gear could be slipping. mine did this. kinda felt like a little jerk. only when i got on it. if taking it easy then nothing. pretty common if you drag race or are real hard on the gearing. i posted a thread on my rebuild about this very thing

Looking 4 some help.... When I'm in 2nd gear, and crack the throttle, the bike hesitates around 7000-8000 RPM. This only happens in 2nd gear. Any thoughts on what might be the problem?
06LE Busa - Full Muzzy exhaust, PCIII, K&N filter, Galfer SS Brake Lines, Tobin Seats, PM Wheels, Pit Bull Spiked Collar, Illumiglo gauges, 42 th rear sprocket, Speedo-healer, custom front fender & rear hump. . . And in case you didn't notice, CHROME!
gear could be slipping. mine did this. kinda felt like a little jerk. only when i got on it. if taking it easy then nothing. pretty common if you drag race or are real hard on the gearing. i posted a thread on my rebuild about this very thing
06 busa red/black,alien head,ecu editor
1397 kit
air shifter,shift light
Are you sure it is a hesitation and not a slip?
03 AE
my 2007 did that sounds like undercutting time
my 06 does that, only under WOT acceleration. soon as i get a chance i'm getting the trans undercut.
Thankful for his Friends...
2006 Raiment White Hayabusa
Lumen Junkie in Residence
Why retros are safer than HID kits
I guess it can be called a slip as well. It only happens under hard acceleration, and only in 2nd gear. What does undercutting the trans mean?
06LE Busa - Full Muzzy exhaust, PCIII, K&N filter, Galfer SS Brake Lines, Tobin Seats, PM Wheels, Pit Bull Spiked Collar, Illumiglo gauges, 42 th rear sprocket, Speedo-healer, custom front fender & rear hump. . . And in case you didn't notice, CHROME!
How many miles are on the bike?
Do you power shift, or do you use the clutch all the time?
Also gen one or two?
04 LIMITED BUSA, 1397 kit, intake cam swap, 50hp wet NOS kit!
92 GSXR 1100/1216 THE BABY I JUST CANT GIVE UP
99 BUSA, SOON TO SEE THE ROAD AGAIN
10K miles on the bike. Gen 1, and I always use the clutch to shift
06LE Busa - Full Muzzy exhaust, PCIII, K&N filter, Galfer SS Brake Lines, Tobin Seats, PM Wheels, Pit Bull Spiked Collar, Illumiglo gauges, 42 th rear sprocket, Speedo-healer, custom front fender & rear hump. . . And in case you didn't notice, CHROME!
Sound to me like the motor need to come out! Sorry to say, but the busa's have had the same problem for all the years.
Second gears are notorious for going bad!
As for the fix, it has already been said to undercut the transmission.
What undercutting achieves, is the gears will engage more than they do stock! In simple terms.
04 LIMITED BUSA, 1397 kit, intake cam swap, 50hp wet NOS kit!
92 GSXR 1100/1216 THE BABY I JUST CANT GIVE UP
99 BUSA, SOON TO SEE THE ROAD AGAIN
Thanks 4 the info. Any idea how much $$ this will set me back? I might consider this work now that the riding season is over (cold weather)
06LE Busa - Full Muzzy exhaust, PCIII, K&N filter, Galfer SS Brake Lines, Tobin Seats, PM Wheels, Pit Bull Spiked Collar, Illumiglo gauges, 42 th rear sprocket, Speedo-healer, custom front fender & rear hump. . . And in case you didn't notice, CHROME!
04 LIMITED BUSA, 1397 kit, intake cam swap, 50hp wet NOS kit!
92 GSXR 1100/1216 THE BABY I JUST CANT GIVE UP
99 BUSA, SOON TO SEE THE ROAD AGAIN
if you can pull the motor, ape will do it for 328. that's every gear. i would also assume there's some sort of shipping charge also.
Thankful for his Friends...
2006 Raiment White Hayabusa
Lumen Junkie in Residence
Why retros are safer than HID kits
I do most of the work on my bike, but I do not have the tools or confidence to remove the engine. Guess I better prepare to get ripped by the dealer or speed shop.
06LE Busa - Full Muzzy exhaust, PCIII, K&N filter, Galfer SS Brake Lines, Tobin Seats, PM Wheels, Pit Bull Spiked Collar, Illumiglo gauges, 42 th rear sprocket, Speedo-healer, custom front fender & rear hump. . . And in case you didn't notice, CHROME!
Just got word from my dealer, who I have trusted with my '06LE through 49,400 miles, that the transmission has been causing my skips at 5200 RPM and then again at 7200 RPM in 2nd gear. He is quoting $2500 to $3000 to pull the tranny and have it worked on. Is this realistic? We started looking at the K&N air filter, then the Smart Ivan TRE, then the front and rear sprockets and chain, then the fuel pump which was throwing only 27 PSI at high RPMs.
Considering that having the trans gears themselves machined(undercut)is $400 to $500, I'de say they're rippin you one.Just got word from my dealer, who I have trusted with my '06LE through 49,400 miles, that the transmission has been causing my skips at 5200 RPM and then again at 7200 RPM in 2nd gear. He is quoting $2500 to $3000 to pull the tranny and have it worked on. Is this realistic? We started looking at the K&N air filter, then the Smart Ivan TRE, then the front and rear sprockets and chain, then the fuel pump which was throwing only 27 PSI at high RPMs.
Christ is Lord

