I know this is not orthodox. I (like I'm sure most other folks) have spent my time searching out how to increase performance, not taking it out.
The best scenario is getting the bike having had a good bit of expierience. Sometimes it just doesn't work out that way. So for whatever reason an owner finds themselves piloting these things, what can a new owner do to de-tune the engine to a more controlled experiment without doing any permanant damage to either themselves or the engine.
Re-gearing the sprockets for more top end.
(Which seems contradictory, however it does decrease acceleration.)
A throttle with a cam (for more than a 90 degree idle to W.O.T.)
I thought about either an additional base gasket & or an additional head gasket. Reducing compression.
Would the base gasket just move the timing or not be worth the effort.
Another Idea I had was to adjust the power valve to less than optimal engagement. It would still move (preventing carbon fouling) but kick in a tad later with less than maximum results.
A set of fiberglass reeds ( less tesion ) and setting the ignition timing to the center mark on the stator plate.
And lastly, using a less than perfect expansion chamber.
I don't think any of this will actually do any damage to the engine, and reversing the process one step at a time may be alot less intimidating.
If anyone else has any suggestions or comment on the stuff I could think of please post up.
Tuck\o/