FYI Good Read on Fuel and Motorcycleshttp://cmgonline.com/content/view/3312/57/Written Feb 2011 and has Kawasaki InfoQuestion: Anyone know if the C10 and C14 use knock sensors to detect detonation and retard the ignition timing?example ....
NOT JUST COMPRESSION RATIOS
This is pretty interesting. A list of Kawasaki's current offerings showing the differing compression ratios in relation to bore size; the larger the bore, the lower the CR. NOTE - Gary sent us minimum octane values too, which we have added so you can see how all the factors inter-relate. Complicated, no?. Anyone care to come up with a formula/graph based on this?
Chart provided by Gary Comer, Canadian Kawasaki Motors.
Some motorcycles today also use knock sensors to detect detonation and retard the ignition timing, which has the effect of running the engine cooler to counter the knocking, and it’s these bikes that are most likely to display a loss of power when using a lower-grade fuel than recommended.
The result with this setup is knock-free running, even when using low-octane fuel, however peak power also drops off as a result of the altered timing, though it must be stressed that this has nothing to do with the energy available in the fuel.