1976 suzuki ds100

Discussion in '2 smokers' started by clicheche, Apr 19, 2013.

  1. Andyinhilo

    Andyinhilo Long timer

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    The enrichener opens a passage that allows a small stream of fuel to enter the carb throat. If it is stuck open that could be an issue. You can try lowering the float, that would lean it out some.
    #21
  2. clicheche

    clicheche Adventurer

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    so should the enrichener lever be pushed down to close it? or up to close it?

    or, should the plunger rod be down in the carb, or pulled out?

    i lowered the float last night, i fear too far, as it wouldn't start.
    :cry

    and to add salt to my wounds, my '07 dr650 suzuki won't start either.
    unreal.
    #22
  3. clicheche

    clicheche Adventurer

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    got both running!

    the '07 was a fuel/air screw on bottom of carb,

    the '76 was, yet again, a float/float bowl issue.

    when i lowered the float, it was way too much, and the bowl was empty again :1drink

    so i raised it, and pulled out the fuel/air screw quite far, and presto, it runs. i'm still not sure about the points... something seems weird. maybe i'm crazy.

    the throttle does not respond very quickly at all. but it idled on its own for like 5 minutes.

    i then proceeded to tip it over quite far taking it off the stand with all the excitement... it wouldn't start after that :lol3

    smoke was whiter in color, and the spark plug was heavily oil fouled (crank seals?)

    basically, if the bike shows me signs of life, i'll be rebuilding it thoroughly to perfection in the future. (before parts are gone)

    thank you so far. something tells me i'm not done with this sucker
    #23
  4. clicheche

    clicheche Adventurer

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    doesn't want to start today.

    granted, it's about 0 degrees celcius (32 farenheit)

    when the bike is leaning foward, as in tilted forward when on the stand, it will want to start and idle much easier than when it is tilted back. would more or less fuel be in the float bowl when leaning forward or back?
    or does it matter?

    and i've tried (un)screwing the air screw to see if it would offset.

    it seems like a really slow, and delayed idle. like it fires every second time or something. like there is a moment in between firing.

    anywho, will be back. with pics too!

    ps: still waiting on the points plate and condensor,
    #24
  5. clicheche

    clicheche Adventurer

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  6. Andyinhilo

    Andyinhilo Long timer

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    It should be less fuel if the bike is tilted forward, I think. The air screw controls air, so screw in for richer, out for leaner.
    #26
  7. clicheche

    clicheche Adventurer

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    thanks!
    #27
  8. psycho klr

    psycho klr Qu'est-ce Que C'est

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    Until you get a service manual for this bike so that you can properly set the float level adjustment, air screw, timing, etc., you are just chasing your tail. You may be able to find the info online but it would be easier to find a manual.
    #28
  9. clicheche

    clicheche Adventurer

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    i can't even find a manual! (i rarely use e-bay)

    are these settings that fickle for the bike to run?

    obviously timing is of concern. i have a feeler guage, just need the points gap settings. (and the parts to arrive) nothing online.

    thanks for the advice. i never thought about float height needing to be super exact... in a simple 2 stroke case.

    thanks again!:1drink
    #29
  10. clicheche

    clicheche Adventurer

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    how does one set the timing?

    i've had the bike running in the recent past, but as of today the thing won't even turn over. i'm definitely at a loss.
    #30
  11. Spikester300

    Spikester300 Roll Tide!

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    If it really won't turn over it may be flooded and that may be a lot of your problem. Take the plug out and kick it and see if gas gushes out of the head.
    #31
  12. clicheche

    clicheche Adventurer

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    no gas comes out of the head at all. i've had the plug in and out so many times to check and see if its even wet. when i kick it, no gas at all.

    i can't understand it!

    haha.

    checked float height. as per the info online i could muster. 5/8 inch -3/4 inch, and that's where it lies. the bowl has fuel, and the plug has spark. i had the sucker running a week or two ago.

    i was told the air screw to be turned out 1 and a 1/4
    and to unscrew the slide screw quite a ways out. its almost as if, now, the plug isn't getting fuel. all jets are clear.
    #32
  13. clicheche

    clicheche Adventurer

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    when i kick it over, it will kick back up pretty hard. is this a sign of something?
    #33
  14. JeffS77

    JeffS77 cheap bastard

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    Timing is off
    #34
  15. clicheche

    clicheche Adventurer

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    that's what i'm thinking.

    i have a rough idea as to how to set timing.

    any pointers?

    could it be related to my points position?
    #35
  16. Spikester300

    Spikester300 Roll Tide!

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    Your points position is the timing but first set the points gap and then the timing. And if it's a '76 isn't it a TS instead of a DS? It probably doesn't matter about the points, probable the same anyway.
    #36
  17. clicheche

    clicheche Adventurer

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    well aren't you a load of factual fact.

    just found out tonight from the seller, that the bike is a '78... i could not find the serial number for the life of me... save for a frame number.

    at any rate, all i would have to do is rotate the points plate? to adjust the timing?

    because i've already gapped them
    #37
  18. Spikester300

    Spikester300 Roll Tide!

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    If the gap is correct the points should just open when the timing marks line up. You can use something like a .0015 feeler gage or the plastic off a pack of smokes to put between the points and when it slips in them it's close. There is a mark somewhere that lines up just before the points cam opens the points.
    #38
  19. clicheche

    clicheche Adventurer

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    i had this thing running a month ago, and now, nothing.

    i kicked it over, and it revved out like it was rich after about 2 seconds.

    i then push started it down a hill, and it was turning over, maybe even burning some fuel, but revved very lightly.

    i have spark, i have measured float bowl height, bowl has fuel.

    could it just be carb screws? i have an '80 yamaha with a very similar carb and i tweaked that just fine.

    god bless, any ideas folks?
    #39
  20. clicheche

    clicheche Adventurer

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    so now it's thinking about running, ... i can't believe how fickle its being.
    #40