I have just done these mods, specifically, +6 CO, 3/4 turn out of the screws and put pig tails onto my TBs.
As others have experienced my engine light started to flicker, sometimes when accelerating and sometimes when deceleratring, all when driven hard. Needless to say, I panicked at the time. I think the pig tails will have to go, or be shortened at least.
One of the things the engine light coming on does, is to set up a Fault code in the Diagnostics. Because I need to make the adjustments to stop this happening, I needed to clear the Fault code. Easy when you know how.....but up untill then
I am sure many know how to get rid of them but some do not and the manual is bloody difficult to interpret so I will go through it .
1 ) Set the kill switch to "Off".
2 ) Press both dash buttons together and then turn the ignition on. Hold the buttons for about 10 seconds until the display clears and either "Co" or "Diag" is displayed.
3 ) If "Co" is displayed (as it would be if you had adjusted the CO recently) press the left button to swap it to "Diag".
4 ) Now press both buttons again for about 3 seconds and "d:01" will appear where the clock was. On top of this a number will appear to the left of it (where the ODO is). This number is the fault code if any for that specific diagnostic function. Each d:XX has itown particular part of the bike that it reports on.
5 ) Now press either left or right buttons to scroll through d:01 to d:70 (with gaps). Both buttons do it, one goes forwards and one goes backwards.
6 ) The Diags we are interested in are d:61 and d:62. 61 is the list of codes, 62 is the number of faults and the clear faults one.
7 ) Scroll through to you reach d:61 and watch. If any number other than 00 appears then you have faults reported. These are historical so you may not have the fault now. The reading will slowly scroll through all the fault codes.
I had 3 on mine, 14, 30 and 69. 14 is the one we are interested in, it shows either a blocked or open to air tube. This tube is the 3" long one that is removed or tapped into, from the left throttle body for ballancing. (Fault code 30 is the lean angle sensor - I must have laid the bike down or shook it with the ignition turned on at some time, fault code 69 is the wheel sensors - again I must have done something stupid to set this off).
8 ) Move on to d:62.
Because I had the 3 different faults, d:62 showed 3. Then turn your kill switch to "Run". This will reset the codes to 00.
9 ) Turn the ignition off.
If you wish to check them, go through the process again to confirm.
One of the good things about these bikes is that the diagnostics will adjust the engine management to accomodate various problems (according to the manual anyway). Either reduce power or shut the bike down to stop it destroying itself....nice.