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Carb Back Fire

Discussion in 'Intermediate CJ-5/6/7/8' started by mr1t5abcde, Nov 13, 2006.

  1. Nov 13, 2006
    mr1t5abcde

    mr1t5abcde New Member

    Aurora CO
    Joined:
    Oct 12, 2006
    Messages:
    15
    I have put on a new re-manufacture 2 jet, with new intake gaskets, and now it backfires both directions, going up a hill it will come up through the carb. going down a hill or on a level or constant speed, it will back fire through the pipes, and i mean, LOUD bang! Got timed correct, I think? Have the carb needles are turned out about 3 turns. Friends say that it might be lean? Any help Please!
    Thanks
     
    mr1t5abcde, Nov 13, 2006
    #1
  2. Nov 13, 2006
    green71jeep

    green71jeep work in progress

    Riegelsville Pa
    Joined:
    Sep 6, 2005
    Messages:
    144
    Poping through intake is usually lean and poping through the exhaust is rich .
    I would recheck the timing and check with a vacume gauge that you have the lowest vacumn you can get at your base idle.
    I would also make sure you dont have any vacumn leaks just because its new dotn count on it that it may not be leaking.
     
    green71jeep, Nov 13, 2006
    #2
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