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Not so much, now.<\/p>\nI have done a little tweaking of the fuel pressure, so far to good effect.<\/p>\n
With the bike warmed up and idling, I reduced FP from 45 to 20 psi. Idle is a bit smoother and though I do not yet have any sort of EGO sensor, my built-in unburned hydrocarbon detector (nose) seems to indicate that it’s not nearly so rich. No-load reving reveals MUCH less black\/gray smoke as well. I was able to create a rather James-Bond-y smoke screen by reving up against my fuel cut rev limiter. Not so much, now.<\/p>\n
I hope to get in at least a short ride this afternoon, if for no other reason than to see how Buzz rides now.<\/p>\n
The theory I’m working on is that a required fuel setting of 1.8 for (4) 245cc\/min injectors is just too rich and the pulse width probably can’t get any shorter reliably.<\/p>\n
By reducing the pressure, I have essentially changed my injector flow rate to 166cc\/min. The injectors may not atomize the fuel quite as well at this lower pressure, but the observed effect on Buzz seems to be an improvement.<\/p>\n","protected":false},"excerpt":{"rendered":"
I have done a little tweaking of the fuel pressure, so far to good effect. With the bike warmed up and idling, I reduced FP from 45 to 20 psi. Idle is a bit smoother and though I do not yet have any sort of EGO sensor, my built-in unburned hydrocarbon detector (nose) seems to … Continue reading Seat-of-pants pressure tweaking<\/span>