I Have A Gsxr 1000 01 And Since I Have Changed My Sparkplugs And My Coolant My Bike Runs Hotter And The Fan Stop Working. I Changed From Ngk 9 To Ngk 8 Is It Possible That I Have A Higher Burning Spark Plug That Causes My Bike To Run Hotter? And My Fan Just Stopped Working, It Works Becuz I Jumpered It Out And It Turns When I Do That. What Could Be The Problem And Someone Said It Could Be My Fan Relay Where Is That Located?
Ok you said that you changed your coolant and spark plugs, I don't think that plugs would mess with your cooling system much especially just moving one temp range. So on to coolant, Did you make sure you got all the air out? Did you start the bike and let it get to operating temp so it would start circulating the coolant (the thermostat opens at 180*) and then did you have to ad anymore?
How hot it your coolant temp? (your fan switch turns the fan on at 221* and then shuts back off at 212*)
You can check your temp sensor if you have a multi meter or ohm meter:
At 68* your resistance should be ~ 2.45 K ohms
122 ~ .811 K ohms
176 ~ .318 K ohms
230 ~ .142 K ohms
Also check your cooling fan Fuse
Ok and to answer your question about where the relay is. Its under your seat in front of your battery carrier. it located on the right side of the fuel pump relay. to test disconnect the connector and use a multi meter to check for continuity between pin 1 and 2, there should be no continuity. now use jumper wires one connected to the positive terminal of your fully charged battery to pin 3 on the relay and the other jumper from your negative terminal on your battery to pin 4 on the relay, now check for continuity between pin 1 and 2, there should now be continuity.
Sorry for the long post but I have my Haynes right here and couldn't resist.
If you don't understand anything I have said then you should probably take your bike to a shop.