Carbs will not synch
in 912 / 914 Technical Questions
7 years ago
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by Garrett Wysocki » 7 years ago
Are the EGT probes the exact distance form the exhaust ports? I heard that temps will drop about 100 deg per inch as gases leave exhaust port.
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by Kenneth Brown » 7 years ago
Yep, they are both 2.76" from the flange
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by David HEAL » 7 years ago
Perhaps it's just semantics but your Starting Carb (i.e., Choke) actuator cables should not be "... setup nice and tight as are the choke cables." A slight amount of equal slackness in these choke cables is desirable when the chokes are in the "Off" position. The slight slackness enables the choke return springs to do their jobs and fully turn "Off" the choke function (i.e., choke actuator arms resting solidly against their respective "Off" stops). If the carbs' chokes are not fully "Off" after starting the engine, strange operating characteristics will likely result (e.g. rough idle, unusual EGTs, etc.).
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by Garrett Wysocki » 7 years ago
Try swapping the EGT probes to verify the readings.
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by Rob Seaton » 7 years ago
forget the EGT's, that is a symptom not the cause.
-why wont the carbs sync? Are the off at idle? do the needles come together at higher RPM?
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