1980 XS650 with
PMA (HHB)
Pamco Original conversion
Dynatek DC1-3 Coil
Yuasa YTX12-BS Battery
Bike has ran just fine for a full season, just went to take it out and no spark. Here's what I've gathered from troubleshooting and checking everything over the last 2 days.
Battery 12.4 VDC
Coil
Primary resistance 3.2 OHMs
Secondary resistance 15k OHMs
Primary to Center core OPEN
Primary to Plug wire OPEN
Plug wire to Center core OPEN
Pamco Voltages
Red 12.4 VDC
Black 0 VDC
Green 12.4 VDC (Note this varies down to 1.12VDC when the plate is spun around)
I have checked the individual component on the Pamco plate
resistors are
500 OHM
800 OHM
8.1k OHM
the PNP Transistor GB14C40L is where I am running into issues. While using a Fluke 189 Meter in Diode mode I get the following:
+POS Base to -NEG Emitter Open Line (Good)
+POS Base to -NEG Collector Open Line (Good)
-NEG Base to +POS Emitter 1.11VDC (Good is .45VDC-.9VDC) Problem
-NEG Base to +POS Collector 0VDC (Good is ,45VDC-.9VDC) Problem
Collector to Emitter .45VDC (Good is Open Line) Problem
From what I have found online and here on the board I believe that my transistor is bad. Can anyone confirm this from the troubleshooting? http://www.vetco.net/blog/?p=184 is the link I used for the pin out of the transistor. I am testing the transistor in the circuit and am wondering if that has any issue.
I have verified that the VDC at the coil +POS is 12.4 and that the signal from the PAMCO Green wire (12.4 VDC until I spin it then it will drop to 1.11 VDC. When I spin the plate and ground a spark plug to the engine case I do not get any spark, but I do hear a clicking at the coil. This somewhat confuses me. From what Im gathering is that the if the transistor is actually bad that the signal that it is sending to the green wire to the coil is the incorrect signal to "FIRE" the coil.
Any one care to chime in?
PMA (HHB)
Pamco Original conversion
Dynatek DC1-3 Coil
Yuasa YTX12-BS Battery
Bike has ran just fine for a full season, just went to take it out and no spark. Here's what I've gathered from troubleshooting and checking everything over the last 2 days.
Battery 12.4 VDC
Coil
Primary resistance 3.2 OHMs
Secondary resistance 15k OHMs
Primary to Center core OPEN
Primary to Plug wire OPEN
Plug wire to Center core OPEN
Pamco Voltages
Red 12.4 VDC
Black 0 VDC
Green 12.4 VDC (Note this varies down to 1.12VDC when the plate is spun around)
I have checked the individual component on the Pamco plate
resistors are
500 OHM
800 OHM
8.1k OHM
the PNP Transistor GB14C40L is where I am running into issues. While using a Fluke 189 Meter in Diode mode I get the following:
+POS Base to -NEG Emitter Open Line (Good)
+POS Base to -NEG Collector Open Line (Good)
-NEG Base to +POS Emitter 1.11VDC (Good is .45VDC-.9VDC) Problem
-NEG Base to +POS Collector 0VDC (Good is ,45VDC-.9VDC) Problem
Collector to Emitter .45VDC (Good is Open Line) Problem
From what I have found online and here on the board I believe that my transistor is bad. Can anyone confirm this from the troubleshooting? http://www.vetco.net/blog/?p=184 is the link I used for the pin out of the transistor. I am testing the transistor in the circuit and am wondering if that has any issue.
I have verified that the VDC at the coil +POS is 12.4 and that the signal from the PAMCO Green wire (12.4 VDC until I spin it then it will drop to 1.11 VDC. When I spin the plate and ground a spark plug to the engine case I do not get any spark, but I do hear a clicking at the coil. This somewhat confuses me. From what Im gathering is that the if the transistor is actually bad that the signal that it is sending to the green wire to the coil is the incorrect signal to "FIRE" the coil.
Any one care to chime in?