Originally Posted by Idatoe
I do not know about adjusting the timing. Please enlighten
Down 'ere most are interested in economy. At least from a $ point of view. Some however look at carrying 5 litres less of fuel 1000 kms up and down sand hills as very functional and of tremendous benefit in the longer term.
As the second spark means you have (for a short period) a second flame front so you get a faster burn ... so you will need less advance ... and less range of advance .. so you reduce the travel on the advance weights ... that is what I recall from various discussions other people were having some time ago. As I have not done it I don't have the actual figures. Just vague recollections. Talk to your hole provider, they should be able to give you the info on timing.
There is a difference between calling one of my bikes a dead beaver and a lily ... it maybe as sweet when called by any name but the illusions!