Topic: Timing advancer springs.

[DV Red Herring]

In the never ending quest to make this bike run better, I have read about people shortening the advancer springs. Mine don't seem sloppy and the mechanism works as it should. My questions are: What is the advantage of shortening these springs if they are in working order already? Anyone care to chime in with real world comparisons?

[Airborne 82nd]

Look at the FAQ under The Thoughts Of HondaMan. Here is a little cut and paste from there.
 Late K1/Early K2: The spark advancer was delayed to full advance at 2500 RPM
 Late K2 The spark advancer was given 2 degrees more "spread" with the same curve as the K2 early models. The static spark setting was reduced by that 2 degrees for better idle.
 K3  The spark advancer was unchanged from late K2.
 K4 slower spark advance (full advance at 2800-3000 RPM), but 2 degrees less total advance. (We modified a lot of these advancers for more advance.)

It seems to me a shorter/tighter spring would just hold the weights firmer. Would this delay the advance?

Also this is a good book if you plan to do your own work.
http://sohc4shop.com/catalog/index.php?cPath=22&osCsid=df85612ed9e946b50b2292045889be6f


 

[uksparky]

Be nice to have the advance come on slower  rather than full advance at 3k it was at 2500 until i tightened one spring ..i  have pinging if i load the engine too soon i high gear.........high comp pistons/KH cam

[DV Red Herring]

Thanks Airborne, for pointing me to the FAQ. What a wealth of info!
Uksparky, you only did one spring?

[uksparky]

Yes one spring is enough i just curled the end around so it tightened the spring did not cut