the DR650 thread

Discussion in 'Thumpers' started by sleepywombat, May 1, 2006.

  1. Nogoodnamesleft

    Nogoodnamesleft Long timer

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    :hmmmmm.. hmm..
    i know..
    ROAD TRIP..!!
    we could ride to japan..

    made from icebergs and seaweed and flowers.
    i bet it tastes just as delicious as @cyberdos regular blue fizzy..

    <untitled> (20).jpg

    Nobade likes this.
  2. JRowland

    JRowland Been here awhile Supporter

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    gpfan likes this.
  3. NC Rick

    NC Rick Cogent Dynamics Inc

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    I’ll send you one for shipping. It has a smallish dent from my knee.
    kbuckey, Sonny S., MikeFromMT and 5 others like this.
  4. Jimr80gs

    Jimr80gs Been here awhile

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    Rick, thanks. PM sent.

    Jim
  5. drmiller100

    drmiller100 Long timer

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    I am NOT overtightening it. a bit loose? probably. not ignorantly loose though.
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  6. Nogoodnamesleft

    Nogoodnamesleft Long timer

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    i think it's a little bit of column a, and a little bit of column b
    the combo effect. minute stretch and wear adding to each other causing stretch and slop, due to design.
    a little bit like if you have a length of steel strap then bend it, then straighten it, it can become marginally thinner on the bend points and thus minutely longer when straightened - the side plates in a chain. wear on steel also makes it thinner and easier to stretch under load forces. then add pin wear.

    sort of like timing chains, belts and solid gear drives.
    if you have over spec run out say from the crank and you can't run solid safely,
    not efficient / safe for direct drive set ups, then there's belts and double rows for the lesser spec or simply for design and cost.
    run out to me, is a bit like but not the cush hub rear wear and slop and then the front sprocket play on the spline,
    both combined with the slow variables of wear caused on the chain by minute slow flex to stretch over time,
    due to the length of the chain between sprockets and induced side loading due to drive and weight.

    but don't pay any attention to me.
    i can't even remember the last time i lubed my DR's chain..
    it could be 3 years and about 12k.. dunno..

    i'm just cranky because i found my GPS phone, and it no longer works..
    looks like it may or may not have been dropped..
    someone needs to un-invent the word "update".. stupid new phones.
    at least i found my paper maps.
    Hivernaut, drmiller100 and Mongle like this.
  7. Pastapete

    Pastapete Adventurer

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  8. drhippie2

    drhippie2 Adventurer

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    Coldwater, MI
    Got two blue tanks both with light scratches.. willing to part with for low $$$..
    04 and 05 graphics....
    PM me if needed...
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  9. Mongle

    Mongle Knuckle dragger

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    20+k on my chain. Mine is so loose I still have the upper roller...intact. :D. I can take the small sprocket off without loosening the axle.

    I feel the DR chain geometry isn't great and looser is better. Manual specs need multiplied by 3 or 4...
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  10. drmiller100

    drmiller100 Long timer

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    Well hell. Your 520 ek chain got about identical miles I've been getting. I am fatter than most, and probably ride harder than most. Never cleaned a chain in my life.

    Looks like I'll run a vx2.

    what is the difference between did vx2 and did GOLD vx2? EDIT: one is gold colored, one is natural. I asked my scooter and it didn't indicate it cared.

    any negatives to a 525 on 520 rear sprocket?
  11. BergDonk

    BergDonk Old Enough to Know Better

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    Have you actually measured sideplates that have got longer over time? Seems a 'stretch' to me that they do :D


    Others have done it, I've always run the right width sprocket for the chain. It might move about enough to interact with the chain guide, dunno.

    I was disappointed with the life of the EK SRX chain. I got, I think, 3 at the time. One is on my wife's KLX300 which doesn't get the flogging, or travel the distance other bikes in the fleet do, and its OK so far, but < 2k kms only.

    There was a clear out of 520 VX2 chains here a while back and I think I got 6, they were less than half price. It doesn't take long for the gold ones to look much the same as the natural ones on my DR, so much of a muchness.
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  12. amp333

    amp333 Life is short enjoy!

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    I've got a 2000 tank and can send you pics if you want. All I'm looking for is shipping as well. I'm in New Mexico for my dad's 90th birthday so it would be next week.
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  13. Mongle

    Mongle Knuckle dragger

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    True. Hard to believe there is enough wear in the pins alone to "elongate" the chain enough to be measurable.

    Was just a thought.

    I know a new timing chain will "stretch" enough to retard cam timing 1-2 degrees during the first run in. Then it seems to take a set and not move for many thousands of miles. I can't say exactly where said "stretch" occurs because I have never tried measuring the chain. Nothing can be done about it (unless you step up to a timing belt) so I just plan for it.
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  14. kezzajohnson

    kezzajohnson kezza

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    Nope, I have been on that combo (525 chain on 520 rear sprocket) for a while now, mostly because I couldn't get a 46 tooth in a 525 (18 inch rear wheel) - no signs of anything untoward.
  15. AlH

    AlH Long timer

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    What is interesting too is the spot we stopped is the middle of the tunnel route as the crow flies. The tunnel is a straight line to that point from the lake then jogs west a little then gets a few curves before the powerhouse so it isn't exactly the midpoint inside it. tunnelmidpoint.JPG

    Plot of our ride and line drawn on Topo North America. A great product that Garmin killed when they bought Delorme.

    Actual complete tunnel route on the 1938 map

    tunnelmidpointoldmap.JPG
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  16. boulet_boulet

    boulet_boulet Been here awhile

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    The foliage is stunning up here in Maine right now. Here is a nice shot that @Grinnin took of me on a ride yesterday.
    Oct13.JPG
  17. Rusty Rocket

    Rusty Rocket Life behind "Bars"

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    squa.jpg
    I've seen them in the area. Paint Creek area in TN (just over the hill from the gated hole in the dam)
  18. 805gregg

    805gregg Long timer

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    Go back to a 525 and get a DID ZVM-X chain, 520 is what Suzuki puts on the DR200
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  19. adam728

    adam728 Long timer

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    520 is also on a 50+ hp RMZ450.
  20. Jimr80gs

    Jimr80gs Been here awhile

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    Thanks. Already called Rick before I saw this post.

    This is a great group!
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