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George Alexander
Joined: 10 Jan 2006
Posts: 245
Location: SW Florida
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 Posted: Fri Apr 24, 2015 11:16 am Post subject: Kill circuit issue - CDI |
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Have a R503 w/DCDI. Engine runs great. Shut down, not so great. Go from Both to Off, engine runs very rough. Return to Both, clears up. Initially suspected (keyed) ignition switch. Clean contacts, used di-electric grease, worked fine for a couple of cycles. Problem returned. Swapped out keyed ignition with 3 position toggles (Off-On-Momentary). Again OK for couple of cycles. Replaced wiring from switches to connectors going to CDI Modules, leaving only the original wires (Yellow/Black) from the CDI modules. Same issue.
Unless, I'm missing something and/or someone has a suggestion, it seems to point to one of the modules. Will try the tests described in CPS's Part #58 (resistance readings). Since the indicated reading between the Yellow/Black and anything else is OPEN and I'm looking for Ground to shut down, not sure what this test will show.
Don't look forward to replacing the CDI Modules.
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_________________
George Alexander
FS II R503
E-LSA N709FS
http://www.oh2fly.net |
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gspecketer(at)gmail.com
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| Posted: Fri Apr 24, 2015 11:34 am Post subject: Kill circuit issue - CDI |
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One of the things high on my list would be poor connection. Either broken wire or faulty crimp on connector.
Gary
| Quote: | On Apr 24, 2015, at 3:16 PM, George Alexander <gtalexander(at)att.net> wrote:
Have a R503 w/DCDI. Engine runs great. Shut down, not so great. Go from Both to Off, engine runs very rough. Return to Both, clears up. Initially suspected (keyed) ignition switch. Clean contacts, used di-electric grease, worked fine for a couple of cycles. Problem returned. Swapped out keyed ignition with 3 position toggles (Off-On-Momentary). Again OK for couple of cycles. Replaced wiring from switches to connectors going to CDI Modules, leaving only the original wires (Yellow/Black) from the CDI modules. Same issue.
Unless, I'm missing something and/or someone has a suggestion, it seems to point to one of the modules. Will try the tests described in CPS's Part #58 (resistance readings). Since the indicated reading between the Yellow/Black and anything else is OPEN and I'm looking for Ground to shut down, not sure what this test will show.
Don't look forward to replacing the CDI Modules.
--------
George Alexander
FS II R503 N709FS
http://www.oh2fly.net
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=441246#441246
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