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Jeep YJ Weber 36 Carb Upgrade Idle Issue

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Published on Sep 18, 2008

I recently put a Weber 36 Carb on my YJ 4.2 258. It runs great but there are a few issues with it.

First of all idle: Idle does not seem to keep steady its constantly fluctuating and sometimes will stall. This is even after adjusting the idle speed screw to about 900 RPM.

Second is the High Idle: Ocasionally while driving, the engine will get stuck at 2000 RPM or 1500 RPM or 3000 RPM. I pull over and look under the hood during this time and noting seems to be effecting the linkage. If I rev up quickly it usually goes away or if I go under the hood it seems like the linkage to the carb is stuck, but it doesn't seem like its stuck to anything.

Other then that the performance is great.

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