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XJ600 (51J) not idle/start | video

Discussion in 'XJ Technical Chat' started by tomas7470, Oct 11, 2022.

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  1. tomas7470

    tomas7470 New Member

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    Hi guys

    I started fixing an old 1984 XJ600 (51J), have completely clean and re-built the carburetor however whatever I tried it just won't idle.

    Few things I noticed while testing:
    • If I just try to start the engine it usually doesn't even combust.
    • only if I remove the air filters and block one of the carb air intake with my hand the it starts to combust but also for a few seconds (as you see in the video) and my hand a good amount of fuel on it. (not sure also how safe it is) :rolleyes:
    • I twisted the 3 mixture Screws a bit out which defiantly changed something, not sure I should struggle with the 4th one (which is warn/stripped so I can't really get it out)

    Potential issues:
    • I have one mixture screw from one Carb which was stripped (couldn't get it out) so it is still stuck there.
    • one of the Carbs Intake manifold (rubber) someone before me broke the screw inside the engine block, so it just holds it on one screw&gasket.
    • Changed the air filter to a single air filter for each Carb (see below picture).
    Any Idea??

    Video of one of my many tries:
     
    tomas7470, Oct 11, 2022
    #1

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