the DR650 thread

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

  1. Fire Escape

    Fire Escape Long timer

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    Would rolling the front wheel onto a piece of 2xXX lumber get you high enough? Might need a piece for each end and the side stand. Being intended for a MX bike, is that thing rated to lift a DR? Wouldn't be much fun to get it up there and end up wearing it for a hat.


    Bruce
  2. Emmbeedee

    Emmbeedee Procrastinators

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    I have one like that and it's not going to last very long if used to pick up the DR650. It's just barely adequate for the G450X we have.
  3. procycle

    procycle Long timer

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    +1
    Also, those type of stands have the leverage ratios designed for lifting a 230 pound bike. You will probably find that even if you can get the stand under the bike it will take 2 people standing on the pedal to get it in the air.
  4. Rob.G

    Rob.G Mostly Harmless

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    Rather than spend that at a dealer, if you're really right down in Corvalis (I'm in Salem), come up one weekend soon and we can just do it at my place. I have all the tools, including a welder to shorten the side stand.

    Rob
  5. twigsnapper

    twigsnapper How did I get here?

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    Reminds me of the farmer who got a new donkey and when he tried to get him thru the stable door the donkey's ears hit the sill causing him to recoil. When he told the neighbor, that guy said to dig a few inches into the door's stoop to create some clearance. The farmer laughed at him, " you stupid shit, his legs aint to long, his ears are too tall ".
  6. Minsk99

    Minsk99 Adventurer

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    Have you checked for vacuum leaks? If you just had the carb off its a possibility. It's hard to do the WD-40 spray test since the bike is not holding idle. So, I'd start by making sure you have a good seal on the boots and that they are tightened down. Also, check to see that the choke cable is set properly and that the black, plastic housing is screwed on correctly.

    Perhaps one of the carb guru inmates can give you better direction than I, but just some food for thought.
  7. ER70S-2

    ER70S-2 Long timer

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    Buy an oxy/acetylene welder and make your own stuff for the rest of your life. The handle rotates so it can be used in any of the four directions on the bike, LF, RF, LR, RR. It's also removeable for the times it needs to be flat to fit in a tight spot; like packing for a trip. :freaky

    [​IMG]

    Gotta go, it's warm and sunny again. :ricky
  8. deathu

    deathu Adventurer

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    Hi,

    I need some directions for testing the ignition system, eventually without special tools. It seems to me that my '98 DR650 produces a weak, yellowish spark (tested using a spare spark plug connected in turn to each of the HT leads). Of course the ground electrode was held in contact with the engine block.

    How exactly should the spark of a healthy DR650 ignition system look like? I would have expected a blue/bluish spark.
    I measured the resistance between the spark plug cap electrodes and it seems to be in spec as per the service manual I have.

    Any directions for diagnosing the ignition system or a weak spark condition in particular, are more than welcome.

    The bike runs decently well now, but the plugs are always fouling with carbon. The carb is bone stock, rebuilt using brand new internal components, so I would exclude a rich mixture condition. If I understand correctly a weak spark can also cause fouling...

    Thanks!
  9. Feelers

    Feelers Been here awhile

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    Greystroke,

    It sounds like you simply need to adjust your idle screw. The idle screw is also the throttle stop screw which will essentially hold your throttle open slightly. It actually sounds like your throttle is too closed at idle - which is decreasing the airflow which is decreasing the vacuum which is decreasing fuel flow. That's why blocking the snorkel might be helping. Is 2 1/4 turns normal for the fuel screw? I thought it was more like 1 1/2 turns....
  10. Mongle

    Mongle Knuckle dragger

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    Good luck! Carb problems suck! :lol3
  11. Adv Grifter

    Adv Grifter on the road o'dreams

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    1. The OP is in Oz ... DR650's come stock with an adjustable needle there.

    2. 2. 5 turns out seems very rich to me. Should be more like 1 to 1.5 turns
    if everything else is right.

    3. I'd bet Pilot Jet is clogged. Pull it out and clean it and flush out the circuit below the jet too.

    4. Make sure no crud below float needle.

    Good luck!
  12. Mongle

    Mongle Knuckle dragger

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    What the heck...why do they get adjustable needles?! :lol3 I have my idle mixture screw at about 1 3/4 and it runs good; figured another half turn wouldn't make it not run. Mine actually idled better at 2 but had rich bog right off idle. It is a give and take with the damn things...
  13. FlowBee

    FlowBee Just me.

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    The real question is "Why are ours not adjustable?" and "Why is there a stupid aluminum blanking plate over our idle mixture screws?" This is the US EPA's approach. Assume we're stupid, then look the other way.

    I applaud reducing pollution, but the EPA's approach is .... :loco and:topes nanny state bureacracy.
  14. greystoke

    greystoke 2 wheel whore

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    Will def recheck carb boots. Was a bitch to get it back in. Maybe I futzed the fit. Thanks
  15. greystoke

    greystoke 2 wheel whore

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    The throttle stop as I see is the big screw on the left of the carb? It's just a mechanical screw that prevents the throttle from closing completely isn't it? I tightened that one all the way up but the little bit that sticks up only extends about 5mm. Not enough to affect the idle. I can extend the main housing but this still seems like a hack and not the root cause.

    Will try reducing the turns. I was working from the BST Bible which says 2'ish but they're using the KTM needle.

    Thanks!
  16. 805gregg

    805gregg Long timer

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    Weight is your enemy off road, why not put a 790 kit on a DR and have a light weight powerfull bike $680, that's what I plan.
  17. 805gregg

    805gregg Long timer

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    Except put any weight on the XR and the subframe fails, and the 690, bad vibrations, and anyone like lots of and hard maintance? Get a DR and put a 790 kit it, it will blow the rest away.
  18. 805gregg

    805gregg Long timer

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    It's a good shock just upgrade it. I put a $900 Wilbers with all the options on my DL1000 it lasted like 3500 miles, F expensive shocks unless you are rich or you race.
  19. greystoke

    greystoke 2 wheel whore

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    Yeah forgot to mention i'm in Oz where we can be trusted with needles :lol3

    I'll double check the jets but cleaned each one by hand and each hole with tiny dental brushes (work a treat) and pretty sure each one was sparkley before it went back in.

    The circuit however may be something to look at. As I don't have a ultrasonic cleaner setup any tips on getting into the circuit to clean things out?

    Float needle is spotless.

    By blocking the air intake (causing it to idle correctly) wouldn't that reduce the vacuum as well? With no throttle and blocking the snorkel it comes good by itself which to me seems like it would be getting enough fuel via idle. Very odd.

    But if it's getting too much air I would have thought adding choke would improve the fuel air ratio making it run closer to correct. Currently it seems to make no difference except prevent it from starting.

    These things seriously work by voodoo. After checking air leaks and reducing fuel air mix i'm buying a chicken just to be sure...
  20. Feelers

    Feelers Been here awhile

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    Greystoke,
    Carbs aren't voodoo. I promise! Your throttle stop screw is your exact problem. Yes, it is just a simple mechanical screw - probably the simplest thing on the carb. You say that yours extends 5mm and does not affect idle. Ding ding ding! <B> Your idle screw SHOULD BE affecting your idle!!!</B> FWIW, my idle screw extends out almost exactly 1 centimeter and my bike idles and runs quite well. It has some room to extend further too, if necessary.
    Don't overlook the simple stuff when dealing with carbs!