Thrasher
Husqvarna
A Class
I could not upload files in the PM area.
The bottom map doesn't make sense to me. If you were to ask the question, "is it good to advance the timing at 2750 RPM and 2% throttle?" the map would suggest, "yes". But if that is true, why would it not be good to advance it at the same engine speed and 5% throttle, or 20% throttle? The bottom table if FULL of those kinds of inconsistencies.
Using the same parameters, the top table advances timing to the same degree but maintains the advance in a rational way throughout increase throttle settings. The lines show potential engine/throttle accelerations (there are an infinite number of potential lines depending on what the rider is doing). Notice that no matter what the line is, the progression of advance is consistent. If you tried to draw different lines through the bottom table you would have advances and relative retarding within any given line.
The numbers on the top table are consistent with the bottom table and no more radical. However, they all seem very radical to me and I would start with something significantly more conservative.
(opps, I messed up part of the 60% throttle for > 8000 RPM. Point is still made.)


The bottom map doesn't make sense to me. If you were to ask the question, "is it good to advance the timing at 2750 RPM and 2% throttle?" the map would suggest, "yes". But if that is true, why would it not be good to advance it at the same engine speed and 5% throttle, or 20% throttle? The bottom table if FULL of those kinds of inconsistencies.
Using the same parameters, the top table advances timing to the same degree but maintains the advance in a rational way throughout increase throttle settings. The lines show potential engine/throttle accelerations (there are an infinite number of potential lines depending on what the rider is doing). Notice that no matter what the line is, the progression of advance is consistent. If you tried to draw different lines through the bottom table you would have advances and relative retarding within any given line.
The numbers on the top table are consistent with the bottom table and no more radical. However, they all seem very radical to me and I would start with something significantly more conservative.
(opps, I messed up part of the 60% throttle for > 8000 RPM. Point is still made.)

