i have a cbr 600 f sport from 2002 i've changed the spark plugs and it starts i ride it tot and when i was on the street my tachometer started to go crazy and the exaust popped out..........and now wont start anymore help me please

 

Go back and verify you plugged the wires on in the correct order. First guess but sounds probable the spark plug wires are out of order

 

Could you elaborate on the "won't start anymore." Does it crank over? Is the battery dead? Did it act like this before the plugs were changed? Has it ran fine since they were changed?

I suspect you have battery/charging system problems. Do you have the right tools to check the system?

The F4i has a coil for each plug. There are no wires to cross. But there could be an issue with the electrical plugs on the coils. If your problems started right after a plug change, retrace your steps.

 

i don't think he would be able to make it out the driveway if the firing order was wrong, but yea, retrace your steps if the issue was not there before you changed the plugs, seems like a brain-fart error on your part if it was ok before

 

yes after i've changed the spark plugs i started it and used the bike,my bike actually made this problems before i change spark plugs and it smells gas like it didn't burn....the wires are in a correct order because it's writed also on the motor the order i have to plug them.....can it be a fuse or something because when i try to start it it's spins but won't start.....appreciate your help

 

did you regularly ride the bike before ? if your smelling gas it could be not firing or an injector blocked, (old fuel) id check the fuses and spark plugs again, looking for crap in them..

 

does your fuel pump prime, ie- do you hear the fuel pump when you put the key in the ignition?

 

yes the fuel it's pumped but no ignition,if i get pushed by someone else it's starts but not from the starter

 

Maybe you caught something else. Electrical, stator, etc.

 

sounds like it might be the ignition relay. bypass it to see if ur bike starts.