I picked up my 2000, 3k mile busa 300 miles from home and noticed 2 problems within the 1st 50 miles:
1) Too much vibration from 4k up. tracks eninge speed, not ground speed. I test drove a new busa and it didn't have this. Some thoughts (Remember, I'm a newbie):
a) Throttle body sync really messed up
b) chain too tight (will check tomorrow)
c) Bad coil on 1 cylinder
d) I don't want to think about d.
I know that TB syn is an issue - will it result in pretty significant vibration as the revs rise>
2) Hard to tell what it was, but there was some kind of intermittant noise/vibration that occasionaly made the engine louder for maybe 10-20 seconds at a time while cruising at 70-75 indicated (my wife says I was going 65-70 per her SUV speedo). Almost sounded like the clutch was slipping and the engine speeding up, but I dont think so. Possible ideas:
e) Cooling fans? I was going 70+, but it was 90+ degrees F out. could the fans com on? can you feel additional vibration when the fans are on?
f) Fuel pump? Does this come on periodically for about 15 seconds in a way you can feel?
g) sympathetic harmonic oscillation excited by #1 above
h) I don't want to think about h.
Any troubleshooting help would be appreciated.
Dave
1) Too much vibration from 4k up. tracks eninge speed, not ground speed. I test drove a new busa and it didn't have this. Some thoughts (Remember, I'm a newbie):
a) Throttle body sync really messed up
b) chain too tight (will check tomorrow)
c) Bad coil on 1 cylinder
d) I don't want to think about d.
I know that TB syn is an issue - will it result in pretty significant vibration as the revs rise>
2) Hard to tell what it was, but there was some kind of intermittant noise/vibration that occasionaly made the engine louder for maybe 10-20 seconds at a time while cruising at 70-75 indicated (my wife says I was going 65-70 per her SUV speedo). Almost sounded like the clutch was slipping and the engine speeding up, but I dont think so. Possible ideas:
e) Cooling fans? I was going 70+, but it was 90+ degrees F out. could the fans com on? can you feel additional vibration when the fans are on?
f) Fuel pump? Does this come on periodically for about 15 seconds in a way you can feel?
g) sympathetic harmonic oscillation excited by #1 above
h) I don't want to think about h.
Any troubleshooting help would be appreciated.
Dave
