Honda CRF500L Owners

Discussion in 'Japanese polycylindered adventure bikes' started by Scutty, Apr 16, 2017.

  1. J_B

    J_B Mid-life Crisis

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    What's the largest tank I can buy for a Crf250l - I am replacing g a Ktm 625 with a 28l safari.

    I can only seem to find one around 11.5L which is still a big light on , I have found the camel rear tank with 6L but would love something around the 20L (5gal ) .

    I know the cb500 engine has a low consumption but need a min of 450km range in Australia and 800kms for the big trips
  2. OHjim

    OHjim Long timer

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    500 mile range? At 60mpg that's a bit around 8.3 gallons (32L). That's a lot of fuel to carry in one tank for such a small bike. :scratch
  3. michaelkozera

    michaelkozera Long timer

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    im averaging right around 3L/100km (80mpg) on my crf500L.
    i use the aercibs 12.5L tank and it hold roughly 12.45L (this tank seams to vary greatly in size as some have reported it holds as little as 12L so i donno????) i also carry a small 2.7L AUX tank om my back seat in case of emergency.

    so 3l/100km with 12.45L = 415km + 90km aux range.

    on the highway im consistently doing 2.5L/100km(94mpg) so 500km+ is possible



    however a few things to consider.

    my engine is bone stock, i run 25psi+ in tyres, im geared very tall, using a 42T rear+ stock 15t front+ largest rear tire i could fit,i run full synthetic, and at 344.4lb's my bike is 90lb's lighter then the cbr500r this engine came out of.



    when it comes to fuel range its a crap shoot, feully reports 3.6l/100km (65mpg) average for the cbr500r/cb500x, while i have ridden my friends cb500x and im getting 3l/100km or better consistently.

    so only real way you will find out is if you either buy a cb500x and test it urself, or build the crf500L then see what u burn.


    all measurements i do is off the pump / gps, not onboard computer.
    rrrnnn likes this.
  4. Samtech79

    Samtech79 Two wheeled lunatic

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    Honestly I don't see it happening. On pavement I can get 66mpg if I don't drill it. That's all of about a 200 mile range.
    In sand it drops out the bottom... to get a 500 mile range you're gonna have to carry at least 8 US gallons and be keeping the speed way down.
  5. J_B

    J_B Mid-life Crisis

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    I will give safari tanks in Australia a call tomorrow to see if they have any plans ?

    20L in the front tank would be a nice start.

    The dr650 is the desert sled of choice in Australia and safari do a 32L tank , my aim is to produce something like the ktm640 adventure which had a 30L tank.
  6. flipflopdog

    flipflopdog Youth & Talent, no match 4 Old Age & Treachary

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    Gents, what is the exact internal bore diameter of the exhausts headers please...???

    Frame stripped bare, tubes cut and offered up to engine, luckily we managed to get the sprocket position bang on the height position and only 10mm forward of original. My frame guy has come up with a unique solution for the rear engine mount aspect. its looking good guys so far, pics to follow..!!
    michaelkozera and KayDubbya like this.
  7. michaelkozera

    michaelkozera Long timer

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    I have to take a video or something. I refuse to believe that ur crf500l gets only 66mpg
  8. michaelkozera

    michaelkozera Long timer

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    30l!!! Only cow.

    Anything more then 15l would make the bike too heavy.

    Remeber that fuel weight is dynamic weight. The worst kind of weight. Not only that but 30l that would make my 344.4lb crf500l weigh in at over 380lbs fully fuelled. At that point the bike would be too heavy IMO.

    The way I see it, the crf500l primary appeal is its low weight compared to the larger adventure bikes.


    Pics or it didn't happen lol
  9. flipflopdog

    flipflopdog Youth & Talent, no match 4 Old Age & Treachary

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    Exhaust headers ID bore size....???
  10. J_B

    J_B Mid-life Crisis

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    my last 2 big rides within Australia had 800kms between fuel stops and any communities and carried 48L in total fuel.
    At least the CB500 engine has better fuel consumption as my ktm625 was chewing 6L/100kms

    may need to build a rear tank
    Te Hopo likes this.
  11. michaelkozera

    michaelkozera Long timer

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    I totally understand.

    I had a ktm 690 Enduro r. It too burnt around 5-6L/100km even with my very efficient riding, which is inane!! This was in fact one of the main reasons I sold it. I was hauling too much feul to get anywhere.

    Not to mention the 690 needed premium while the 500 twin needs only regular. Saves u 20% on feul right there.
  12. flipflopdog

    flipflopdog Youth & Talent, no match 4 Old Age & Treachary

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    Gents, the raised profile on the back of the TB's, when you made a new take off plate how did you seal the joint..?? Did you grind off this lip and use gasket..?? IMG_6939.JPG
  13. michaelkozera

    michaelkozera Long timer

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    i used the original CBR500r air box plastic, which i cut to attach the plastic to the crf250l air box, i plastic welded the two air boxes together.
    flipflopdog and Te Hopo like this.
  14. J_B

    J_B Mid-life Crisis

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    My engine has arrived and I am trying to put together all the bits so I a can work through the project continuously.

    I read where I need a second harness to extend some of the cable lengths , which ones in particular need extending and do I need a full harness ?
  15. Samtech79

    Samtech79 Two wheeled lunatic

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    I hot pressed a piece of kydex.
    IMG_8113.JPG
    flipflopdog likes this.
  16. Samtech79

    Samtech79 Two wheeled lunatic

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    A second one will really help. Andy gave this part of the project a very fitting name...
    The Loom of Doom! Mahahaaaa! (Evil laugh)
  17. flipflopdog

    flipflopdog Youth & Talent, no match 4 Old Age & Treachary

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    Looks like were going for a forth option. We will remove the lip and use a gasket and therefor pick up two extra fixing holes, drill and tap the blank ones opposite top two. Levi, the Kydex way looks very secure just we don't have any to source kicking around.. While your on here, does 30mm for the Internal Diameter sound about right for the exhaust..??
  18. Samtech79

    Samtech79 Two wheeled lunatic

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    Kydex is cheap, just buy some off eBay. Any thermoform plastic will work. Heat it on a large steel plate, leave it on the plate and use a hydraulic press to push the throttle body down onto the plastic and leave it for an hour to cool off. It's really easy.
    I think mine are 35mm ID.
  19. flipflopdog

    flipflopdog Youth & Talent, no match 4 Old Age & Treachary

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    Hi Levi, this is pretty important I believe about the ID bore and its relation to the torque curve etc. I had the guy from the dismantlers go spec the original Honda headers and he quoted me 30mm. We are about to order some 316 tube and bends and the size available had 32mm bore so we are there or abouts. Might hold fire on the order until I can get some more input, anyone..????

    While i'm on here, anyone got any CB5 porn shots of the open sump..??? Square on or side shots..?? Going your route Levi with twin pipes and modded sump, I'd like to get this aspect bang on the money and noted your modding your sump again, is that to get the capacity up to around standard spec...??
  20. Samtech79

    Samtech79 Two wheeled lunatic

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    Shit sorry... exhaust... my intake is the 35 ID. Exhaust on mine is 1.125" ID but it's a smidge undersized. I'm going to build a whole new system that I've worked out all the math on and will use 1.38" 16g. Works out to 31.75mm ID. 32mm ID will be fine.
    flipflopdog likes this.