gack
Registered
I'm hoping someone here can steer me in the right direction on this one, I'm definitely not a mechanic but always work on my own vehicles when I can. So I at least have enough tools to get into trouble apparently.
Bought an 02 Busa two years ago with 28,000Km on it, 45,000 now, ran good but needed cosmetic stuff. I ran 87 octane in it at first, tried a tank of premium and the bike started missing at 7k and up, changed back to 87 and all was good again. Put a tank of premium in again this year, same issue so siphoned it out, put 87 in and it ran better but not smooth and missed at higher rpm's so I put new plugs in, NGK iridiums and it ran beautiful, very smooth all the way from slow to fast but about 1500 km later while on a 4 hr ride on a 90 degree day with about a quarter tank left in the tank it started missing again up at around 7k. next day I pulled the plugs to have a look and all where the right colour and everything seemed to be attached correctly. put it back together and now the only way it will start is if I give it enough throttle to get it up to 2.5 to 3k rpm, even then it's barely running, missing badly, smells rich and had some smoke migrate out of the throttle side pipe when I turned it off. tonight I pulled the fuel pump out and it looked pretty good, that little screen had a bit of goop but not bad really, sprayed it with brake clean and put it back together, no difference. Also pulled the plugs again and all 4 showed rich, only ran it for a few seconds the few times I started it.
where do I go from here Boy's, I'm thinking it sounds like a sensor? ecu maybe? I'm not happy with the electrical connection at the back of the air box, not the temperature sender but whatever the other one is, seems to go together fine but doesn't click together unless i hold the clip down so seems to be all the way in at least. I have an appointment at Suzuki on Tuesday but would rather get it fixed myself.
Bought an 02 Busa two years ago with 28,000Km on it, 45,000 now, ran good but needed cosmetic stuff. I ran 87 octane in it at first, tried a tank of premium and the bike started missing at 7k and up, changed back to 87 and all was good again. Put a tank of premium in again this year, same issue so siphoned it out, put 87 in and it ran better but not smooth and missed at higher rpm's so I put new plugs in, NGK iridiums and it ran beautiful, very smooth all the way from slow to fast but about 1500 km later while on a 4 hr ride on a 90 degree day with about a quarter tank left in the tank it started missing again up at around 7k. next day I pulled the plugs to have a look and all where the right colour and everything seemed to be attached correctly. put it back together and now the only way it will start is if I give it enough throttle to get it up to 2.5 to 3k rpm, even then it's barely running, missing badly, smells rich and had some smoke migrate out of the throttle side pipe when I turned it off. tonight I pulled the fuel pump out and it looked pretty good, that little screen had a bit of goop but not bad really, sprayed it with brake clean and put it back together, no difference. Also pulled the plugs again and all 4 showed rich, only ran it for a few seconds the few times I started it.
where do I go from here Boy's, I'm thinking it sounds like a sensor? ecu maybe? I'm not happy with the electrical connection at the back of the air box, not the temperature sender but whatever the other one is, seems to go together fine but doesn't click together unless i hold the clip down so seems to be all the way in at least. I have an appointment at Suzuki on Tuesday but would rather get it fixed myself.