Shift Light

[XS1100DRAGRACER]

I know most of you do not Drag Race your XS's. I really need to install a shift light onto my bike, I was told by non Yamaha riders that in order to do that, I have to change my ignition, to work with a shift light. Is this true? Any suggestions?? Also, a racer friend of mine gave me some Accel Coils for my 80XS, has anyone ever installed these? What kind of plug wires should I use? Thanks!!

[turbopete]

I'm no expert but I think many shift lights work by reading the signal to No1 coil (in your case No1 and 4). I can't see why it wouldn't work, just that you might need to set the light to double the RPM for it to work right.

[TopCatGr58]

Check the tech tips, about using replacement coils. Most use the solid copper stranded plug wires!

Yeah, I thought the shift lights were just an "idiot" light set to come on at a certain rpm, so it measures the coil trigger signals, just like most standard electronic tachs, but since our coils fire once for every rpm, whereas a single coil for a 4 cylinder engine fires twice for every rpm, so hopefully the shift light/tach has a setting for a 2 cylinder engine?
T.C.