Several months ago I put half a bottle of fuel injector cleaner in my 954 and it caused the bike to run rich and it fouled the plugs. I bailed the gas with FI cleaner in it and put new gas. I put new spark plugs in asap which set me back $60. (I realize now that I could have cleaned the plugs) About 100-200 miles later, I tried to start the bike and it wouldn't fire up. I've talked to a few dealerships and they said it might be a sensor or something is clogged. Any ideas? What could the FI cleaner have done to the bike and if all of it is out of the bike, what should be checked?