spdjunkey
Registered
First, this site and the knowledge passed by it's members is unbelievable. I've been a member since I bought my Busa. I don't have many post but I'm always on here reading and learning. With that said, I've searched every possible combination of words for solutions to my problem. Hell, just today I went through the last 1500 threads started in this section. I've found plenty of topics similar to my issues but none that seem to completely fit. Despite finding so many, most threads die off without a solution. Ok, now that I'm done whining, here's what I got.
I have a 99 with 7100 miles that I bought from the original owner in Dec of 08 with 3400 miles on it. It has a Yosh full tri-oval dual tip exhaust, BMC air filter and PCIII. I have not had it custom tuned yet. I know a generic map is no where close to what I need, but I don't think it is the root cause of my problem. I'm just trying to get the bike running the best I can before I shell out the money for the tune.
I have been dealing with rough idle, low mpg, running rich, hesitation, extreme on/off throttle, hard starting when warm and charging issues (maybe). Since all this started I have taken the fuel pump apart and removed all screens, to include the ones on the injectors, and the filter. I put an external filter in between the pump and fuel rail. I've synced the throttle bodies and adjusted the TPS, both numerous times to make sure they stay correct. I've changed plugs and run multiple cans of injector cleaner through it. I've adjusted the throttle cables. I have tried every map that Dynojet has that would load into the PCIII. Some are better than others as far as the hesitation and richness but the idle roughness is always there. I know there are other things that I should do, like getting the injectors professionally cleaned. I just wanted to get some input before I aimlessly go spending more money.
All of my problems sound like they are fuel related. But I have recently noticed that the dash lights and headlight flicker at idle. If I put the fast idle at say 2500 RPMs they just flicker faster and the RPMs fluctuate by about 500. If I don't use my battery tender regularly, the battery won't have enough juice to start the engine. The battery is two and a half years old, so most likely needs replacing. But this morning I checked the battery and the rectifier as described in the manual. They both checked within tolerance. I didn't get any further because I broke one of the leads on my multimeter.
After all this, I'm just looking for opinions on whether one issue is causing the other or do I have multiple problems. Any insight or guidance is greatly appreciated. Sorry, for writing so much. And even more sorry if none of it makes sense. I'm just at the end of my rope with this. I just want it to run the way it should. Thanks for reading now please help me fix it.
I have a 99 with 7100 miles that I bought from the original owner in Dec of 08 with 3400 miles on it. It has a Yosh full tri-oval dual tip exhaust, BMC air filter and PCIII. I have not had it custom tuned yet. I know a generic map is no where close to what I need, but I don't think it is the root cause of my problem. I'm just trying to get the bike running the best I can before I shell out the money for the tune.
I have been dealing with rough idle, low mpg, running rich, hesitation, extreme on/off throttle, hard starting when warm and charging issues (maybe). Since all this started I have taken the fuel pump apart and removed all screens, to include the ones on the injectors, and the filter. I put an external filter in between the pump and fuel rail. I've synced the throttle bodies and adjusted the TPS, both numerous times to make sure they stay correct. I've changed plugs and run multiple cans of injector cleaner through it. I've adjusted the throttle cables. I have tried every map that Dynojet has that would load into the PCIII. Some are better than others as far as the hesitation and richness but the idle roughness is always there. I know there are other things that I should do, like getting the injectors professionally cleaned. I just wanted to get some input before I aimlessly go spending more money.
All of my problems sound like they are fuel related. But I have recently noticed that the dash lights and headlight flicker at idle. If I put the fast idle at say 2500 RPMs they just flicker faster and the RPMs fluctuate by about 500. If I don't use my battery tender regularly, the battery won't have enough juice to start the engine. The battery is two and a half years old, so most likely needs replacing. But this morning I checked the battery and the rectifier as described in the manual. They both checked within tolerance. I didn't get any further because I broke one of the leads on my multimeter.
After all this, I'm just looking for opinions on whether one issue is causing the other or do I have multiple problems. Any insight or guidance is greatly appreciated. Sorry, for writing so much. And even more sorry if none of it makes sense. I'm just at the end of my rope with this. I just want it to run the way it should. Thanks for reading now please help me fix it.
