engine running rough

Discussion in 'The Workshop' started by billyboi, Nov 18, 2008.

  1. billyboi

    billyboi New Member

    Messages:
    92
    hey after installing my 70 kit today my bikes running rough when full throttle it splutters and slows down

    also bought a dt 125 today and does same thing at high revs i.e goes to near enough last revs and splutters in 1st and 2nd and when go in 3rd slows right down

    any body have any ides what it could be?

    cheers
     
  2. m1ck_t

    m1ck_t Moderator Staff Member

    Messages:
    3,627
    Rides:
    alot of shit
    service the dt and you will probs find out a load of shit about it.

    upjet/set up your carb and tranny for the 70 kit
     
  3. billyboi

    billyboi New Member

    Messages:
    92
    running a 105 jet on the aerox

    for a 70s and yasuni pipe maybe bit high

    and as for the dt... should i do a home service?

    if so what shall i do? lol

    and any idea on what could be making it splutter

    cheers
     
  4. m1ck_t

    m1ck_t Moderator Staff Member

    Messages:
    3,627
    Rides:
    alot of shit
    105 is way too high, i would have thought somewhere around 80 odd but wait for a second opinion.

    the dt....

    just change the oil,airfilter,spark plug, give the carb a good old strip and clean thoroughly, get yourself a tub of copper and lithium grease for all the nuts and bolts(makes life alot easier in the future) , check the pv is correctly set up ,and the oil pump.

    rebuild the calipers, check chain and sprokets, ost of the time the clutch needs adjusting or plates need replacing.have a look at the reeds whilst your on the carb too.

    loads more things but those can be done at home in a few hours hours if your lazy

    :p
     
  5. billyboi

    billyboi New Member

    Messages:
    92
    o lol had a 86 in there an the bike shop said the best they got is 105 and it should do lol but obv wrong lol

    should i put my 86 back in?

    and looked over it quickly and the power valve is.. bodged! lol

    think that what it could be? ill gte some pics 2moz when its light

    cheers
     
  6. pembo_99

    pembo_99 Member

    Messages:
    164
    take it for a long spin and check plug at different throttle openings, there is bound to be a chart on what to look for colour wise someware on here, if not google it, and that will determine what jeting you need, say hold it a mid revs down a long road, then kill the engine holding the revs, then check plug, that will determine needle position (richer or leaner) same at full throttle will do main jet, same at first quarter will determine pilot, needs a good run though..
     

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