High-G FJR Junkie!
Join Date: Jan 2013
Location: Millgrove, ON, CA
I can only suggest how to perhaps increase the idle speed...... you can see the spring-loaded throttle mechanism on top of the throttle bodies... follow the rubber tube up from the idle adjust screw, check the mechanism is clean, etc. I don't have one in front of me (no FJR any more), and can't remember if there is an adjustment screw that might give you more range, perhaps not.
You also may have reached the limit in part because of where the throttle sync screws are set. Maybe take the opportunity to re-do the sync, but first remove all the screws, clean the tapered tips, maybe spray some Seafoam or other solvent in the passages.... careful, check the parts diagram for a sync screw, don't want to lose the little spring, o-ring and teeny brass washer.
Next, reinstall all the sync screws to minimum 3/4 turn out, maybe set reference #3 at 7/8 turn out (at 1 turn out, it tends to get loose, you could stretch the little spring I suppose. All it does is provide friction force). Now sync all the rest at 1100 rpm. You may find you have a little more range.
To test the Ivan theory on the yellow wire, if you manually move the throttle to a higher rpm, does that voltage increase? I know nothing about which yellow wire.....
However, there is an idle adjust screw on the wax motor mechanism where you can increase the range.
Keep yer stick on the ice....
2014 FJR1300A - Root Beer (sold)
2009 CBF1000A - Sienna Red
1999 VFR800Fi - Pearl Shining Yellow