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General Questions:

What is an Automatic Clutch?
Core EXP, EXP and z-Start Pro are all auto-clutches. An Auto-Clutch is a centrifugal force actuated clutch that automatically engages and disengages the clutch in relation to RPMs. The Auto-Clutch automatically feeds out the clutch in the same way you feed out the clutch lever when starting from a stop. The rider only needs to turn the throttle to increase RPMs, to engage the clutch and go. It is not an automatic transmission, you must shift the gears. The benefit is that the auto-clutch will do the “feed” automatically and consistently, allowing you to be free to focus on other aspects of your riding. All three Rekluse Auto-Clutches allow retention of one’s clutch lever to manually override the auto-clutch at all times. As with any standard clutch, the rider can still “feed”, “fan”, “slip” or “pop” the clutch and do motocross style starts. Rekluse Auto-Clutches are performance enhancing for full sized bikes and ATV’s. See Performance for more info.

How will it affect my riding?
Rekluse Auto-Clutches make it easier to go fast, instill confidence and tame the gnarliest terrain. The auto-modulation of the clutch increases traction and virtually eliminates engine stalling. All this leads to more fun, easier to ride and increased rider performance. For the motocross racer the bottom line is that you will improve your lap times. You will put down better traction, leading to more efficient and ultimately faster cornering. By decreasing wheel spin and increasing traction, your launches off the line will improve substantially--putting you at or near the front of the pack. For the off-road racer, you will be able to navigate technical sections much easier than before. Rekluse Auto-Clutches eliminate the necessity of modulating the clutch in tight terrain, which will allow you to concentrate on the terrain in front of you. This will enable you to get better traction and develop better throttle control. Plus--because the Rekluse Auto-Clutches disengage when your engine speed drops to idle--stalling will be a thing of the past. You'll be able to ride longer, faster, and with less fatigue than ever before.

Can I still use my clutch lever like normal?
Yes. All three Rekluse Auto-Clutches allow retention of one’s clutch lever to manually override the auto-clutch at all times. As with any standard clutch, the rider can still “feed”, “fan”, “slip” or “pop” the clutch and do motocross style starts.

Do I have to use the clutch lever?
You have the option of using the clutch lever at any time, but it is not necessary. Some riders find that they rarely use the clutch lever to override the Auto-Clutch and choose the Rekluse Brake Kit.

Is it adjustable?
Yes. All three Rekluse Auto-Clutches are adjustable to suit rider preference and conditions. The stock set-up is what we have discovered to be the best setting that will satisfy most riders. However, you may refer to your Owners Manual or Tuning Guide to adjust the settings to your liking by changing springs, wedges and idle speed.

How does it work?
A traditional manual clutch uses springs to push a pressure plate into the clutch disks to keep the clutch always engaged until the rider pulls in the clutch lever. Pulling in the clutch lever pushes the pressure plate away from the clutch disks to manually disengage the clutch. An automatic clutch keeps the pressure plate away from the clutch disks when the engine is off or at idle. When the throttle is applied and the engine speed increases, a centrifugal device within the clutch expands, engaging the clutch disks.

Can I bump-start with an auto clutch?
All three Rekluse Auto-Clutches can be configured to bump-start the engine in the event your normal starting system fails. However, they can not be configured for bump-starting on the go like a standard clutch. One must stop the motorcycle and make an adjustment (on some Rekluse models this requires tools) to bump start and then make another adjustment to continue riding once the engine fires. Bump-starting can be done to get you home.

Do I have to modify my existing clutch parts?
No modification of your existing clutch parts is necessary with any of our current Rekluse clutches.

Can I go back to a stock setup?
Yes, due to the fact that no modification to your existing clutch parts is necessary. Generally, you can return a bike to stock manual set-up in about 30 minutes. With the addition of a manual mode pressure plate, the Rekluse Core EXP can be converted from auto to manual mode and back to auto mode in 5 to 10 minutes.
 

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$800 l HEARD
 

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One thing I'm curious about. What about lifting to shift? I know you need to unload the trans like on my bikes and sport atvs for the sequential to shift. Does or how does the rekluse allow full throttle shifting?
 

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l WOULD SAY HAD YOU COULD TALK THEM IN INSTALLING IT FOR FREE. THROW IT IN WITH THE DEAL.
 

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I called recluse they said it takes them 3-4 hours to install.Im trying to get a idea before I get mydealer to put it in.Ive done them on my ktm before.Not bad.But I don't know hhow much you have to tear apart yxz to get to it
 

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I called recluse they said it takes them 3-4 hours to install.Im trying to get a idea before I get mydealer to put it in.Ive done them on my ktm before.Not bad.But I don't know hhow much you have to tear apart yxz to get to it
You need to convince the dealer it is a 2 hour job, or they will charge you for 6 hours -- since most of their technicians will have never done an install like this before.
 

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Good luck asking the dealer to trow in the labor for free. They know that if you don't buy the thing, there are 5 people waiting in line that will. Might have better luck in 6 months or so, after the frenzy slows down.
 

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I can't see any cons to having this installed, other than costs. It will idle in gear without the clutch being depressed? That will alleviate a lot of concerns with guys wanting to do some moderate crawling in the middle of a long desert ride I would think!
 

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I see this as a Must add for slow technical trail riders.

I am very familiar with the rekluse because I have used them for years in all kinds of dirt bikes.

The only negative I have saw is they do SAP a little bit of power away from the wheels. The 450 dirt bikes have plenty of power so you won't really notice it. Feels like running a flywheel weight. (Which I guess it is basically more weight on the end of the crank so it is just like a flywheel weight.)

Anyhoo, on the 250 4 stroke bikes, you can definitely feel the power difference. For most people, the advantage still oout weighed the negative of a little power loss.

I am definitely going to try it with out a rekluse to begin with, but if my leg gets tired, or if I just get too lazy, then a rekluse is a Great option to have!!
 

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I've installed four over the last few years -- and my mechanical skills are highly suspect. I spend most of my time looking for tools and or screws that roll under the work bench.

The old Rekluses (Z-Start) had steel and Tungsten balls that were something of an annoyance to install and adjust.

The new Rekluse EXP 3.0 just has iddy-biddy weights that are self-contained within the expanding disk which is the functional component of the system



On a dirt bike, simply lean the bike on the left side and take off the clutch cover (so you don't have to drain the oil).

I'd bet the key issue with the YXZ is how easy it is to get to the clutch. If it is right there out in the open, you're golden (just drain the oil and dissemble). If it is covered by stuff, you'll have to remove stuff.

On bikes with good clutch baskets and such, you can keep the internals in place. All you have to do is remove a clutch fiber (or two) to make room for the EXP disk and use the Rekluse pressure plate. Note -- Rekluse may also have you replace the clutch hub if they think it is not up to snuff. At that point, you'll likely be using Rekluse fibers and steels as well. Replace the cover and you're done with that side.

The stated cost of the YXZ Rekluse of $800 (vs $899 for a full system in a puny dirt bike) makes me think that either Yamaha got a screamin' deal of some sort, or that some portion of the usual full Rekluse EXP 3.0 kit is not needed.

Only one more installation step, and Rekluse has made that easy as well. The other nifty component to the Rekluse 3.0 is the "Adjustable Slave Cylinder." Remove the stock slave cylinder, replace it with the Rekluse Adjustable Slave Cylinder, and then bleed the system. Adjustment on the bike is as follows. Turn the adjuster hex-head all the way in and then back it out X-number of turns and a few ticks. That gives you the ballpark setting. Then adjust for clutch movement when revving (on a dirt bike, anyway). Not sure how the adjustment will be tuned on the YXZ.



They shoulda come up with this baby years ago. It makes adjusting the plate pressure so much easier. No more taking the clutch cover off and fiddling with adjustments. All adjustments are made with that.

Most dirt bikers *love* the Rekluse and keep it on. You can tell who is a Rekluse owner because of the scrawny, atrophied clutch hand. If I removed my Rekluse, I'd have to spend a few hours over technical terrain to relearn how to use my clutch. And yes, I still use my clutch lever when riding. I use it to get the revs up on race starts and coming out of corners. I also use it on steeper hill climbs if I want the clutch to slip more.

…and some folks don't like the Rekluse at all. Not quite sure why. They don't like the feel. They couldn't get it adjusted to suit them. But they are a minority.

Here is the system for the 2011 YFZ 450 (a very inadequate comparison, I suppose) -- https://rekluse.com/product/core-exp-clutch-3-0/
 

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The clutch cover is wide open, the slave on the other hand looks to be a challenge. Ill post pics when my kit comes in if someone doesnt beat me to it. I may do a pictorial of the install if anybody cares.
 

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Hopefully the dealer install charge is minimal or as someone else said maybe you can get them to throw that in with a machine purchase. I don't mind doing a little of my own wrenching but if I screw something up I am on the hook. I would pay the dealer a couple hundred to let them worry about it if anything unexpected happens. I think this upgrade is definitely high on the list. Thanks to all that have contributed in helping us understand how it works and to anyone who will take the time to do a pictorial of the install.
 

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Gobs of Rekluse Installation tutorials (Video and Written) on the web so you can get the basic gist.

the slave on the other hand looks to be a challenge.
Fortunately there is not a whole lot going on with the slave cylinder… There might be cursing, however.

The good thing about Rekluse is that they have phone lines for tech advice and I while I didn't call them often, they are very helpful.
 
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