Help me please.

Gregory Waters · 04-13-2008, 5:19 PM

Man i just dont no what to do or what im doing wrong. my bike should be doing 10s easily cbr929rr is what im running lowered 2inch in the back in strapped down up front,full M4 exaust.Im lauching round 7g but cant seem to get in the damn tens. After i lauch i think im just rolling out the 1st gear. Honestly will it help if i just slam the throttle full to were it wont twist anymore as soon as i get outta the lauch and threw all my gears i think my 3rd gear is just about redlined when i get threw the 1/4 mile mark.Im going bonkers.

ucfmotorcycle1 · 04-13-2008, 5:22 PM

More info is needed to see where your problems are. How about giving us the exact timeslip data, 60' 1000' times and speeds etc.

Gregory Waters · 04-13-2008, 5:30 PM

1.9 60ft 1/8 7.36 103.24mphs 1000ft9.412 11.175at the 1/4at 127.49mphs

HCCAFan · 04-13-2008, 5:55 PM

Are you spinning first or is the nose coming up?

Gregory Waters · 04-13-2008, 9:42 PM

the nose coming up

blue1000rr · 04-13-2008, 10:11 PM

how are you tires?

ucfmotorcycle1 · 04-13-2008, 10:24 PM

You just need to practice your launching more. Its a clutch game. Theres nothing wrong with your bike as your trap speed is plenty high, (it will get higher when you launch better).

YOu need to shift all your weight to the front as much as you can to keep the nose from standing up. Then just slip the clutch out and give it more trhottle as it speeds up once your out of first its easier to keep it planted.

Also if you weigh well over 200lbs this is just hurting your times too.

cbr900racer77 · 04-14-2008, 2:46 PM

are you using your feet? It may look like people are just dragging them, but they are actually using them to help keep frontend down. Use them as leverage to put more weight on the front.

Gregory Waters · 04-15-2008, 6:05 PM

yeah i weigh 210 so i no thats killing me alot and im definitly going to put more weigth on the front. my tires are actually pretty good i am going to be definitly practicing alot on my lauches any idea on what a good lauch rpm would be on my 929. an im appreciating everyones help in this matter i dont feel like i fit in until i get my bike in the 10s around here.

oldnslow · 04-15-2008, 6:17 PM

You mentioned that you were near redline in 3rd.
Do you redline it in 1st & 2nd?

Gregory Waters · 04-15-2008, 9:33 PM

yeah i hit red line in 2nd first i didnt i hit the top of the red then shifted

cbr900racer77 · 04-15-2008, 10:32 PM

launch rpm is something you're gonna have to experiment with. Some people can launch a stock length bike near wide open and just work the clutch while some people leave at lower r's and mix the throttle with the clutch. There really isn't one set way of doing it. It's kinda like tire pressure, you have to let track conditions and your launch technique depict which pressure to use. When I first started back in 97 I was running 2.20 60 foots. Nobody goes out there and gets the hang of it right away, just keep practicing.

sadr · 04-16-2008, 2:09 AM

You can also learn from your runs and see at what highest or near there abouts RPM can you lunch (at the discovered point) where the rear is going to start spinning...if you got all the weight that you can afford to put into keeping the front from raising or in well balanced / managed state, then that's it...you can then do practice runs to play with and concentrate on the throttle to control the slippage (for the lack of a better word) back to the traction point and ride it on out...body position the same as lunch position...keep on shifting where you feel the front rising higher than you care for...if starts to.

All this, of course, easier said then done (for sure for me). But if you think you're doing everything down from your experiences and exploring, practiced, suggestions about, etc. Regards to shifts...how about increasing a tooth or two on the rear sprocket and (do runs again

hehehee he

but do an extra shift from the get-go..what would that be..third or forth?? and compare it...anyway...one more gear to go through this way. Good luck.

Nb: i don't know anything about 9.29k RR power band.

Nbb: i claim that i can not do anything in this post nor ride a tricycle

Gregory Waters · 04-16-2008, 11:26 PM

Thank you everyone for helping me an giving me info i greatly appreciate it and hey practice practice practice no doubt an im ready for it. everyone enjoy the riding season an ride hard take chances.

cbr900racer77 · 04-17-2008, 8:33 PM

Have you considered an air shifter and a shift light? If you don't want the hassle of installing an air shifter, how bout an electric one? I used a Dale Walker Powershifter for years, it worked great (on newer sportbikes that is, not so well on older bikes).