Just tossing out a few ideas, disregard if they have already been checked/confirmed...
When you say that the "coils lost their tension tabs" do mean that the coils are kinda just "floating" and not seating properly on top of each sparkplug? Have you verified that you are actually seeing a spark for each coil/wire as well?
Are you running any sort of Power Commander or aftermarket fuel tuning device (if so, how's the map/tune - is it pig rich?) ?
I'm not one to throw parts at a problem to fix things either but if that FPR is the original one, it might not hurt to install a new one while you are digging around (more as part of "general maintenance" program, if you will).
G'luck troubleshooting, let us know how it gets resolved !
- "coils lost their tension tabs"
Yep they are just floating around - have been since i got the bike 2 years ago - not saying its right though.
I have checked for spark with the coils out and my spark - when i get it - is a crappy orange(checked using all 12 of my cleaned used plugs).
I have been using a PC3
with a "two brothers full system" map (with the PC3
manually leaned out). My actual exhaust is a kerker can with the exhaust valve fully open and the flapper secured open. Also have a DNA air filter.
Changed the oil and filter and carried out a valve adjustment about four months ago.
Fitted a manual cam chain tensioner at the same time.
Bypassed the exhaust servo using the "Servo replacement strategy" instructions from "Fireblades.org" (thank you to whoever wrote it).
Pretty sure the FPR is the original one, I would change that but I too am not one to do "swapnostics"(rather than diagnostics), rather be certain than throw money down the drain.
I just came out of the garage from testing the correct wires from the ECU to the coils and am getting between 115 - 187 volts on all coils depending on the RPM.
My next move is to get new coils - seems the next logical step.
going to take about 2 weeks for them to get here from ebay, but one good thing is the bike still goes.