Lectron carb tuning guide

Discussion in 'Motosportz' started by Motosportz, Apr 15, 2013.

  1. Motosportz CH Sponsor

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    As in screwed way in? Go a 1/2 turn richer on the rod.
  2. corey43 Husqvarna
    A Class

    Location:
    Central MO
    Husqvarna Motorcycle:
    2014 CR 125
    1/8 of a turn out from closed (idle)
  3. Chums Husqvarna
    Pro Class

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    I'd like to discontinue my account
    What are you guys doing for cold weather adjustments? I just put my old lectron on my new 300 and had a bog just above idle leaned it out a 1/4 and made it nice a crisp top end is perfect but I like to be a hair rich for wide open sand spots. I set this at about 55 degrees but will run it in 20-30 degree weather. Pic of plug after initial set up is below.

    Attached Files:

  4. Motosportz CH Sponsor

    Location:
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    just run your PJ a little rich and you should be fine.
  5. yzrider Husqvarna
    AA Class

    Husqvarna Motorcycle:
    2004 cr125
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    2009 yz250f 197? rickman zunpaap 125
    Hey all, i installed a lectron a while back, it took some tuning to get it right, i had to go richer on the needle.

    Its a bit hard to start cold as well as hot. Any tips? I think it needs another 1/4-1/2 richer on the needle. Could that improve starting?
  6. 454x Husqvarna
    Pro Class

    Location:
    Dunnigan,Ca.
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    2012 CR165 w/36mm lectron.
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    2014 BETA 300RR w/36mm lectron.
    Make sure the slide returns almost all the way down. If the slide is open to much your bike will be hard to start.
  7. ks9mm Husqvarna
    AA Class

    Location:
    NJ
    Husqvarna Motorcycle:
    2015 TE 125
    Other Motorcycles:
    2014 Beta 300RR
    as I am waiting on throttle cable that Lectron did not ship to me, I took the top off to look at the rod and make sure slide operates smoothly and does not stick. my carb came with 1-xl3 rod.for 09 WR300

    question, do you guys have Rod adjustment tool? shouldn't one come with carb? what do you use to adjust the rod?

    thanks!
  8. Motosportz CH Sponsor

    Location:
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    No tool needed. Just fold a thin chunk of cardboard over the end and then turn it with pliers. Always 1/4 turn increments and then you MUST reindex the rod so the flat side faces the motor.
  9. ks9mm Husqvarna
    AA Class

    Location:
    NJ
    Husqvarna Motorcycle:
    2015 TE 125
    Other Motorcycles:
    2014 Beta 300RR
    thanks Kelly, when reindexing the rod, there is a bit of rotational free play in it so it may or may not be perfectly square to the motor, is that normal? I have not measured amount of free play, but I would say +/- 5 degrees on either side form perfect square.


    (do you think my throttle cable will arrive before weekend?)
  10. Motosportz CH Sponsor

    Location:
    Vancouver WA
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    2021 TE250i, 570 Berg, 500 KTM, 790R
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    yes the bit of slop is normal and is fine. Yes, cable shipped. I'll Pm you the tracking, says it will be there tomorrow.

    Kelly
  11. ks9mm Husqvarna
    AA Class

    Location:
    NJ
    Husqvarna Motorcycle:
    2015 TE 125
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    2014 Beta 300RR
    thanks!
  12. Motosportz CH Sponsor

    Location:
    Vancouver WA
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    2021 TE250i, 570 Berg, 500 KTM, 790R
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    I asked Kevin from Lectron to call and help you, I believe you guys got it sorted? Or at least are working on it?
  13. ks9mm Husqvarna
    AA Class

    Location:
    NJ
    Husqvarna Motorcycle:
    2015 TE 125
    Other Motorcycles:
    2014 Beta 300RR
    all right.. final update for tonight, before neighbors set my house on fire..and no time to run it thought the gears :mad:


    I am at a point where bike starts fine (hot) idles great and throttle response of idle is instant.
    if rod is 1/4 turn leaner, I need to be at 1 3/4 - 2 turns out on idle screw and if rod is 1/4 turn richer, my idle screw setting is 3/4 out.

    David from Lectron said it does not matter at this point, but I prefer more adjustment range so I set the rod where Idle screw is at 1 3/4 turns out.

    I will let it cool overnight and play around some more tomorrow if weather cooperates. I am curious how it will start tomorow when cold.

    Kelly, your thoughts on this?
  14. ks9mm Husqvarna
    AA Class

    Location:
    NJ
    Husqvarna Motorcycle:
    2015 TE 125
    Other Motorcycles:
    2014 Beta 300RR
    Hey Kelly,
    do you have recommendation on powerjet screw setting for WR300 with stock header? I am beginning to suspect that bike is overly lean, can you check my video and let me know if you think this sounds lean?

    ... and I'd want to get to a good starting point...

    plug chop tests in my neighborhood can land me in some trouble..

  15. Motosportz CH Sponsor

    Location:
    Vancouver WA
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    2021 TE250i, 570 Berg, 500 KTM, 790R
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    I responded to your other post. Sounds like other that rode your bike say something is up with it and it did not have full power with the stock carb either. Somethings up. As for the vid really hard to tell. Seems rich on top to me and most of the Lectron come setup that way. Try your top ends runs with the powerjet at 1/2-3/4 out from full in and move up from there in 1/4 turn increments until the top end is the best. You plug in the other post looks good but a bit rich.
  16. ks9mm Husqvarna
    AA Class

    Location:
    NJ
    Husqvarna Motorcycle:
    2015 TE 125
    Other Motorcycles:
    2014 Beta 300RR

    thanks, I am thinking there is something else going on.. do you think I can find 10+ more HP with PJ tunning? in another thread you did not mention powervalve.. you don't think it's powervalve?
  17. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many
    No, i don't think you will find 10+ HP with the tuning. Somethings up. Might be the PV, might be an ignition issue. Does not seem like it would be a vacuum leak as that would show up more on the idle and low end.
  18. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many
  19. ks9mm Husqvarna
    AA Class

    Location:
    NJ
    Husqvarna Motorcycle:
    2015 TE 125
    Other Motorcycles:
    2014 Beta 300RR
    Kelly, so my power issues are related to flywheel weight I had on the bike. With it removed, bike rips. Found my missing horses...

    Having said that, it seems that I have to re-adjust carb to reflect freer spinning motor. It starts great and of idle response is great. There is now slight bog when whacking throttle open in higher gears. Slight bog than instant power. Any suggestions? Thanks.
  20. Motosportz CH Sponsor

    Location:
    Vancouver WA
    Husqvarna Motorcycle:
    2021 TE250i, 570 Berg, 500 KTM, 790R
    Other Motorcycles:
    many

    Try turning your PJ in (leaner) and see what happens. These Lectrons are kinda different in feel as to lean or rich. You get a feel for it after a few adjustment sessions. Might be the rod is slightly off as well. theres only 2 adjustments and no parts needed, play with it and get it fine tuned.