Install a 16 Tooth Front Sprocket

[jonathan180iq]

Originally Posted by PG tips

I might try that too, but its not extra HP Im after in particular (is it a noticeable difference though?)
Making first useful and the prospect of the engine not reving as high as it seems to, is more what Im after, this seems to be described as the effect of changing the sprocket from a 15t to a 16t.

Definitely. Lowering engine cruising speeds was my original intent and for that there is not an easier mod.

Also, as Raul said, up-jetting to a richer fuel mixture will help keep exhaust gasses a bit cooler and possibly help in engine longevity.