be not so green over its whole production cycle.

OK just to keep on topic - has anyone tried converting their ttr250 to run on straight alcohol (guaranteed to reduce fuel range)?
no? - what about diesel? (its been done for a KLR650 - just a bit of top end work needed!).



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brindabella wrote:

no? - what about diesel? (its been done for a KLR650 - just a bit of top end work needed!).


 If you're on about the US Army KLR650 Diesels, they were FAR from a standard KLR engine.



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Not sure I have enough time on the TTR yet. My ride from Albion Park along the freeway and then around the CBD in Sydney..... 5 litres for 150kms. What a 250 single should be doing The old TTR...... Was lucky to get 30mpg. In the bush. Had a staintune pipe, short gearing, air box chopped up, but didn't feel as sprightly (hard life at just 14,000 klm's) Seems standard is the way to go for economy

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tank range
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whats a typical tank range for a 250 1994 ttr commuting on trail tyres



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I average 72 miles per gallon with my TTR. aww

I've kept a record of mileage and petrol used from the date I got it (Aug-2010) to today.
Since then I've done 4,725 miles and put 66 gallons in, the tank is currently three quarters full.

I do a fair amount of road (tarmac) miles but far more miles on the trails and lanes of Devon.

Since the tank holds 10 litres (2.2 gallons) that equates to about 150+ miles per tank.
Allowing for never using the reserve I guess an average full tank will take me about 140 miles. confusewinkconfuse

Of course, if you are heavier than me or have a smaller/bigger tank and ride differently you may not get the same.disbeliefbiggrinno

You could always try draining your tank, putting a gallon in and then running it until it's all used. Then you could tell us how many miles to the gallon we could expect. biggrin

Martyn



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well thats better mpg than my 100cc kawk make getting to dragon rally on on one tank will be easy from notts

got its mot tommorrow, am i right in saying rear tyre has to be removed to change brake pads, getting bridestone trail wings fitted are they a good choice

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I've been riding on tarmac with knobblies on and at best got 99 miles and had to switch to reserve. I've now got road tyres on and am getting the same mileage to a tank, between 95-99 miles. Does that seem low? That's just shy of fifty mpg isn't it? As there's two gallons or so to reserve IIRC. The bike is a standard 2005 UK blue TTR. I ride about twenty mile journeys at a more or less constant 50-60mph. I'm not harsh on the throttle and ride quite conservatively. Certainly compared to most bikers on the road I ride on! I'm only 168 lbs. Tyre pressures are OK and I use standard unleaded. I didn't buy the bike for economy but to enjoy riding, but when I read that seventy mpg is achievable it does make me wonder.

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There is something wrong for sure, I also get 20K/litre so 200 on a full tank, 160 on the main and 40 on the reserve

that's with 14/52 gearing, don't spend much time on the road though

Steve



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I obtained my 2000 TTR in August 2010. aww

To date, since getting it, I have clocked up nearly 5,521 miles and have filled the tank up with 80 gallons. smile

That works out at a tad over 69 miles per gallon average.

I guess that half of those miles have been on tarmacadam. confuse

She runs 14/52 sprockets and Pirelli MT43 rear - Michelin Enduro Comp IV front (Both around 15psi)

I have a detailed spreadsheet of its history with every penny spent, every repair/service done, every gallon bought and every mile covered. yawn

I am extermely happy and pleased with every aspect of my TTR.

Martyn



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I never record my milage but im very pleased with my ttrs fuel consumption ,it has 13/52 gearing 152-50 jets with airbox chopped and fmf pipe ,i only ride off road and if its been wet we do some very sticky boggy stuff

I find i can fly about for 5-6 hours in the woods and on the hills on around 5-6 litres ,thats about half what my mates yz 250 does on the same ride ,infact i stopped putting spare fuel in the van as i never need it biggrin

 

The mods ive done have transformed the bike offroad and i like cubber am very pleased with the bike and it will be doing its first hare and hounds event on 7th june



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Hi Dave

I am wondering if your higher fuel consumption has anything to do with your mechanic having raised the carb needle which may be making the TTR run a little rich?

Brian



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TTRfan wrote:

Hi Dave

I am wondering if your higher fuel consumption has anything to do with your mechanic having raised the carb needle which may be making the TTR run a little rich?

Brian


 Could be, Brian. I was getting exactly the same figures before he raised it though? 

Are there any others tells that the bike is running rich? 

Any ideas about why the consumption is not what it could be? 

The bike runs very well apart from that. 

 



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BM Steve wrote:

There is something wrong for sure, I also get 20K/litre so 200 on a full tank, 160 on the main and 40 on the reserve

that's with 14/52 gearing, don't spend much time on the road though

Steve


 Is that 160 km, Steve? If so, that's the same as me then. 99 miles to the end of main tank is 160km. Definitely getting nowhere near 70mpg though. 



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Yes that's 160km on the main tank, now I look at it it could have meant main jet ?

And yes 40km on the reserve tank

Steve



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Yep, 90% off road gets me around 95 miles out of my 2005 TTR before reserve.

Edited - I meant miles!



-- Edited by Flying Dodo on Sunday 18th of May 2014 08:26:43 AM

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I work on 120ks on the main when planning a ride , but I usually get closer to 160ks before needing reserve (100% dirt riding )

I was only getting 110--120 before reserve on sealed roads until I opened up the airbox now get the same result for on and off road . the poor thing was always on full throttle on road and with the slight restriction from the air box  fuel consumption suffered , once the air box mod was done there is less need for full throttle and I can feel it breathing better .



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On the last tank then I got 96 miles from the main tank then rode another few miles on reserve. I filled up and the bike took 7.55litres. Looking at the service manual and owners manual they state that the bike holds 10litres main/2litres reserve and 9.5litres main/2 litres reserve respectively. If I take it that my main tank has 9.5 litres then it shuts off with 2 litres left in the main tank?

I've kept my till receipt with amount filled and will do so for the next few tanks. It may be that I've actually got 100 miles from 7.5 litres approximately. Which would mean if I had 9 litres (more or less two gallons) I'd get 120miles. 60 mpg. I'm getting there...lol.

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ttr250 fuel range
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what sort of fuel economy do you get and do have you modified anything to get better economy 



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Maybe you should have bought a 50cc scooter..

or put a bigger tank on it if more range is what you are after...



-- Edited by petenz on Sunday 24th of May 2015 05:00:01 AM

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I get around 50 mpg, but have lowered gearing and that includes a good proportion of off road use. I get over 100 miles on a Raid tank. A friend with a Serow pottering about on the road gets over 75 mpg... But i have more fun.

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All i know is i get about 70 miles to reserve. I'm happy at that.

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i really have no idea what I get.... only do a max of 50km between
fueling stops.... but it spends a good part of that 50km in the top 25% of
the rev range... It can empty the tank pretty quickly...



.

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I just rode a 1897 km trip, half on roads, half on trails and VERY crappy roads. I calculated the fuel consumption, and it is 3.21 liters/100 km.
The TTR is a very efficient bike :)


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Yeah thats very good going!!

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locky wrote:

All i know is i get about 70 miles to reserve. I'm happy at that.


 Thats what I get too.

Maybe now that the snorkel is out and airbox inlet is about to be modded if necessary things will improve.

K&N air filter and very loud OE silencer, which I now think has been tampered with. My previous TTR was much quieterbiggrin



-- Edited by Clutha on Saturday 4th of July 2015 08:02:30 PM

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Since doing my airbox, rejet and silencer the mpg seems the same, i still get 70 or just over to reserve..

 

Clutha, be careful using a K&N filter for off road, airflow is good but filtration is poor. Oiled foam is the best for off road.



-- Edited by locky on Saturday 4th of July 2015 08:38:24 PM

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My ttr also does around 75-80 miles before running out of fuel and grinding to a Holt. The downgearing defo burns it away. Plus all the weight that comes from being a gurt oaf. Yeah my mates serow also seems to do a million miles to a gallon, he can Greenlane all day for a fiver in fuel!

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all the mods running 13/48 gearing  i get about 70 miles on the open road  a full day in the bush i can stretch it to 100 miles with some short shifting and responsable throtle control 

due to the distances between fuel some times one has to master eco riding biggrinbiggrin



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TheWizardofOdds wrote:

On the last tank then I got 96 miles from the main tank then rode another few miles on reserve. I filled up and the bike took 7.55litres. Looking at the service manual and owners manual they state that the bike holds 10litres main/2litres reserve and 9.5litres main/2 litres reserve respectively. If I take it that my main tank has 9.5 litres then it shuts off with 2 litres left in the main tank?

I've kept my till receipt with amount filled and will do so for the next few tanks. It may be that I've actually got 100 miles from 7.5 litres approximately. Which would mean if I had 9 litres (more or less two gallons) I'd get 120miles. 60 mpg. I'm getting there...lol.


My brother just filled up his metal tank from reserve and it took 7.35 litres so very similar main tank capacity to the plastic tanks.

Brian



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Im getting 180km before hitting reserve with mainly off road riding 

standard main jet up one size on the pilot stanadrd needle light, staintune exhaust and top of airbox opened up 

struggled with fuel range utill i opened up the top of the air box,  curently lookiing at acbris bar tank or a nomad tail tank to increse range as fuel stops can be a bit spread out 



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Mine is not quite as good as that. 170 -180 on road before hitting reserve is pretty normal. Prob closer to 150 offroad.

52 Pilot jet and Standard main and clip one notch down on the needle.

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I have 48 and 142 jets.

I did 2000km trip last week through forests, sandy, gravel roads. I mostly was pushing hard i.e. full throttle.

The least reserve I hit was 115km (full tank 10l, reserve 2l). So, it is 6.9l/100km. I would say quite a lot for 250cc:)

Average consumption was about 6l/100km. During trip changed air filter once.

 



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