Total Motorcycle Community Forums

J.R. Bob Dobbs wrote:Rev it up and see, but do so at your own risk.

My 95 Nighthawk 750 "redlines" at 8600rpm, and the motor shuts off around 9k. I have encountered the limiter a few times, the first time by mistake, it lets me know when it's absolutely positively time to shift My user and shop manuals make no reference to it.

she redlines @ 15K-16K rpm.

i've already pushed her several times as far as 14.5K rpm. and it still felt like it can still push even at 14.5K rpm.

Have you done your first oil change yet?

Sevulturus wrote:Have you done your first oil change yet?

saturday, i will. already got 572 miles on the bike.

i didn't wanna follow the soft break in for this bike like i did the 1K.

i just rode it and tried to vary the rpms w/o paying attn to the 7.5K rpm limit the manual stated.

jmillheiser wrote:downshifting to 1st and dumping the clutch at 130mph would do more than cause the engine to become disaquinted with its internal parts, you are also pretty much garunteed to have a nice specacular crash as you lose control of the bike from the back end losing traction.

Sadly, not any more. With slipper clutches and other watered down MotoGP technology, any bozo can get away with stupid stuff like that.
No more tough love it seems.

Mintbread wrote:

jmillheiser wrote:downshifting to 1st and dumping the clutch at 130mph would do more than cause the engine to become disaquinted with its internal parts, you are also pretty much garunteed to have a nice specacular crash as you lose control of the bike from the back end losing traction.

Sadly, not any more. With slipper clutches and other watered down MotoGP technology, any bozo can get away with stupid stuff like that.
No more tough love it seems.

I'd like to see how a slipper clutch handles the motor's internals having a violent dispersion throughout the crankcase.

It may prevent the rear tire from locking, but would still be an interesting journey.

Vern, you need to not worry about eeking all the performance out of your bike and concentrate on improving your skillset. You will probably take years of professional riding on tracks to reach the max potential of your 750. Don't try it with the neophyte skills you currently have, or we'll have a winner in our pool of how long this next bike lasts.

I've noticed that when I am actually getting on the throttle hard, rev limiter comes pretty quickly. Hard to back off intentionally when I am getting moving that quickly and redline comes so quick. if I aint gonna bother to be getting moving that quick I dont really bother to be that high in the rev band to get close to redline.
Do the back-torque reducing clutches prevent over revving as well or just rear wheel locking?

The rev limiter is basically firing the coil every other power cycle for each cylinder.

On my bike the rev limiter kills spark to 2 cylinders and "exceptional people" the other two until the rpms come down. It effectively falls on it's face.

Even with a slipper clutch you can still do damage with stupid downshifts.

To find out what it sounds like just find a squid...strike up a conversation.... act unimpressed, ask it to rev up its bike......


eventually this little bit of social engineering will deliver you with the the er unique sound of the engine reaching the limiter, dropping a couple of thousand rpms, and then slamming right back to the limiter again.

come to think of it. i wonder *in a labratory type of envireoment* what the absolute max rpms are for a modern 750 or 1000 engine would be without a limiter. just let it accelerate up until it popped.