Show us your TransAlp modifications!

Discussion in 'Land of the Rising Sun: ADV Bikes from Japan' started by modrover, Apr 13, 2004.

  1. Ladder106

    Ladder106 It's a short cut, really

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    There's a lot going on in carbs so there are a lot of questions for you.

    Can you be more specific here? What do you mean by "doesn't work right"? Do the choke slides move in and out of the carbs? Are the soft sealing ends of the choke plungers in good shape? Do the plungers move in and out of the carbs without binding? Are the plastic covers that thread into the carbs in good shape?

    Does the bike start easier with the choke on? Once warmed up does activating the choke make the bike run so rich it slows the idle speed and eventually dies?....it should.

    I'm assuming you mean you drilled out the pilot mixture adjusting screw plugs and now have access to the screws. If you just did this does it mean that you "boiled" the carbs with those screws in place?

    What does "boiled the carbs" actually mean?

    OK..if you soaked the carbs or something with the pilot mixture adjusting screws in place, you likely did something nasty to the tiny O-rings that live at the end of those screws. Those screws, the small spring, small washer and tiny O-ring should be removed before soaking/boiling the carbs in anything.

    These mixture screws fine tune the idle mixture of the carbs so if they are dirty, clogged or not sealing due to O-ring damage you will not be able to adjust idle mixture.

    Correct idle mixture should be achieved with the screws set between 1/2 and 3 turns out. When turning the screws in do not bottom them hard into the carb body...they are small sensitive tapers.

    When removing these screws from the carb for cleaning and inspection be careful. The screw will come out first, then a small spring, then a tiny washer and then a tiny O-ring. You may have to tap the carb on the bench to dislodge the washer and O-ring. The O-ring should not be flattened torn, stretched or partially dissolved by a carb-cleaning solution.

    Raising the needles makes the mixture richer between 1/3 and 3/4 throttle...or there abouts. You should not have to change this in the TA unless you've done something radical to the airbox or exhaust.

    Photos would be a huge help
  2. Ladder106

    Ladder106 It's a short cut, really

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    2bold....

    If your screws are 4 turns out, you should really consider larger pilot jets. 4 turns puts you in danger of having the screws fall right out of the carbs on a bumpy off-road ride. There's not much spring tension to help keep the screws in place with them backed out so far.

    I'd try 40s first, then maybe 45s
  3. Ladder106

    Ladder106 It's a short cut, really

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    Dr.E

    Best use of a pool table I've seen.
  4. 2old2Bbold

    2old2Bbold was 2bold2getold

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    Your right, and worse than that I've got big long screw extensions so I can reach in there behind the AT tank and adjust them without taking the tank off. But I did stretch the springs a little. Do it every time. I live at almost sea level but do a lot of my riding in NM and CO mountains and hope to be able to adjust the idle when I get there. If it doesn't work I quess I'll have to change it.

    [​IMG]
  5. Dr E

    Dr E Chasing after theory

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    It's definitely improved my game!
  6. Ladder106

    Ladder106 It's a short cut, really

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    2bold,

    Is that the original tubing on the intake port to fuel valve?

    If so, are you sure it's not cracked or harder than a galvanized pipe? Maybe that's why you idle mix is so rich.
  7. 2old2Bbold

    2old2Bbold was 2bold2getold

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    Yeah, that's the one that was on it when I got it for the vacuum pump. Got all new fuel lines and a bunch of other stuff. It's been apart in the garage for several months now while I rework some of the AT installation, wiring, add relays/fuse pannel, lights, horn, cruise control, heated grips, exhaust, rear fender treatment, rear bag racks/crash bars, etc. And change out the RD07 clocks out, that was on it, for RD04 clocks. I can't seem to find a place to stop.

    [​IMG]
  8. R_Rick

    R_Rick Been here awhile

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    I've been searching for answer to this but cannot find (likely due to poor forum searching skills). I'm getting a SS brake line for my 87. Can someone advise on ideal length? I've seen 44" mentioned but cannot confirm if this is correct.

    Cheers and happy holidays

    Rick
  9. Lomax

    Lomax Nanu-Nanu Adventurer

    Joined:
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    Do these bags make my ass look fat? :lol3

    I ordered up a set of smaller panniers for my Transalp but had these larger ones from another bike. I decided to fit the big ones up today and am thinking I may need a Wide Load sign on the back now. :lol3

    Oh well, they will hold lots of stuff and don't have to be on the bike all the time. :huh



    [​IMG]

    Marc
  10. Ladder106

    Ladder106 It's a short cut, really

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    Lomax,

    I think you should call you bike "Michelle". Do not try to split lanes carrying those.

    2Bold,

    Like your idle speed adjuster. Think I'll copy it. It will save me from burning my knuckles all the time.
  11. 2old2Bbold

    2old2Bbold was 2bold2getold

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    Yep, that was the plan. A friend gave me a piece of that flex cable, he uses it to make drive shafts for RC race boats. I silver soldered a piece of brass tubing on a cut off screw on the carb end and made a knob for the other end. Cut a little slot in the cyl fins right under the throttle wheel as a guide and for a little extra clearance. Also relocated the pump for more clearance and cooling. If you have trouble finding that flex cable, let me know and I'll find out where he got it. Really thinking about doin your lowered pegs mod too.

    [​IMG][​IMG][​IMG]


    [​IMG][​IMG]
  12. deathu

    deathu Adventurer

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    :eek2you bike must be like...130cm wide, I guess.

    Anyway, is that a Suzuki 40F0 (gsxr) exhaust you have there? I'm very interested to hear how it sounds on a Transalp...
  13. Lomax

    Lomax Nanu-Nanu Adventurer

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    The guy I got it from said it was a Hayabusa muffler. I does sound very good and is not loud at all. A nice deep throaty sound. It is very light. It looks like a bit of welding and shaping were done to get it to fit properly. The bike runs great with it on there, It actually impresses me for a 600cc bike.

    Marc
  14. happyclam

    happyclam Been here awhile

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  15. happyclam

    happyclam Been here awhile

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    Location:
    Trapped in Maryland
  16. happyclam

    happyclam Been here awhile

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    [​IMG][​IMG]Sorry to take so long on these pics, it's a long story.
  17. happyclam

    happyclam Been here awhile

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    [​IMG]this is her now. I named her Roxie, cause when i got her running she rocked back and forth on my make shift stand. I swear it was like she was coming back from the dead...and couldn't wait to run.
  18. happyclam

    happyclam Been here awhile

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    Couldn't of done it without this thread and all your help. More questions are sure to come. Jeff. Merry Christmas.
  19. 2old2Bbold

    2old2Bbold was 2bold2getold

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    Congratulations on resurecting that poor bike from the dead. You've done a lot of good work. Looks like your getting close. Keep it coming.
  20. happyclam

    happyclam Been here awhile

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    ok