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Hi all
Following on from my thread about kicking and ignition issues I've managed to get hold of a timing disk and a strobe. So this afternoon I packed a bag with tools and a rag and rode up the hill behind the house - I try not to sit around revving my bike out my front door for my neighbours' sake.
I had my Gopro on my jacket and used that to capture some clips of the results. I trimmed the video down to two clips of the top cylinder and one of the bottom. That video is here https://youtu.be/pGAgC1za6cM
The attached images below are the top twice and the bottom twice, plus a snap f the disk so one can see the marks.
This is what I saw:
With the cable attached to the upper spark lead, the strobe would show the upper case mark to be a degree or more to the left of the line marked V-AA on the disk.
With the cable on the lower lead, it showed the other/lower/left case mark to be close to the line marked V-AA on the disk (not the one marked O-AA)
In both cases, there was no change at all when increasing RPM.
In addition, the lower header had become very blue, whilst the upper had no bluing at all.
So, can anyone here interpret this? I've read that incorrect/reversed wiring (of what exactly?) can cause there to be no advance and that a blue header also indicates this.
I get the impression that I probably don't need to adjust the pickups and that this will largely resolve with wiring fixes.
Any comments on how to proceed are appreciated.
Regards
Rob
Following on from my thread about kicking and ignition issues I've managed to get hold of a timing disk and a strobe. So this afternoon I packed a bag with tools and a rag and rode up the hill behind the house - I try not to sit around revving my bike out my front door for my neighbours' sake.
I had my Gopro on my jacket and used that to capture some clips of the results. I trimmed the video down to two clips of the top cylinder and one of the bottom. That video is here https://youtu.be/pGAgC1za6cM
The attached images below are the top twice and the bottom twice, plus a snap f the disk so one can see the marks.
This is what I saw:
With the cable attached to the upper spark lead, the strobe would show the upper case mark to be a degree or more to the left of the line marked V-AA on the disk.
With the cable on the lower lead, it showed the other/lower/left case mark to be close to the line marked V-AA on the disk (not the one marked O-AA)
In both cases, there was no change at all when increasing RPM.
In addition, the lower header had become very blue, whilst the upper had no bluing at all.
So, can anyone here interpret this? I've read that incorrect/reversed wiring (of what exactly?) can cause there to be no advance and that a blue header also indicates this.
- I'm unsure whether the AA mark is the initial or the advanced mark.
- I'm also unsure why the test on the lower lead pointed to V-AA and not O-AA.
- What I am sure about is that the wiring is wrong.
I get the impression that I probably don't need to adjust the pickups and that this will largely resolve with wiring fixes.
Any comments on how to proceed are appreciated.
Regards
Rob
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