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Thread: JET SIZE?/update

  1. #1
    apriliaforum Member
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    Aug 2007
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    stirling
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    JET SIZE?/update

    hi all,
    thats me given up on 34mm carb!
    more hassle than its worth!
    might try again in the new year, but wont make the mistake of buying second-hand!
    (cant trust no-one!)
    i like the look of the polished one but its a bit steep,
    anyone know where i can get it for a reasonable price?
    anyway put standard carb back on,
    starts 1st time!
    & more importantly, keeps going!
    but, again, i need opinions on jet sizes!
    i know 120 is standard on 28mm but whats recommended for fp with jl twin?
    i was thinking of 128 or 130,
    what do you guys think?
    i need a bigger jet asap,
    so any suggestions welcome!
    cheers,
    GAZ
    2000 rs in silver
    34mm polished carb (160 jet)
    JL twin (the one everyone else hates!)
    polished yoke.solid black db screen
    16/40 gearing.fully stripped down & rebuilt!
    DID RUN GREAT! NOW NOT STARTING!
    tempted to strip it down & sell for parts!
    & get another project!
    1992 HONDA NS125R-L (tc-o1) - SOLD

  2. #2
    apriliaforum expert
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    Wolverhampton west mids
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    597
    Got to say all the S/H 34 mm carbs i have been asked to fit dont work ! always end up putting a new one on there, So i feel for you
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  3. #3
    apriliaforum Member
    Join Date
    Aug 2007
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    stirling
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    Quote Originally Posted by PJ ENGINEERING View Post
    Got to say all the S/H 34 mm carbs i have been asked to fit dont work ! always end up putting a new one on there, So i feel for you
    cheers mate,
    will prob. order a new one from you,
    as soon as cash allows!
    seen a polished one sumwer but cant remember where?
    it didnt have black plastic top, but polished metal one?
    do you have?
    cheers,
    GAZ
    2000 rs in silver
    34mm polished carb (160 jet)
    JL twin (the one everyone else hates!)
    polished yoke.solid black db screen
    16/40 gearing.fully stripped down & rebuilt!
    DID RUN GREAT! NOW NOT STARTING!
    tempted to strip it down & sell for parts!
    & get another project!
    1992 HONDA NS125R-L (tc-o1) - SOLD

  4. #4
    apriliaforum expert AndyS_RS's Avatar
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    Aug 2006
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    www.tjtuning.co.uk/forums
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    4,094
    mine was a right basa, was so far from stock by the time I was happy with the jetting.

  5. #5
    apriliaforum expert Silent11's Avatar
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    Mar 2007
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    staffordshire
    Posts
    606
    ye i ended up getting a nice new one after the s/h one was crap but hey ho works now

    Mods:
    Deristricted 2001 Aprilia RS125
    34mm Carb
    39/16 Sprockets
    Betor Gas Shock
    Pirreli Tires
    Blue Wheels
    Solo seat
    R&G Protectors
    Carbon fiber bits

  6. #6
    apriliaforum expert random0082's Avatar
    Join Date
    Jul 2004
    Location
    UK
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    3,709
    the second hand one i had worked good, but i had to put a bizzarre needle in it to get rid of some midrange stutter, the same. then again, im too tight to spend that much on a new one for the diff it makes on a standard bore machine
    2000 APRILIA RS125 - Marchesini SP mag wheels, fully adjustable SP rear shock, 34mm Dellorto carb, R&G crash bungs, Carbon front mudguard, 1 piece lightweight ARD race seat unit, Brembo rear caliper, Brembo billet front master cylinder, EBC ProLite front disc

    Quote of the month from Vickers 'so shove it up your gold plated welly-ended fadge and have an orgasm over it'

  7. #7
    apriliaforum Member Gee's Avatar
    Join Date
    Sep 2007
    Posts
    97
    i just fitted mine tonight, such a hassle 155 main jet. started straighjt away but well boggy. So i tuck the snorkle out and it was a bit better! so i thoughn it snot geting enough air. moved the needle position so it was lettign less fuel in. Then it was working fine but pluttered liek mad mid range. so i changed the circlip again and it were working mint for about 20 seconds then it died on me. Tuck spark plug out and it were oily as. gona see if i can sort it tommorow if not im going to take it into shop.
    gee

    rs 125

    WISECO piston
    VHM Head
    34mm Carb
    Jolly moto on its way


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