[QUOTE="Sandgroper"] If I was in 4th gear , then this goes to show the improvement of the re-jetting because it certainly felt like I was in top gear ( 5th ).[/QUOTE] yeah, that'd show a "negative 20% improvement", right? [QUOTE] Next time I go for a run to check the revs , I will make sure that I am in TOP gear to confirm the revs.[/QUOTE] You do that and get back to us, eh? :-) big