Africa Twin owners thread!

Discussion in 'Australia' started by Sand Goanna, Feb 1, 2016.

  1. 1coolbanana

    1coolbanana Long timer

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    Now now Wodger, theres no place here for a bloke like you that knows what theyre talking about....off you go back to the orange side of life :lol3
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  2. leethal

    leethal 3 wheel Monarch #37

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    Wodger, you had me completely agreeing with you up until the " it will only run rich"........octane rating has nothing to do with mixture.
    Here in Melbourne, the E10 pumps have all but disappeared thankfully........ethanol does screw with mixture.
  3. SkipD

    SkipD That looks stickey

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    Maybe you missed the memo on E10 in QLD
    Posted 2 Dec 2015, 10:26amWed 2 Dec 2015, 10:26am
    Ethanol-blended E10 fuel will have to make up at least 30 per cent of petrol available for sale in Queensland from January 2017.
    Queensland Parliament last night passed laws introducing an initial 3 per cent ethanol mandate for regular petrol and half a per cent for bio-based diesel from that date.

    There is not a gas station anywhere around here that does not have E10 in 91 and a number that have E10 in 91 95 and 98 non of it is purple.

    Some info from BP saying their fuel (pump gas 91/95/98) does have the same energy per kg, interestingly they say you can run the lower octane slightly leaner. The AT tries to run the AFR at 14.7 through most of the mapping and thats what BP says is optimal for 91 and 91E10
    http://www.bp.com/content/dam/bp-country/en_au/media/fuel-news/fuel-octane-power.pdf

    And this message from Biofuels AU (trust us)
    Ethanol and Corrosion
    In the past, ethanol has been attacked for being corrosive and for damaging fuel system components. However, all types of petroleum products have corrosive properties and oil companies are required by law to add corrosion inhibitors not only to ethanol-blended fuels but also to other petroleum products. Corrosion inhibitors are fuel additives that inhibit or suppress the corrosive properties of fuel, thereby preventing the corrosion or rusting of the fuel tank as well as the other components of the fuel system.
    Provided your ethanol blended fuel is purchased from a reputable source, there is no potential for erosion. This is because the ethanol sold in Australia must – by law – contain a corrosion inhibitor additive to overcome previous issues of improper use of lower quality ethanol or at inappropriate blends without the corrosion inhibitor
  4. 1coolbanana

    1coolbanana Long timer

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    :snore
    .
    .
    .

    :lol3
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  5. Wodger63

    Wodger63 Long timer

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    Love it when an expert speaks, thanks for the clarification.
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  6. Dakar Dan

    Dakar Dan Long timer

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    Anything to do with the cane growers' lobby by any chance??
  7. Big Willy

    Big Willy Gen. Italia

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    Well if I've learnt anything here it's that there's a good chance there is ethanol in 91.

    I'll just continue to use 95 (Vortex is my preferred)

    Some pumps I come to only have 91 or 98. Call it paranoia but I'll put in the 98 and avoid 91 like the plague
    robmoto and 1coolbanana like this.
  8. Squily

    Squily Squily

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    I don't buy into the 'clean your engine' hype. But I do believe in solid data. I can see in my wife's car when she switches to low octane (91) as the fuel consumption goes up. Then it's a "I see you're using 91 again dear - please don't". Same as I could see it in the DL's consumption.

    As for the AT - averaging my fuel consumption for when I used 91 - 18.6km/l. Average for 95/98 - 18.5km/l (I can post the logs if anyone is interested, but the high octane vs. low octane ratios are 70:12)

    As for previous comments on the jetting of my XR- the problem is not jetting. It's detonation. When a motor starts cutting out in the heat at a 100km/h with low octane fuel and it pings - that ain't jetting.

    In most 1st world countries, you can't even buy 91 at an altitude of less than 1200m ASL. Yet here its sold at sealevel and lets not talk about the Opal crap.

    Do I have a problem with 91? No - I use it in my lawnmower, my VS Commodore ute etc.

    So do I save money by using 95+? Probably not, but peace-of-mind it does.
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  9. XRman

    XRman Long timer

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    Forget about the bike! I don't run too well over 40 degrees either.
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  10. leethal

    leethal 3 wheel Monarch #37

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    Not a great difference in heat energy betwee 91 - 98 but it does exist. The 'extra' refining of 95/98 is to add octane boosters and cleaners, or in the case of e10......ethanol.
    Calorific value of Ethanol is approx. 25% less than standard 91, so when you mix it with 91 you lower the heat energy in a litre by approx. 2.5% Same goes for adding octane boosters and cleaners....they displace fuel, so less energy per litre.
    None of us should get too hung up about the fuels other than two things..
    The cleaners added to the higher octane fuels are a good thing.
    Detonation due to low octane rating is a really really bad thing.

    No need feeding strawberries to pigs, but occasionaly, a bottle of Mumm will get you a better ride than a beer will.
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  11. DRjoe

    DRjoe Long timer

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    One more thing to note about people getting better fuel economy with premium is modern cars (and some bikes) will adjust there fuelling and timing to stop detonation if they've been fed a lower octane rated fuel than there designed to use.

    This will effect the fuel millage a shit ton more than any calorific difference the fuel may have.


    As others have mentioned the octane rating of fuel is a rating of how stable the fuel is and not how much energy the fuel has.

    Higher octane fuels are more stable and can cope with higher compresion and heat without igniting before the spark plug has fired
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  12. Big Willy

    Big Willy Gen. Italia

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    So you're saying that a high performance motor designed to run on 98 will chew the juice if it is run on 91? (funny expression lol)

    Which raises an interesting question...

    Is a vehicle that is tuned for more power but has to run on 98 cheaper to run than an equivalent vehicle of similar weight and displacement with a detuned motor running on 91?

    And what are these octane booster composed of now that good ol' lead is no longer used?

    Aviation fuel has long been known to be 100 octane. Do aeroplane motors have seriously high compression?
  13. LivingdeadCamo

    LivingdeadCamo Been here awhile

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    Any chance anyone can stick some decent pics of their AT up?

    Also looking at Tekniks website and saw they now have 4 options for the suspenders... the 4th being Ohlins front and rear at $4k.
    Anyone running that?
  14. DRjoe

    DRjoe Long timer

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    Not all efi systems will act that way.
    Its very common in cars and boats but not so much in bikes.

    Does the africa twin have a nock sensor?

    If it does then it should be able to adjust its fueling and timing to stop the motor nocking when your being a tight arse and filling it with a lower octane fuel than its desined for.
  15. Big Willy

    Big Willy Gen. Italia

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    Hmmm...not sure if it does or not.
    Read something about a low voltage being passed between the electrodes of the spark plug to detect knocking and that was on a 90's Saab!
  16. ferals5

    ferals5 Team black bikes

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    Not sayin I'm detuned :kat but the red AT in the pic I posted on the previous page consistently beat my tiger on fuel economy...but I consistently beat him when we stood at the counter with cash in hand :wink:
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  17. ozimick

    ozimick destination unknown

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    Jeezuz thats a whole load of dribble and popycock cluttering up the AT thread aye..........

    [​IMG]
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  18. Big Willy

    Big Willy Gen. Italia

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    Wow. A bike parked on some sand
  19. seancampbell

    seancampbell Been here awhile

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    Screenshot_2017-09-19-20-48-26.png

    From Sundays ride
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  20. seancampbell

    seancampbell Been here awhile

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    20170919_202325.jpg

    These turned up in the post today.

    Hopefully the end of my sore wrists on longer rides.