07-05-12, 07:07 AM
That's the flattest air/fuel ratio line I've seen from any of the Fazers I've 'Ivanised'. Seriously, it's very smooth and only a fraction above where it should be. 
A single run for a fiver says it all, I think. To offer a completely off-the-plot 'cure' based on that doesn't say much to me. Or maybe it says a lot ... like, "we're drumming up business today, please come back and let us charge you £150 for cock-all".
The 'cure' is to slide the air/fuel sensor a little further into the silencer. Pay a bit more attention to tyre pressure, strap-down tension, possible drive chain losses etc and not back out of the throttle a shade approaching peak rpm.
If you are still unconvinced, Ian, try another dyno house with a good reputation and ask them to do several runs to confirm best peak power. Also, get them to show rpm rather than mph on the chart. Without knowing which gear was used, the mph readout is not much use here.
Mike
A single run for a fiver says it all, I think. To offer a completely off-the-plot 'cure' based on that doesn't say much to me. Or maybe it says a lot ... like, "we're drumming up business today, please come back and let us charge you £150 for cock-all".
The 'cure' is to slide the air/fuel sensor a little further into the silencer. Pay a bit more attention to tyre pressure, strap-down tension, possible drive chain losses etc and not back out of the throttle a shade approaching peak rpm.
If you are still unconvinced, Ian, try another dyno house with a good reputation and ask them to do several runs to confirm best peak power. Also, get them to show rpm rather than mph on the chart. Without knowing which gear was used, the mph readout is not much use here.
Mike