MudBug
08-19-2020, 01:22 AM
Hey guys not sure if this site is very active anymore but I’m having a hard time finding information on these.
1982 (CDI) 110 started with no Spark at all. Had some leaks and needed a front sprocket so I pulled the engine and tore it down to repair. Set valves, Pulse generator air gap, checked pulse generator timing, pin on camshaft was a little past 12 o’clock at F mark on flywheel (read somewhere that it should be closer to 11 o’clock) pulled flywheel to inspect woodruff key, all looked fine but there was lots of dirt and some metal shavings in the flywheel. Cleaned out, cleaned stator and reinstalled. Got it back together and it started to spark blue but it was weak and intermittent (every 5 pulls or so) stator passes every resistance test I could find (200 ohms on black wire and 1.1 on yellow) tried 5 different ignition coils that all passed resistance test. Installed a new CDI unit, still nothing. I have no power coming from black stator wire to CDI unit plug and no power to ignition coil. Kill switch has been both tested and eliminated. New plug, continuity through plug cap and wire. Engine is properly grounded to frame. Now it doesn’t even spark intermittently anymore. Any ideas here? If the timing was off by one tooth (retarded) would that be enough to cause this? Or are there any other ways to test the stator? Harness appears to be fine, fixed a few breaks and even tried another harness. Pulling my hair out here. Thanks in advance
1982 (CDI) 110 started with no Spark at all. Had some leaks and needed a front sprocket so I pulled the engine and tore it down to repair. Set valves, Pulse generator air gap, checked pulse generator timing, pin on camshaft was a little past 12 o’clock at F mark on flywheel (read somewhere that it should be closer to 11 o’clock) pulled flywheel to inspect woodruff key, all looked fine but there was lots of dirt and some metal shavings in the flywheel. Cleaned out, cleaned stator and reinstalled. Got it back together and it started to spark blue but it was weak and intermittent (every 5 pulls or so) stator passes every resistance test I could find (200 ohms on black wire and 1.1 on yellow) tried 5 different ignition coils that all passed resistance test. Installed a new CDI unit, still nothing. I have no power coming from black stator wire to CDI unit plug and no power to ignition coil. Kill switch has been both tested and eliminated. New plug, continuity through plug cap and wire. Engine is properly grounded to frame. Now it doesn’t even spark intermittently anymore. Any ideas here? If the timing was off by one tooth (retarded) would that be enough to cause this? Or are there any other ways to test the stator? Harness appears to be fine, fixed a few breaks and even tried another harness. Pulling my hair out here. Thanks in advance