black and wet (the spark plugs silly) gives an indication the bike is running rich (ie- putting too much fuel in)
this could be for a number of reasons
*air filter clogged - Either clean and re oil it if it's an after market like K&N (IMO get rid of it if it is) or replace it if it's a OEM filter
*someone has messed with the ECU and made if over fuel - take it to someone that ahs a yoshie box and can reset the fuel mixtures to factory (or zero map). I am not talking about a add on box here. The factory ECU has the ability to be played with. Do not add a PC (or similar) yet until it's sorted
*One of the sensors is playing up - read
this thread. the first couple of steps telll you how to get the trouble codes form the ECU.
this post will explain the codes. I doubt this is the problem as in all your post you have never mentioned the Fi light is on.
*The O2 sensor is reading incorrectly - unplug it (don't remove it) and go for a ride to what the result is. The Fi light will remain on and a code will be displayed and stored in the ECU. Don't panic the ECU uses a default code and the bike will run.
*One or more of the injectors is faulty or dribbling - the easiest fix for this is replacement.
*The ign coils are faulty - again replace
*The coils are not getting enough spark to the coil - how well do the spark plugs fit into the coils
*The coils may not have been fitted to the plugs properly - were they tight when you pulled them off.
*The plugs have shit themselves - as you've got the plugs out, put new ones in (you were guna do that anyways right) remember to gap them correctly before screwing them in
More can follow after we hear more if you like.
cheers
