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Post by Deleted on Sept 9, 2013 17:32:17 GMT -5
Just wondering how the belt works under throttle vs no throttle. Are the rollers/sliders still pushed out just from the shaft spinning? Have a slight rattle that i can only hear under throttle but goes away when coasting.
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Post by alleyoop on Sept 9, 2013 17:33:34 GMT -5
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Post by PCBGY6 on Sept 9, 2013 18:25:31 GMT -5
DX
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Post by rockynv on Sept 9, 2013 20:27:04 GMT -5
If they didn't stay out it would be like shifting a car or truck back down to first gear and you would not be coasting any more. In fact if they are not all the way out they can sometimes ride further out when you coast in the absence of driveline tension trying to pull the belt lower into the front pully when you have just enough throttle to maintain speed. No real neutral just a neutral balance on the throttle.
Now if you don't maintain neutral balance on the throttle and roll completely off then that is the equivalent of down shifting and applying engine braking so the rollers would start slipping back down to the bottom of the ramps as the engine lost RPMs
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Post by Deleted on Sept 9, 2013 20:29:01 GMT -5
HOw quickly does the variator close once you let off the throttle while cruising?
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Post by alleyoop on Sept 9, 2013 20:43:22 GMT -5
Fully retracted WHEN the Clutch Disengages, then your free wheeling as if it was just on the center stand idling.
Alleyoop
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Post by rockynv on Sept 9, 2013 20:43:24 GMT -5
HOw quickly does the variator close once you let off the throttle while cruising? Tha rate at which the variator opens all depends on your current speed, weight and the incline of the roadway. It all based on the rpm of the engine, weight of the rollers, angle of the ramps, contra spring stiffness and stress on the belt. The variator is the front drive pulley which closes up to force the belt out to the max diameter of the drive faces as engine speed increases to approximate shifting to a higher gear while the rear driven pulley on the clutch is forced open to make the rear driven pulley spin faster than the front drive pulley. When you roll off the throttle the lack of centrifical force on the rollers allows the front drive pulley to open so the belt drops to the center of the drive pully and the driven pulley can then close back up and push the belt back out to the first gear or starting position. |
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Post by skuttadawg on Sept 9, 2013 22:13:54 GMT -5
Yes it will coast at times and if you give it just a lil throttle it will rengage and help on braking which saves wear on brake pads and shoes . If you push off with your feet only at the top of a hill it will coast and when you give it throttle may be a slight hesitate then accelerate . This is what many call " tranny drag " not like on Jerry Springer LOL . Most of the time you can slow down by just letting off of the throttle instead of using the brakes .
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Post by rockynv on Sept 10, 2013 4:08:44 GMT -5
The clutch usually won't disengage until you are going less than 5 mph so coasting with the clutch disengaged and free wheeling isn't something that normally happens when you are going at 35+ mph. Coasting in the truest sense doesn't happen with a conventional CVT drive with centrifical automatic clutch until you have slowed down enough to disengage the clutch or you roll the bike down a hill without engaging the clutch.
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Post by tarkus on Sept 10, 2013 4:30:21 GMT -5
here is a good video showing the basics of CVT.
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Post by Deleted on Sept 10, 2013 7:18:42 GMT -5
That was cool!
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..BAD TO THE BONE..
Main Jet
