sam000lee
Forum Mentor
Went to install a Dyna DS3-1 in my friend's 1977 GS550 this week and encountered something a little unexpected. I've done this before on my 1977 GS750 and they both had the KD ignition stock. We're going to put in Dyna coils and a coil relay mod in at some point, but haven't yet. I've installed the CRM on all of my own GS's so am very familiar with that area of the wiring harness.
After removing the points plate and installing the Dyna and magnetic rotor, etc., I wired:
1. The black/white wires coming out into the black/white trigger wires in the coils.
2. The red wire coming out of the Dyna tapped into the Orange white wire that splits to provide power to each coil. (Going to hit this with the CRM soon)
Pretty straight forward stuff, right? Next we followed the instructions for the static timing. I hooked up an extra turn signal I had:
- Negative wire going to the battery negative
- Positive plugged into the Black trigger wire coming out of the dyna
I tested both the light and ground I was using and both are fine. Battery is ~1 year old and is charging/holding charge fine (SH775 and all the regular GSR recommended "charging stuff").
Manually advancing the engine, the light never lights up. Connecting it between the black trigger wire coming out of the dyna and the black trigger wire going into the coil, it lights up. Same goes for White. Getting 12v between the dyna output wires and the coils at all times which I found weird.
I thought "lets try starting it" and it starts up easily and runs fine. Obviously we still need to properly set the static timing but it seems like I'm missing something here. From what I remember, we did everything exactly the same from when I did this to my GS750. Any tips?
After removing the points plate and installing the Dyna and magnetic rotor, etc., I wired:
1. The black/white wires coming out into the black/white trigger wires in the coils.
2. The red wire coming out of the Dyna tapped into the Orange white wire that splits to provide power to each coil. (Going to hit this with the CRM soon)
Pretty straight forward stuff, right? Next we followed the instructions for the static timing. I hooked up an extra turn signal I had:
- Negative wire going to the battery negative
- Positive plugged into the Black trigger wire coming out of the dyna
I tested both the light and ground I was using and both are fine. Battery is ~1 year old and is charging/holding charge fine (SH775 and all the regular GSR recommended "charging stuff").
Manually advancing the engine, the light never lights up. Connecting it between the black trigger wire coming out of the dyna and the black trigger wire going into the coil, it lights up. Same goes for White. Getting 12v between the dyna output wires and the coils at all times which I found weird.
I thought "lets try starting it" and it starts up easily and runs fine. Obviously we still need to properly set the static timing but it seems like I'm missing something here. From what I remember, we did everything exactly the same from when I did this to my GS750. Any tips?