If you think I'm pulling all that off again to make finding the terminals a little easy for something that in reality is not going to make any difference anyway you've got another think coming!
And there's me thinking you weren't listening
But I think your going all perfectionist on it and won't be happy til it's spot on...............................even though it won't notice much
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http://www.bidefordmotorcycles.co.uk
2014 CRMC Post classic Superbike champion.
2014 CRMC Post classic senior production champion. On a Suzuki Katana 1100
My bikes, Firestorm, Suzuki GSX-s1000 Katana, VFR800Fi. Projects, 1986 popup Katana, 3 XJ600’s
Tempest wrote:
Can someone explain a little more about it, what it's doing, what difference it makes, how important it is etc etc?
It sends a signal to the ecu which can advance and retard the timing. when correctly set it can smooth out low speed running, well that would be where it's most most noticeable. for a perfect set up the carbs should be correctly balanced, fuelling correct, valve clearances in spec.
On fuel injected bikes the ecu can do more with tps info like alter fueling.
http://www.bidefordmotorcycles.co.uk
2014 CRMC Post classic Superbike champion.
2014 CRMC Post classic senior production champion. On a Suzuki Katana 1100
My bikes, Firestorm, Suzuki GSX-s1000 Katana, VFR800Fi. Projects, 1986 popup Katana, 3 XJ600’s
To go a little deeper into what the ECU is seeing.
Temp isn't really critical with this ECU. It is more of a go\no go if you over temp and it goes to the default map then.
This leaves the RPM and throttle position as the signals used to set the advance.
So if you run a lower OHM reading, you will get less advance as the ECU "sees" it as a lower throttle opening
The reverse is true if you run a higher Ohm reading, The ECU now "sees" a larger throttle opening and gives more advance.
You can only go so far with these adjustments as if you go too far the ECU will go to default.
Why it is not all that critical to get an exact number, that has to do with how the ECU reads the TPS.
It does not look at the signal as 0 - 100 but in 10 degree steps.
So the ECU map has advance numbers for 0-10, 10-20, etc degrees of throttle opening.
Which means as long as you are kind of close the ECU will not know any difference.
Why the are set in the 800-900 range from the factory is emissions.
When they run in the engine on the dyno (yes all new bikes get a trip to the dyno) they have it running, at idle, sniffer in the pipes and they set it to the cleanest emissions.
That is why they are all different though in the same range.
Loud pipes don't save lives, knowing how to ride your bike will save your life.
