the DR650 thread

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

  1. Magnum Noel

    Magnum Noel Been here awhile

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    Wellington NZ
    Quote:- So yeah.. now instead of riding tomorrow, I get to deal with wiring crap.
    Thats a bummer:puke1
  2. ER70S-2

    ER70S-2 Long timer

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    BTDT :puke1
  3. Obard

    Obard Adventurer

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    Ok, so putting the timing mark in the center of the inspection hole isn't exactly enough, right? I think what I am missing, is ensuring that it's tdc on the compression stroke. Please pardon my lack of knowledge, but, how do I know if it's the compression stroke?
  4. ER70S-2

    ER70S-2 Long timer

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    After cleaning out the recess around the spark plugs thoroughly, remove the outer plug. Stick a straw into the hole, rotate the engine slowly (ccw) while wiggling the straw so it doesn't bind on the piston as it rises in the bore. At this TDC, wiggle the rocker arms (side to side, as you're unlikely to feel the small valve clearance with the oil cushioning it), if they're loose that's the TDC you want. Rotate the engine another 360* (straw at full extension again) and wiggle the rocker arms again, they should not wiggle, this is the wrong TDC. Do this two or three times until you're sure when the rockers are tight and when they're loose. Adjust the valves when both rockers are loose. Exact TDC (mark in the window), isn't necessary, as the valves are closed for many degrees on both sides of TDC.

    Once you feel it, you're set for life. :freaky
  5. nzrian

    nzrian Been here awhile

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    i would be keen on a thread for this.
    good luck with it.
  6. BergDonk

    BergDonk Old Enough to Know Better

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    Here is how I do it, FWIW:
    http://www.advrider.com/forums/showpost.php?p=20354112&postcount=371
  7. DockingPilot

    DockingPilot Hooked Up and Hard Over

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    The rockers will feel slightly loose at TDC. You should have a very small amount of play. If they are tight, your not on TDC.
  8. Obard

    Obard Adventurer

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    Well I'm going to give it hell today. Thanks for all the helpful hints. Good news is I'm getting really quick at taking everything off and on. I've been trying to get these darn valves adjusted for months now. I think I'm getting close with last bit of info here on locating tdc(c).
  9. Albie

    Albie Kool Aid poisoner

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    Even better, with more familiarity you can consider tackling the blue smoke issue. It's probably nothing more then the valve seals which are cheap, but you will need a valve compressor tool which can be bought for less then $50. So for less then $100 you could fix the problem.
  10. imprezagm4

    imprezagm4 Been here awhile

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    Bend, OR
    Got it done yesterday evening. Just had to slide the boot down to get a better grip. It really helped having the weight off the front wheel but it wasn't fun wrestling the beast to the ground...

    I'm definitely aware I didn't do it the way the manual says, now that I know how to do it, I can reverse it in a few minutes... so we will see how it goes.

    Thanks for all the tips
  11. Obard

    Obard Adventurer

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    Do I have to yank the engine out to work on the valve seals? Nevermind don't tell me yet, we'll get there soon as I get the valves adjusted right.
  12. acesandeights

    acesandeights Asperger

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    The manual says it shortens the overall length, not just the travel. So you get 1.6" of ride height difference just between the two holes? The two holes are only about 5/8" apart. So, where's the other 1" come from? Not arguing here, just trying to learn. Holding the parts in my hands and looking at them, it looks like you'd limit travel and length by flipping the spring seat.
  13. procycle

    procycle Long timer

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    The amount it's lowered is measured at the rear axle so the length of the swingarm is where most of the additional inch comes from. Also there is the geometry of the shock linkage.

    Flipping the stock spring seat only limits the travel but does also move the location of the spring on the shock body.
  14. acesandeights

    acesandeights Asperger

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    So, if you don't flip the spring seat, only move the bolt from the bottom to top hole in the clevis, the result is the same amount of lowering, 1.6" ?
  15. procycle

    procycle Long timer

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    Yes, same amount of lowering.
  16. acesandeights

    acesandeights Asperger

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    Thanks.
  17. Rumlover

    Rumlover Ed

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    Utah
    Yes, like Procycle said the lowering is the same regardless if you flip the spring seat or not. But you will risk the tire hitting the fender (or possibly other components hitting) if you don't limit the travel by flipping the spring seat which raises the bump stop to limit shock travel.
    Remember the spring has to also be moved up the shock body (per the manual) when you flip the spring seat.

    Personally (although I haven't done any measurements) I think the prelaod settings Suzuki states in the manual also play into their 1.6" claim. In other words you would have to adjust to their lowest preload setting to achieve the maximum height reduction.

    :freaky
  18. martinfishlog

    martinfishlog martinfishlog

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    [​IMG]

    New running lights
  19. acesandeights

    acesandeights Asperger

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    They do.
  20. Obard

    Obard Adventurer

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    Jan 25, 2013
    Oddometer:
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    Kapowsin, Washington
    Went out this afternoon to give it hell, and finish the valve adjustment I've been trying to complete for months. Well ... I figured out what the clanging and rattling was. The bike swallowed the lock nut and the adjusting screw off of the rocker arm. Now all I have to do is load up the bike and get it over to the bike shop down the road. Live and learn ... The hard way.

    Awe who am I kidding, I'm to cheap to take it anywhere, guess I'll see what the engine inards look like. Hope ya'll don't mind the onslaught of questions I'm likely to be asking.