diskman_1
05-18-2005, 03:38 PM
Sorry if this has been beaten to death before. I googled and came up with several ideas to no avail. I am hoping someone can help me before I need to shell out $400 for a coil and CDI unit.
Last weekend, I noticed that my 200es was idling poorly to the point of quitting and it always needed some throttle to keep running. It has NEVER done this before and I assumed that dirt was in the carb. I got it home and it wouldn't start on the trailer. After some diagnosing, I discovered there is no spark and the plug was very black. I believe the poor ideling was/is due to electrical of some sort now. I also have a 1984 ATC110 in running condition that I am able to help debug this problem. Here is what I have found so far.
I swapped the coil from the 110 to the 200 and so forth. Both coils run on the 110.
When I hook up an LED 12v trouble light on the 12V wire to the coil in the 200 I get very intermittent blinking for about 1 second then the LED blinks in time with the compression stroke. So there is SOME voltage getting to the coil ad the right time, but it's probably not enough I assume?
When I metered the pulse generator, I get a nice swing of inductance. Does anyone know what the resistance of the pickup is supposed to be? I assume it's working as I get pulses at the coil.
I tested the CDI Unit as per the Honda shop manual and I cannot get any readings across the pins as the book says I should. I tried it with my 110 CDI and I get readings.
Now what? Should I just bend over and order a new CDI ($189) and hope it works? What else should I check? I am getting some voltage pulses at the coil but I assume it's not enough amperage.
I also swapped spark plug wires between the ATCs to test with. I did swap the CDI from the 110 to the 200 but the 110 is missing a pin (RS) and it causes my 200 to think it's always in reverse. I used the pull start but still no spark in that case. I am assuming the 110 CDI is different anyways. The plug was the same. Yes, it still works on my 110. :)
Any ideas? We are looking forward to using these Memorial weekend in northern Minnesota so any ideas would be great!
TIA!
Last weekend, I noticed that my 200es was idling poorly to the point of quitting and it always needed some throttle to keep running. It has NEVER done this before and I assumed that dirt was in the carb. I got it home and it wouldn't start on the trailer. After some diagnosing, I discovered there is no spark and the plug was very black. I believe the poor ideling was/is due to electrical of some sort now. I also have a 1984 ATC110 in running condition that I am able to help debug this problem. Here is what I have found so far.
I swapped the coil from the 110 to the 200 and so forth. Both coils run on the 110.
When I hook up an LED 12v trouble light on the 12V wire to the coil in the 200 I get very intermittent blinking for about 1 second then the LED blinks in time with the compression stroke. So there is SOME voltage getting to the coil ad the right time, but it's probably not enough I assume?
When I metered the pulse generator, I get a nice swing of inductance. Does anyone know what the resistance of the pickup is supposed to be? I assume it's working as I get pulses at the coil.
I tested the CDI Unit as per the Honda shop manual and I cannot get any readings across the pins as the book says I should. I tried it with my 110 CDI and I get readings.
Now what? Should I just bend over and order a new CDI ($189) and hope it works? What else should I check? I am getting some voltage pulses at the coil but I assume it's not enough amperage.
I also swapped spark plug wires between the ATCs to test with. I did swap the CDI from the 110 to the 200 but the 110 is missing a pin (RS) and it causes my 200 to think it's always in reverse. I used the pull start but still no spark in that case. I am assuming the 110 CDI is different anyways. The plug was the same. Yes, it still works on my 110. :)
Any ideas? We are looking forward to using these Memorial weekend in northern Minnesota so any ideas would be great!
TIA!