Carby / Jetting settings for your bike.

Discussion in 'Carby & Tuning' started by thump*140, Sep 4, 2009.

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  1. Sep 4, 2009 #1

    thump*140

    thump*140

    thump*140

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    Ok Kiddies, Uncle Thump had an idea. probably a bad one, but it might help out with some of the carby questions that will always plague minis...
    My idea is thus.
    Using the template below, and the "ADVANCED REPLY" option, fill out all the details ON YOUR SPECIFIC BIKE, and please list your BIKE MODEL, and CARBY TYPE in the heading, so that searches will bring this thread up easily.
    List engine size, carby type, carby diameter, Jetting specs, and type of jets used, eg Keihin or Mikuni style, engine specs ie: standard or modified, and if it's modified, WHAT modifications have you done, and the area in which you live.
    (we want exact I/D's on carbies, not "it's a qenuine fake mikuni 30mm")
    The idea is that others with carby issues, or looking to upgrade carbies, can look through here, find a similar set-up to what you have THAT IS RUNNING PROPERLY, and can use your settings as a base guide to set up their bike. The idea of having where you live, will allow some idea for different altitudes as well. (cheers Dready, good idea mate!)
    REMEMBER WHAT WORKS FOR ONE BIKE, MAY NOT WORK FOR ANOTHER, HENCE THE REASON FOR ACCURATE DETAILS.
    This thread will only have specs of riders bikes. any questions you have, for members with setups similar to yours, PM them if you have queries, or post in techmasters. Any non-relevant or off topic posts will be deleted, we want to keep this thread as relevant and on-topic as possible.
    Thanks guys, and please, those of you with accurate details, and well-jetted bikes, please add to this thread!!
     
    Last edited: Sep 4, 2009
  2. Sep 4, 2009 #2

    thump*140

    thump*140

    thump*140

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    TEMPLATE:

    Bike model:

    Engine Model and capacity:

    Engine Spec - stock or modified - list mods:

    Carby model and Internal Diameter:

    Jetting specs and Jet Type used (Keihin or Mikuni) :

    Area you live, and general altitude (sea level, desert, highlands etc):
     
    Last edited: Sep 4, 2009
  3. Sep 4, 2009 #3

    thump*140

    thump*140

    thump*140

    Mini Riders Legend

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    Full custom, LIFAN 140, 28mm OKO FLATSLIDE

    I'll start things off. hope it helps peoples. :)

    Bike model: Full Custom ground up build. DHZ Monster twin tube trellis Frame.

    Engine Model and capacity: LIFAN 140 all up start in gear. 1JP55FMJ

    Engine Spec - stock or modified - list mods: Modified: IRK, 32mm H-bomb pipe, 7mm lift cam, manifolds port matched, head ported.

    Carby model and Internal Diameter: 28mm OKO Flatslide.

    Jetting specs used: #36 Pilot jet. #102 Main Jet. Stock needle, 2nd clip from the bottom

    Area you live, and general altitude (sea level, desert, highlands etc): RADelaide, SA.
    Just above sea level.
     
  4. Sep 4, 2009 #4

    thump*140

    thump*140

    thump*140

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    2008 Atomik Blitz 26mm OKO Flatslide

    Bike model:2008 Atomik Blitz 250

    Engine Model and capacity: Loncin Gen III w/cooled 250

    Engine Spec - stock or modified - list mods: modified - revbox, muffler cut down by 125mm, airbox removed, using pod filter, header pipe ported

    Carby model and Internal Diameter: OKO 26mm Flatslide

    Jetting specs used: #36 pilot jet, #97.5 main jet, needle on middle clip

    Area you live, and general altitude (sea level, desert, highlands etc): RADelaide, just above sea level
     
  5. Sep 4, 2009 #5

    thump*140

    thump*140

    thump*140

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    04 Thumpstar Hunge-ten reframed

    Bike model: 04 Genuine Thumpstar Hungeten, reframed into 05 Orion 125 frame.

    Engine Model and capacity: FYM 110 2v. (original Hungeten motor, 3spd all up)

    Engine Spec - stock or modified - list mods: Stock, rev box, 30mm exhaust

    Carby model and Internal Diameter: Ebay Fake Mikuni, 26mm I/D

    Jetting specs used: #20 pilot, #95 Main jet, Needle second groove from the top

    Area you live, and general altitude (sea level, desert, highlands etc): RADelaide, close to sea level.
     
  6. Sep 4, 2009 #6

    thump*140

    thump*140

    thump*140

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    LEI/ATOMIK QUAD 250 30mm Fake Mikuni pumper

    Bike model: 2008 Atomik Quad

    Engine Model and capacity: Zongshen Gen 1 250cc upright, reverse down & 4-up

    Engine Spec - stock or modified - list mods: Stock, rev box.

    Carby model and Internal Diameter: 30mm Fake Mikuni pumper

    Jetting specs used: #24 pilot, #97 main, needle on 2nd groove from bottom

    Area you live, and general altitude (sea level, desert, highlands etc): RADelaide near sea level
     
  7. Sep 4, 2009 #7

    thump*140

    thump*140

    thump*140

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    05 orion/atomik 125 semi auto

    Bike model: 05 Orion/Atomik 125

    Engine Model and capacity: E-start Ducar 125cc semi-auto 4-spd all down

    Engine Spec - stock or modified - list mods: stock.

    Carby model and Internal Diameter: Ebay Fake Mikuni 24mm oval bore

    Jetting specs used: #20 pilot jet, #92 main jet, needle on middle clip

    Area you live, and general altitude (sea level, desert, highlands etc): RADelaide near sea level
     
  8. Sep 5, 2009 #8

    mrbrnz

    mrbrnz

    mrbrnz

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    Location:
    Melbourne
    Bike model: 09 atomik nitrous

    Engine Model and capacity: 150cc yx 150 daytona style

    Engine Spec - stock or modified - list mods: very light port matching and head clean

    Carby model and Internal Diameter: molkt vm24 copy
    Jetting specs used: #20 pilot jet(?)no markings, #102 main jet, needle second clip from bottom.
    Area you live, and general altitude (sea level, desert, highlands etc): southeast melbourne.
     
    Last edited: Sep 8, 2009
  9. Sep 5, 2009 #9

    linkenator

    linkenator

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    Location:
    Perth, western australia
    Bike model: Tdr Klx syle.

    Engine Model and capacity:Lifan 140cc

    Engine Spec - stock or modified - list mods: Slightly modded with a hydraulic clutch
    Big bore 32mm pipe

    Carby model and Internal Diameter: OKO 26mm flatside carby.

    Jetting specs and Jet Type used (Keihin or Mikuni) : 97/36

    Area you live, and general altitude
    about 15m above sea level
     
  10. Sep 8, 2009 #10

    thump*140

    thump*140

    thump*140

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  11. Oct 5, 2009 #11

    pbk

    pbk

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    Location:
    central coast
    Bike model:08 dhz monster

    Engine Model and capacity: lifan 150cc (daytona style casing)

    Engine Spec - stock or modified - list mods: stock (ORK)

    Carby model and Internal Diameter: OKO flatslide 26mm

    Jetting specs and Jet Type used (Keihin or Mikuni) : k40 pilot and k97 main (keihin) and needle on 2nd notch from bottom

    Area you live, and general altitude (sea level, desert, highlands etc): central coast N.S.W just above sea level
     
  12. Nov 25, 2009 #12

    DvDRip

    DvDRip

    DvDRip

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    Location:
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    Bike model: PP140XR

    Engine Model and capacity: Lifan 140,

    Engine Spec - stock or modified - list mods: lightweight slinger/flywheel.... so basically stock when it comes to jetting comparison

    Carby model and Internal Diameter: OKO 26mm Flatslide

    Jetting specs and Jet Type used (Keihin or Mikuni) : Keihin 36 / 96 but 98 works pretty good too, needle clip one clip down

    Area you live, and general altitude (sea level, desert, highlands etc): melbourne western suburbs
     
    Last edited: Nov 25, 2009
  13. Nov 25, 2009 #13

    Peter1230

    Peter1230

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    Location:
    central coast NSW
    Bike model: DHZ K1
    Engine Model and capacity: 155z

    Engine Spec - stock or modified - Stock.

    Carby model and Internal Diameter: OKO 26mm Flatslide

    Jetting specs and Jet Type used (Keihin or Mikuni) : Keihin 36 / 100

    Area you live, and general altitude (sea level, desert, highlands etc): East Coast australia near sydney sea level.
     
  14. Nov 25, 2009 #14

    china boy788

    china boy788

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    Location:
    North brisbane
    Bike model: home build

    Engine Model and capacity: zonger 125cc

    Engine Spec - stock or modified - list mods: modified, akunar g2 cam, akunar HD valve springs, stainless steel vavles, ported head with 26mm intake

    Carby model and Internal Diameter: fake 26mm mikuni, so 22mm rly

    Jetting specs and Jet Type used (Keihin or Mikuni) : mikuni, 15,92.5 needle on bottom clip

    Area you live, and general altitude (sea level, desert, highlands etc): brisbane north side
     
  15. Nov 25, 2009 #15

    DvDRip

    DvDRip

    DvDRip

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    china boy sounds like you need to richen out your jets, basically if needle clip is all the way you need to go bigger, needle should sit in the middle 3 grooves
     
  16. Nov 25, 2009 #16

    china boy788

    china boy788

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    yer should go smaller should go 12.5 but owell. i like how it feels plus when did spark plug reading, it was pretty much spot on,
     
  17. Nov 25, 2009 #17

    DvDRip

    DvDRip

    DvDRip

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    yeh if it goes good then w/e It's just a rule of thumb kinda thing. oh and richen = bigger jets
     
  18. Nov 25, 2009 #18

    thump*140

    thump*140

    thump*140

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    yeah china i think you'll find a 12.5 way too lean on the pilot... 20 would be closer i reckon....

    Hmm... seems like we can see a bit of a pattern forming on jetting, especially with the OKO 26mm's...
    seems everyone is running 36 or 37 pilots, and 96-100 mains...
     
  19. Dec 31, 2009 #19

    thump*140

    thump*140

    thump*140

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    Location:
    adelaide
    Bike model: Mikilon D8-125 (Miniblitz)

    Engine Model and capacity: Zongshen 125 start in neutral only

    Engine Spec - stock or modified - list mods: Stock

    Carby model and Internal Diameter: OKO 21mm Flatslide

    Jetting specs and Jet Type used (Keihin or Mikuni) : #k35 pilot, #k92 main, JJH needle on middle clip.

    Area you live, and general altitude (sea level, desert, highlands etc): rAdelaide.

    Ps: Bump.
     
  20. Dec 31, 2009 #20

    bulldog93

    bulldog93

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    Location:
    2330 Singleton
    Bike model: Home built looking thing

    Engine Model and capacity: Lifan 110

    Engine Spec - stock or modified - list mods: Stoko

    Carby model and Internal Diameter: Mikuni 22mm

    Jetting specs and Jet Type used (Keihin or Mikuni) : M95 main, Pilot?? Doesn't have marking on top of it.

    Area you live, and general altitude (sea level, desert, highlands etc): Out west, Vally, Dry.
     

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