Cymarc Tuning

Yes, I'm sure it's a great product but it's the import duty we seem to get hammered for eh?


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Perhaps it would be easier for Mark to send You (Roger) some data files as I have in the past.
Instead of opinions how about posting data, even basic snips such as this one I logged AF-XIED setting 7.
Please can we see some data files of the Easy.

 
+1 to Mistacat. If someone with a GS-911 takes a start up log from a bike with an Easy, either of us could plot what's going on with the O2 sensor. That would answer a lot of questions.
 
@Mark - Have you fitted to a 2017 model GS / GSA at all? Would be interested in feedback.
 
So these Lambda shifting devices adjust/correct the fuelling under closed loop control. What happens at higher revs where it running open loop? If BMW have (as is likely) set the air fuel ratio weak the add on boxes won't attempt to sort it it.
Presumably


Sent somehow.
 
So these Lambda shifting devices adjust/correct the fuelling under closed loop control. What happens at higher revs where it running open loop? If BMW have (as is likely) set the air fuel ratio weak the add on boxes won't attempt to sort it it.
Presumably


Sent somehow.

When you add fuel with lambda-shifting like the af-XIED, first fuel gets added in the closed loop area, which is broad on the R1200. Over time, the average fuel added in Closed Loop operation becomes part of a table of long term trims. Those long term trim factors are applied everywhere. As a result, the average fuel added in the closed loop area is also added to the top end too.
 
Clever stuff. Thanks for that. I asked because my vibration problems happen at the top end of the closed loop range into the lower end of the open loop range (4K to 5.5K revs).
 


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