Survey by Qualaroo
+ Reply to Thread
Results 1 to 8 of 8
Like Tree2Likes
  • 1 Post By hash4u
  • 1 Post By umarkhan1

Thread: cultus carby petrol bad mileage and shaky rpm

  1. #1
    PakWheeler Follow
    xain10's Avatar
    Join Date
    Nov 2012
    Location
    Other
    Age
    21
    Posts
    406
    Follows
    1
    Following
    5
    Mentioned
    12 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default cultus carby petrol bad mileage and shaky rpm

    guys plz help me regarding my cultus carby 88k odo which rpm keeps fluctuating and car jerks a lot even on petrol i got the idle rpm set at 1000 bt still it moves to 2-2500k esp in morning when the auto choke does not disengage itself i have to push the throttle twice , thrice and on regular driving at neutral sumtimes falls to 700 i asked my mech he says carb's buttefly clip's bushings have gone loose they need replacment and to add the car does 45 km usually in 8 litres in a weeks local drive the car does not have a thermostat valve installed w/ auto fan helpppp the fluctuation problem was to a certain extent on cng too bt as there has been no cng from last year dont remember how the car performed on cng bt generally the drive is kind a heavy i"ve cleaned the air flter and spark plugs dont show any oil

  2. #2
    Senior PakWheeler Follow
    hash4u's Avatar
    Join Date
    May 2005
    Location
    Islamabad
    Age
    38
    Posts
    24,379
    Follows
    18
    Following
    0
    Mentioned
    406 Post(s)
    Tagged
    13 Thread(s)
    Problems Posted
    0
    Problems Solved
    4
    Best Answers
    3
    Good Answers
    13

    Default

    u know ur cars problems and solutions to some extent
    y r u not getting it fixed?
    butterfly fixed, timing set,carb service,tappet adj,thermo valve back,fan on auto,plugs filters etc
    car should idle at 800 rpm
    Life is short and very unpredictable just like a Quarter mile .....

  3. #3
    Senior PakWheeler Follow
    umarkhan1's Avatar
    Join Date
    Nov 2010
    Location
    Sargodha
    Posts
    2,312
    Follows
    6
    Following
    8
    Mentioned
    51 Post(s)
    Tagged
    4 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    2

    Default

    unstable idle=high float level or butterfly replacement
    get your carb overhauled
    Just Do It Your Self!!!!!

  4. #4
    PakWheeler Follow
    xain10's Avatar
    Join Date
    Nov 2012
    Location
    Other
    Age
    21
    Posts
    406
    Follows
    1
    Following
    5
    Mentioned
    12 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    Quote Originally Posted by hash4u View Post
    u know ur cars problems and solutions to some extent
    y r u not getting it fixed?
    butterfly fixed, timing set,carb service,tappet adj,thermo valve back,fan on auto,plugs filters etc
    car should idle at 800 rpm
    aoa but i am unsure about the auto choke problem that why is not disengaging itself even wen the engine has warmed up i.e the temp needle reaches at almost middle of the guage bt still it disengages wen i rev the throttle two to three times and arent the tappets unadjustable on cultus carby version plus wat do we call them in local language so that i can relate this to my mechanic

  5. #5
    PakWheeler Follow
    xain10's Avatar
    Join Date
    Nov 2012
    Location
    Other
    Age
    21
    Posts
    406
    Follows
    1
    Following
    5
    Mentioned
    12 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    Quote Originally Posted by umarkhan1 View Post
    unstable idle=high float level or butterfly replacement
    get your carb overhauled
    so u mean i need a fullon carb overhaul and changing those bushings wont help and kindly tell me wat would this overhaul include

  6. #6
    Senior PakWheeler Follow
    umarkhan1's Avatar
    Join Date
    Nov 2010
    Location
    Sargodha
    Posts
    2,312
    Follows
    6
    Following
    8
    Mentioned
    51 Post(s)
    Tagged
    4 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    2

    Default

    Quote Originally Posted by xain10 View Post
    so u mean i need a fullon carb overhaul and changing those bushings wont help and kindly tell me wat would this overhaul include
    it just includes cleaning by opening bolt by bolt.if butterfly is damaged aka cutte hoe then you will need to replace the throttle plate.
    butterflies are also repairable by lathe workers
    Just Do It Your Self!!!!!

  7. #7
    Senior PakWheeler Follow
    syncview's Avatar
    Join Date
    Apr 2006
    Location
    Lahore
    Age
    28
    Posts
    3,364
    Follows
    7
    Following
    1
    Mentioned
    436 Post(s)
    Tagged
    2 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    1

    Default

    Quote Originally Posted by xain10 View Post
    aoa but i am unsure about the auto choke problem that why is not disengaging itself even wen the engine has warmed up i.e the temp needle reaches at almost middle of the guage bt still it disengages wen i rev the throttle two to three times and arent the tappets unadjustable on cultus carby version plus wat do we call them in local language so that i can relate this to my mechanic

    that could be because your butterfly linkages need cleaning and/or butterfly needs to replaced as well
    https://www.facebook.com/OsamaAbbasPhotography

  8. #8
    PakWheeler Follow
    mariaawan's Avatar
    Join Date
    Dec 2013
    Location
    Taxila
    Age
    26
    Posts
    97
    Follows
    0
    Following
    0
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0

    Default

    butterfly repairing and carburator cleaning will do the trick

+ Reply to Thread

User Tag List

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •