StephenRC45 wrote:I use the HRC PGM and the F3 flywheel. I'm 2deg advanced over stock but retard the top cylinder 0.5deg so thats only 1.5deg over stock. Its all very dependent on engine tune though.

Hi Stephen,

Given that it's very dependent on engine tune, which makes sense, what state of tune/ancilliaries is that motor running?

How does one retard the cylinders indivdiually on an NSR? Is that a physical modification you've done, or is it facilitated via your HRC PGM? Are NSRs timed slightly differently per cylinder from the factory?

Finally, given whatever the availability of the HRC PGM is (I don't know what it is, but old HRC parts seem to get rare quick enough), what's your opinion on the Zeeltronics/Ignitech units? Worth a play if you've got the coin for dyno time (given that the units themselves are appropriately priced).


NSR-Lover,

Detonation is a pretty effective killer on 2 stroke motors, so it's worth making sure every other part is tip top before heading down the track of revising your ignition curves.

If i plugchop will i see lean or rich mixture on the plugs? thats the way i'll decide what is best?

Anybody have a comment on that for the man?