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Ignition timing

  • Thread starter Thread starter rollingroland
  • Start date Start date
R

rollingroland

Guest
Hello guys,a question from a novice in the field. I am going to describe the results of the light bulb ignition test on my '78 GS550E, and I'd appreciate your opinion on it.
On the F1-4 test, the bulb lights right on the F1-4 mark, and stays on until just before the F2-3 mark .
On the F2-3 test, the bulb lights on the F2-3 mark but this time it stays on until it reaches right between F1-4 and first T mark.
Is that normal? Thank you.
 
Not sure how "normal" it is, but it's showing that the points for 2&3 are just a bit wider than 1&4, taking them just a bit longer to close.

That little amount probably won't hurt anything, the important part is when they open and your light comes ON.

.
 
Last edited:
I did not start it yet.Ignition timing is the last thing I am doing after complete carb job,valve clearance adjustments,timing chain adjustment,Oring intake boot replacement and so on.
 
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