have a question about TDC when fitting HES sensor

[ashjon]

Why do you need a TDC when fitting the HES, the plate can be fitted same position as the faulty one and the pully sets in same position, I am confused about this.

 

[fatnfast]

I guess it's all about setting the timing up etc.
Personally, I have just refitted a previous one in the exact position as the replacement. I marked how the old one was fitted, then transferred the mark to the new one. It all worked just fine.

 

[ashjon]

Thank you for your input, thats what I was thinking, if you scribe marks from the old sensor and fit the new sensor there, and the pulley has fixed location, and the bike runs then you can take to a service for them to set the exact spark timing.

 

[Roger 04 RT]

Assuming your old timing was right, all you need is to put the old one back. It only moves a couple degrees in each direction.

However if you want, here is a quick easy way to do it: http://advrider.com/index.php?threads/timing-adjustment-no-tools-needed.79207/.

 

[Posh Pete]

Very handy link that. What about making it a sticky o wise and beneficent Mod?

 

[ashjon]

Hey Roger that link is gold, thank you so much.

 

[ashjon]

Went through the link Roger supplied above, gives info on the timing of hall sensor. Fixed bike, fired up first time , no issues. Thanks again for the link Roger.