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Old Sep 21st, 2009, 7:34 am   #1 (permalink)
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Will a slipper clutch reduce engine braking?

Hey all, still loving the Hyper, but I have to admit that I'm growing weary of having to fight against the 1100's strong engine braking. Nearly every time I let off the gas, I slide up a little on the seat. I try to combat it with physical strength, slipping the clutch, etc., but in stop-and-go traffic, it gets very old and tiring very quickly.

Would a slipper on the Hyper reduce the engine braking effect? I don't need it to prevent wheel lock-up - I don't ride that aggressively - but if it smoothed out low/medium speed stop-and-go lurchiness, I might consider it.

Thanks!
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Old Sep 21st, 2009, 9:34 am   #2 (permalink)
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You might want to think about getting a aftermarket exhaust. The flapper valve sucks.
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Old Sep 21st, 2009, 10:30 am   #3 (permalink)
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ciao activator -

having had the DP "bucci" strada slipper clutch on my hypertard for over a year now, i can advise that the engine braking is not reduced ... but rear wheel hop when downshifting is reduced to point that you cannot feel it at all.

perhaps this is what you are looking to obtain ... perhaps not.

i can also advise that installing a lightweight flywheel will not reduce engine braking, as is sometimes suggested. in fact, a lightened flywheel will increase engine braking feel to the rider, as there will be less rotating mass in the engine.

my suggestion to reduce engine braking feel when riding: ride smoother on deceleration ... roll off the throttle sooner and smoother when needing to slow down. in the stop and go traffic you mention, try holding on to the fuel tank covers by squeezing with your knees.

ciao,
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Old Sep 21st, 2009, 10:32 am   #4 (permalink)
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Quote:
Originally Posted by lugger View Post
You might want to think about getting a aftermarket exhaust. The flapper valve sucks.
Huh???
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Old Sep 21st, 2009, 11:45 am   #5 (permalink)
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I agree the DP slipper clutch works great but not for your issue. Try running a higher gear and installing some Tech Spec grip pads I have them and they work great.
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Old Sep 21st, 2009, 11:46 am   #6 (permalink)
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Johnny- Wheel hop is not the problem. I'm talking about the fact that any time I let off the throttle - even a little - it feels like I've grabbed the front brake. Sure, I can combat it by gripping the tank, arm strength, being smoother, etc, but it gets annoying when riding in town... I'm constantly scooching back on the seat.

It sounds like the slipper is not the answer to this dilemma. Hmmm...
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Old Sep 21st, 2009, 12:05 pm   #7 (permalink)
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G2 throttle, and some type of fuel management to smooth things up if you have not done so already. The G2 allows much more precise off idle throttle control.
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Old Sep 21st, 2009, 12:10 pm   #8 (permalink)
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"Snatchy Throttle" Syndrome?

Activator's complaints sound to me like symptoms of the "Snatchy Throttle Syndrome" caused by the overly lean stock set up.

Before resorting to lighten flywheels and slipper clutches, I think he would be well advised to make sure all other engine parameters are properly tuned, regardless of which exhaust or ecu are being used. Without so doing, my guess is a lighten flywheel would actually make it feel worse.
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Old Sep 21st, 2009, 12:29 pm   #9 (permalink)
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agree ...

my comments on slipper clutches and lightened flywheels point out that these will not provide less engine braking.


Quote:
Originally Posted by BillyD View Post
Activator's complaints sound to me like symptoms of the "Snatchy Throttle Syndrome" caused by the overly lean stock set up.

Before resorting to lighten flywheels and slipper clutches, I think he would be well advised to make sure all other engine parameters are properly tuned, regardless of which exhaust or ecu are being used. Without so doing, my guess is a lighten flywheel would actually make it feel worse.
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Old Sep 21st, 2009, 1:31 pm   #10 (permalink)
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I think part of the problem is the Hyper's long front end. The extra fork travel really amplifies the feeling of engine braking, front end dive and regular braking.

The first time I rode a Monster after being on my Hyper for a while, I thought to myself how terrible the brakes were. After riding the Monster for a while, I discovered that the brakes were fine, they just didn't feel as strong because the front end does not dive nearly as much on braking.
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