this is the only post you've made that is starting to make any sense yes lets set the mixture to 14.7:1 whatever that setting needs to be i will agree with.
but according to the guy who actually tested his it was already stoic to begin with before he made any adjustments.
so if your going to give that advice i will support it.
Wait! you've read me wrong! Or I've worded my goals badly.
We all hard e-starting efi bike owners do NOT want stoic idle mixture. an AFR 14.7:1 IS BAD for e-start (too lean)
We want the maximum bang we can get out of that measly amount of charge the decomp has allowed to stay in the combustion chamber when cranking.
We abhorr stoic mixtures, as they're neither max. power nor max range, they are only relevant if we'd be running catalytic converters gods forbid.
And considering the fact that my (just my) 2012 WRF runs at stoic mixture with CO set to -26
even you should be able to infer that the "presumed" stock setting of CO= 0 is very very rich for my bike.
If you took the time to watch my vids, you'd KNOW that richening CO stepwise towards 0 made my engine stall.
Which means that CO= 0 for my bike is a mixture "rich way past the max. power setting", that's why the bike stalled!
Hence for my bike any CO setting of 0 (factory default?) or any positive value is extremely bad for getting the maximum bang from the charge.
What I want do make people try is to forget about the absolute numbers that tool is showing. They are irrelevant!
Nothing in such a large scale mass production item like the WR/YZ/Quad engine has the budget to actually calibrate every engine+ECU combo befor shipment.
People simply should play with the mixture screw on FCR bikes and the CO setting on EFI bikes until the found the seewt spot of easiest e-start.
It is totally irrelevant if this results in the screw being 1 turn further out then the '03 owner's manual stated or if they end up at -20 CO.
If the engine needs that setting for easiest starting it is the correct value!
Hey, if this happens to be CO= 0 for someone's bike, weird, but fine with me.
I'm pretty shure, once someone has actually set the CO right (e.g. slightly richer than stoic mixture)
and dialled in 1900 rpms idle, the bike will fire up hot, in gear, first button press.
Edited by WRF-Rowdy, January 02, 2016 - 08:16 AM.