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down shift and up shift without clutch?????

This is a discussion on down shift and up shift without clutch????? within the General Discussion forum, part of the Dirt Bike - ATV - Suspension Forums category; hey guys im riding a yz 125 people are telling me that i dont have to use the clutch to ...

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Old 09-11-2007, 03:42 AM
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Default down shift and up shift without clutch?????

hey guys im riding a yz 125 people are telling me that i dont have to use the clutch to down shift and up shift ! kay i heard that u can up shift but down shifting without the clutch i heard u can mess ur bike up is this true??? i wanna know bad!! thanks guys
!!
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Old 09-11-2007, 07:22 AM
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Usflag Re: down shift and up shift without clutch?????

It's better to use the clutch and hold the throttle wide open when upshifting, it keeps the rpm's up, especially on a 125. Downshifting is'nt that big a deal since there's not that much stress on the tranny because your braking at the same time.
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Old 09-11-2007, 08:16 AM
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Default Re: down shift and up shift without clutch?????

This is as touchy as the oil question but, I think my arms would fall off if I used the clutch for every shift. My clutch use is for starting, keep the revs, and not killing the motor coming down from warp speed (2 gear or more downshifts). I like the grooves on my clutch basket to be on both sides!
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Old 09-11-2007, 04:51 PM
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Default Re: down shift and up shift without clutch?????

My mechanic who does all the work we cant says upshifting with no clutch is very bad for bikes. Downshifting is not an issue if the RPM's are not overly high. Others have different opinions but this guy seems very knowledgable and I trust what he says.
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Old 09-11-2007, 05:57 PM
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Default Re: down shift and up shift without clutch?????

Quote:
Originally Posted by noobish View Post
My mechanic who does all the work we cant says upshifting with no clutch is very bad for bikes. Downshifting is not an issue if the RPM's are not overly high. Others have different opinions but this guy seems very knowledgable and I trust what he says.
This is good info to have. I shift countless times (up AND down) during a race without engaging the clutch. I change the oil regularly and always notice bits of aluminum in the drained oil. I may upshift under load a little too often but I'm thinking the load on the engine would determine the amount of damage that may occur. I try to shift while letting off the throttle during acceleration and I try not to shift during "engine braking" as I'm decelerating.
Don't hold back here, guys. We're just a bunch of weekend warriors anyway. Let's learn all we can!
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Old 09-11-2007, 06:08 PM
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Default Re: down shift and up shift without clutch?????

Shifting with/without clutch?

Shifting

Shifting Question

Shifting without a clutch

Who uses the clutch?

Shifting

shifting down without the clutch

agian, shifting without clutch?
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Old 09-11-2007, 06:28 PM
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Default Re: down shift and up shift without clutch?????

I think (read, my opinion) that clutchless upshifts are easier on the trans than holding the throttle wide open as you use the clutch to shift. That poor clutch baskets and plates............ouch!
As far as the gears go............they are straight cut and the manufacturers design them that way rather than 'helical cut' for ease of clutchless shifting.
I haven't used the clutch for shifts in almost 30 years...............and that never caused me any trans problems.
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Old 09-11-2007, 07:01 PM
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Default Re: down shift and up shift without clutch?????

Baron you da' man. That saved me 3 min of searching...but you needed to add this one....the important one.

busa....click that watch it and use it.... please [Only registered and activated users can see links. ]
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Old 09-11-2007, 09:12 PM
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Default Re: down shift and up shift without clutch?????

For what it is worth, Gary Semics says to use the clutch for upshifting but it isn't needed for down shifting.

My thoughts are:

Its your bike, your footing the repair bill for it. Do whatever works for ya.
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Old 09-11-2007, 09:56 PM
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Default Re: down shift and up shift without clutch?????

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Originally Posted by CRF731 View Post
For what it is worth, Gary Semics says to use the clutch for upshifting but it isn't needed for down shifting.

I agree. Mixed reviews everywhere on this topic. All in All I have to say CRF says it best. Your footing the bill on it. I would love for a pro to step in and say what they do. Then again, they might not give two crfjedi's how they shift.
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Old 09-12-2007, 09:04 AM
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Default Re: down shift and up shift without clutch?????

Quote:
Originally Posted by kenyz View Post
Baron you da' man. That saved me 3 min of searching...but you needed to add this one....the important one.

busa....click that watch it and use it.... please [Only registered and activated users can see links. ]
That was aw some

CRF (aluminum) that's from your clutch hub or basket....That is how I know I am riding well, when I have the flakes. With a aftermarket hub/basket it is greatly reduced, the OEM cast seems to spider and chip where as the forged don't give way and flake nearly as much.

I hope the trans is steel not aluminum>
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Old 09-12-2007, 12:12 PM
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Default Re: down shift and up shift without clutch?????

You read my mind Dhi!! If you really want to be easy on the transmission during what some would call powershifting, learn to use the kill button. I am fascinated by those who think that a stab at the clutch, probably not timed all that well with the foot, actually has a chance to really release at those speeds.

Push your bike with the clutch in and tell me what you think. Think about how torque converters work with no actual metal parts touching, only the fluid to make the bond. If clutching makes you feel better, then use it. If you don't want to feel like the money you are paying to the knowledgeable mechanic is going to waste, then follow his instructions.
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