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17 Posts
Bike is a 1970 CL350 - I am not getting spark on the left side at the plug boot. I have pulled the spark plug boot and attempted to ground to the engine and confirmed no spark on left. Did same for right and confirmed right was making spark. I removed the points cover and confirmed that spark was happening for the right side but not for the left.
To test to see if it was the condenser I switched the pig tail leads for the condenser to the opposite coils. I was able to confirm both by grounding the right spark boot to the engine and seeing the spark at the right side point but the left still was not sparking at the point or the boot. I switched both pig tails back to their original coils.
Then to confirm that it wasn't the wires that connect to the points I swapped both to the opposite coil as I did for the condenser and was able to get spark on the left coil and confirmed it at both the left point and the left spark plug boot grounded to the engine but now I couldn't get spark at the right side point or boot.
Tested resistance on left coil. Yellow lead to black white lead is 5 ohms. Yellow lead to spark boot is about 19k
Tested resistance on right coil. Yellow lead to black white lead is 5 ohms. Yellow lead to spark boot is 16k.
Battery voltage is 12.2
When everything is set up correctly and I don't get spark on the left side the left coil warms up pretty quickly to the touch.
I am a novice and have little experience. I am mechanically inclined but anything electrical is intimidating to me. I understand it in theory, but can't put it to practice. I've been chasing this gremlin for about a month. Want to make sure the coil(s) is(are) shot and that they are the issue before I drop money on a new set, replace them and still have the same issue.
To test to see if it was the condenser I switched the pig tail leads for the condenser to the opposite coils. I was able to confirm both by grounding the right spark boot to the engine and seeing the spark at the right side point but the left still was not sparking at the point or the boot. I switched both pig tails back to their original coils.
Then to confirm that it wasn't the wires that connect to the points I swapped both to the opposite coil as I did for the condenser and was able to get spark on the left coil and confirmed it at both the left point and the left spark plug boot grounded to the engine but now I couldn't get spark at the right side point or boot.
Tested resistance on left coil. Yellow lead to black white lead is 5 ohms. Yellow lead to spark boot is about 19k
Tested resistance on right coil. Yellow lead to black white lead is 5 ohms. Yellow lead to spark boot is 16k.
Battery voltage is 12.2
When everything is set up correctly and I don't get spark on the left side the left coil warms up pretty quickly to the touch.
I am a novice and have little experience. I am mechanically inclined but anything electrical is intimidating to me. I understand it in theory, but can't put it to practice. I've been chasing this gremlin for about a month. Want to make sure the coil(s) is(are) shot and that they are the issue before I drop money on a new set, replace them and still have the same issue.