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1. 03:45 AM - Re: 914 - rough running, and RPM drop when testing the A circuit (kees de bussy)
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| Subject: | Re: 914 - rough running, and RPM drop when testing the A |
circuit
For what it is worth. I experienced 2 times a similar problem with my Rotax 912s.
About 4 years ago for the first time and it was figured out that 1 of the wires
of 1 of the ignition boxes was broken close to the connector. The wire was
soldered which solved the problem.
A few weeks ago it happened again. So I checked the wires but with no result. Furthermore
I checked the spark plug leads, spark plug connectors, pull off force,
etc. replaced all the spark plugs but no results.
Eventually the problem was located by a local Rotax dealer who discovered a faulty
ignition coil. The error in the ignition coil could not be detected by measurement
but only by swapping parts. Hence it was a real pain to find out.
Good luck.
Kees de Bussy
PH-SBR
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http://forums.matronics.com/viewtopic.php?p=383693#383693
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