CBR 600F3 1995 - 1998 CBR 600F3 Forum

Can the F3 break loose over 70mph?

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Old Jun 22, 2010 | 06:42 PM
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Procrastinator's Avatar
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Exclamation Can the F3 break loose over 70mph?

Today while riding on my friends private track, at about 70mph I dropped down a few gears (One more than I should) and punched it. The bike jumped to life and was accelerating hard, when all of a sudden, the RPM went way up and the acceleration reduced, so I hit the next gear and I continued accelerating fine.

My question....
Does the F3 have enough power to break the rear tire loose at speeds over 70mph? If not, my clutch had a major intermittent slip-up!
 
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Old Jun 22, 2010 | 07:10 PM
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Guessing clutch or you hit sand hardcore
 
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Old Jun 22, 2010 | 10:41 PM
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You probably hit the rev limiter, feels like a stutter (or valve bounce from the old days of tappets) 70 mph (112 kph) is nothing for the 600 & will scream it's little head off up to 230-240 (140-150), then tapper off. Just make sure you change up a tad earlier.
 
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Old Jun 22, 2010 | 10:56 PM
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Pacemaker,
Thanks for your response, but I don't think you understood my post.
I was trying to say my bike rev'd way up at the end of winding out a gear.
At which point my engine rpm increased as my acceleration decreased.
This was not a rev limit scenario, it was either a clutch that broke free for a second and started to slip, or it was caused by my back tire breaking traction (Burn-out).

I was wondering if anyone has ever got their CBR to burn out when traveling over 70mph?
If not, I will look into a new set of clutch plates.
 
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Old Jun 22, 2010 | 11:03 PM
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Can't say that I've tried to break the tire loose at 70 on any bike. But I'd think there'd been more signs of it, if it did happen, than the RPMs going up while the acceleration tapered off.

Some physical sign, like the rear should have at least wiggled a bit.
 
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Old Jun 22, 2010 | 11:32 PM
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Yeah I think your right, it was too smooth and even looked back for signs of tire smoke, but there was none.

Although my clutch never slips, I think under the condition, it must have.

I don't think the 600 motor has enough power to break traction at upper speeds.

Thanks for your input.
 
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Old Jun 22, 2010 | 11:36 PM
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I've lost traction on manhole covers while accelerating before. "Smooth" isn't a word I'd use to describe what I felt
 
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Old Jun 23, 2010 | 12:01 AM
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Originally Posted by Procrastinator
Today while riding on my friends private track, at about 70mph I dropped down a few gears (One more than I should) and punched it. The bike jumped to life and was accelerating hard, when all of a sudden, the RPM went way up and the acceleration reduced, so I hit the next gear and I continued accelerating fine.

My question....
Does the F3 have enough power to break the rear tire loose at speeds over 70mph? If not, my clutch had a major intermittent slip-up!

I totally know what your talking about, i noticed this the other day it sorta revs out quicly for the last few thousand rpms before the red line but you dont feel some major acceleration that you would expect...
 
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Old Jun 23, 2010 | 05:44 PM
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You cant spin up the rear at that speed unless:
1. Its wet/dusty (still very very unlikely).
2. You are leaned over and drifting (very unlikely in your case).
I race this bikes and have yet to see anything like this happening.
Clutch slipping i'd say.
 
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Old Jun 23, 2010 | 11:15 PM
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I've had the same kind of experience before. Was the clutch, needed new springs. The ones in it were from the previous owner and the clutch was very spongey feeling. New springs solved the issue of slippage under power.
 
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