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Post by arlo33 on Jul 11, 2008 10:39:16 GMT -5
Actually thats 54 MPG not so good after all!
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Post by jaz66 on Jul 11, 2008 12:08:47 GMT -5
Hi Been following this one, so here is my input 97 NTV 650 (palm sized dent in tank, Filled in.. ) Filled tank up, on centre stand (not too Scientifically, just poured to the top and stopped) Bike gets used with a variety of speed and roads. bike for commute to work (15 minute run in traffic top speed 40mph) and a bit of a blast on the motorway some evenings. Bike saw 180 miles before switching to reserve... (Filled up soon after so no idea how far reserve would take me) N.B. Bike has no 2nd gear, so not sure how much effect that will have on mpg. jaz.
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Post by jaz66 on Jul 11, 2008 14:30:43 GMT -5
Hi
Just a note about tank range
If my working out is right Tank holds 19 litres (4.179 Gallons) with 2.5L (0.54 Gallons) in reserve. One gallon = 4.546 Litres
So if bike is returning X mpg you should be able to travel....
Tank range @ mpg / per Litre
MPG / Per LITRE 45 mpg / 9.89 Miles per Litre = 187 (Inc Reserve) 50 mpg / 10.99 Miles per Litre = 208 (Inc Reserve) 55 mpg / 12.09 Miles per Litre = 245 (Inc Reserve) 60 mpg / 13.19 Miles per Litre = 250 (Inc Reserve) 65 mpg / 14.28 Miles per Litre = 271 (Inc Reserve) 70 mpg / 15.38 Miles per Litre = 292 (Inc Reserve) 75 mpg / 16.49 Miles per Litre = 313 (Inc Reserve) 80 mpg / 17.59 Miles per Litre = 334 (Inc Reserve)
hth Jaz
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Post by buzzin on Jul 11, 2008 22:02:14 GMT -5
Ok, let me fire up my math bits: Currently, with bad carb setting and a sticky choke leaver I do roughly 1:15 ( l : KM) that's 15/1.602 = 9.36 Miles per Litre. That comes to 42.5 MPG Yikes, that's bad.... time to call the garage to fix the bl**dy carbs..... And get that choke cable fixed.... I have heard of people running it at 1 : 20 (56.7 MPG) here....so that should be doable for me
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micawber
Full Member
40 years on the road and still in the dark.
Posts: 52
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Post by micawber on Jul 12, 2008 16:32:03 GMT -5
Hi jazz66! I see that you have put up some figures for mpg from full to walking. I have taken the liberty of using your figures to give tank range from full to reserve. I like walking but not while pushing a monstously heavy motorcycle. Illegalalien suggested that using a smaller section front tyre could give misleadingly higher distance readings per tankful. I've looked into this (110/80 Bridgestone Exedra on my NTV), possible shortened tap standpipe giving more than standard range before reserve -not so, I recently filled up from reserve with 16.5 litres as per manual. Derbyshirebill posted that he'd got a phenomenal 80 mpg on an extremely leisurely run. So using your figures, seems that 60 mpg is within the normal range for an NTV, without trying too hard to economise. I am using 16.5 litres as the figure for main tank capacity, and have rounded up or down as necessary (when there have been several decimal places).
45 mpg/9.89 miles/litre =163.2 milesto reserve 50 mpg/10.99 miles/litre =181.3 miles to reserve 55 mpg/12.09 miles/litre =199.5 miles to reserve 60 mpg/13.19 miles/litre =217.6 miles to reserve 65 mpg/14.28 miles/litre =235.6 miles to reserve 70 mpg/15.38 miles/litre =253.8 miles to reserve 75 mpg/16.49 miles/litre =272.1 miles to reserve 80 mpg/17.59 miles/litre =290.2 miles to reserve
I am reluctant to go too far on reserve not only because of running out of petrol but because there is probably 15 years' worth of rust flakes, old paint, and who knows what other horrors lurking in the bottom of that tank. Which leads to cleaning carbs, upsetting settings and all sorts of other unintended consequences. If it ain't broke, don't fix it, and if possible, don't let it get broke in the first place! My NTV tank has a few minor dents in its top but obviously doesn't affect its capacity. With some bikes I have owned, the tank capacity was not all usable -either due to the shape of the tank or the position of the petrol tap. It was maddening in those instances to hear some fuel sloshing about in the bottom as I wearily pushed to a petrol station. So I am glad to hear that it is possible to get up to 35 miles on reserve in an emergency. This thread keeps on going -is it due to the recent increases in oil prices or is the NTV/Revere the type of bike that attracts those obsessed with running costs?
Micawber
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Post by jaz66 on Jul 12, 2008 19:17:11 GMT -5
Please feel free to use figures, I like to be able to 'see' what people are talking about. And while we are talking about bike weight there are at least two of us who know EXACTLY what you mean, ain't there roger.. Have to agree with you there, altho vaguely remember seeing a suggestion that turning onto reserve WAS a good idea before you needed to (ie a full tank) as it cleared out the debris. Guess the pressure from the volume of petrol was higher, but still the crap has to go somewhere?? this bike attracts sensible people because.... It is a good bike at a reasonable price.... and while it won't win any beauty prizes.... or be the fastest from the lights... it is pound (£) for pound excellent value..... just nice to have something to boast about when meeting up with other bikers. My bike cost buttons, it easily does a 100 mph + and it keeps up with some pretty racey bikes, even tho it is not fully run in until 90 K.. AND it returns 60mpg + to boot. PLUS it has some of the most helpful owners AND the the BEST owners forum on the NET........ ;D Enjoy & ride safe jaz
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Post by honda on Jul 13, 2008 17:32:16 GMT -5
I aggree with all the above figures. I think that the best way to do this is to fill up with the bike sitting at the same attitude every time eg side or center stand which ever but use one only. Set your trip meter, dont worry about reserve, just ride the thing. Fill up each time and note the miles and how many ltrs it took to fill it to a similar level each time. After a few fills you will know how its doin. I have everything from 50 to 72 mpg. Mine can do ok provided I do not do those wee quick nips up through the gears. Done it this eve again. Couldnt resist it. "Closed road!" You know the type with two lanes, nothing coming the other way and no cross roads or junctions on them. Good for the spirit but not the pocket.
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Post by everydaybiker on Jul 14, 2008 17:41:50 GMT -5
Yep, that's what I do every day, just use the trip meter. Today I went on to reserve at 192 miles and continued another 33 miles on reserve to get home. This was mostly motorway between 70-80mph but thankfully it didn't splutter and die before getting home!
Personally, at 60mpg, which is what I usually get, I wouldn't bank on any more total range than what I saw today (225 miles). It was pretty empty and there's always something left in the tank that you can't use anyway.
My spare bike also went on to reserve at the same miles when I bought it and rode it home a couple of weeks ago.
Derek
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