GS550E with ND coils and Kokusan points??

[Vloukole]

Thank you 2BRACING. It was a bad condensor.
Bike runs great.
It still wont start without bump starting it. The starter pulls the battery down to 8.5volts and the battery is fully charged.
It is a starter from a bigger GS. Could that make the difference in voltage drop and amps needed to turn and spark? It starts immediately when bumping.

[Steve]

The starter pulls the battery down to 8.5volts and the battery is fully charged.
It is a starter from a bigger GS. Could that make the difference in voltage drop and amps needed to turn and spark? It starts immediately when bumping.

The battery may be "fully-charged", but that does not mean that it's a good battery.
It is possible that you have a very marginal battery and you are just charging it as much as it can handle, but it's not enough.
To test that, connect jumper cables from your car, but make sure the car is NOT running. If the bike starts well, it will be obvious that your battery is just not up to the task. Ideally, your voltage should not drop below 11 while cranking.

Surprisingly, there are very few differences in GS starters. The same part number starter works on the '80-85 450 and '81-'83 650. There is a second number that handles everything else, from the '77 400 through the '81 1000G. A third part number handles the '82/'83 750 through 1100. A fourth number is used exclusively on the 1150.

I know I have used a different starter on some of the smaller bikes, but I don't know which way I went. I might have used a 650 starter on a 1000, or it might have been an 850 starter on a 450. The only difference I noticed was that I had to add some clearance between the two mounting bolts. Other than that, everything bolted right in. I don't know what the electrical difference might be.

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