Do the 2013s Have a Clutch/Throttle Connection?

[user 213]

Your original input was not particularly useful, imho, or intended to be anything more than pot stirring. And had nothing to do with the OP. But it sure started the downhill slide of the thread nicely.

 

[Fred W]

Oh, and so that I am not accused of posting inflammatory nonsense:

Check this thread out: Click me

 

[wheatonFJR]

Man, I've been on the edge of my seat waiting for an answer on this. So many new things to explore! I may have to break down and get myself one of these Gen III thingies. Maybe I'll make beemerdon an offer once he gets his broken in and has the 600 mile service done. I'm sure his BMW won't miss it at all. We (Mrs. 'beam and I) can fly out in March when we normally do, pick it up and then we can ride it back. The only drawback would be the necessity to have it steam cleaned to have Skoot's 'hidden nasal treasures' washed off and sanitized.

I hope you get a 2013 Alan...that would make me happy to see one of the truly good forum guys get something they wish.

 

[networkguy]

I often start out this way (no throttle, slowly let the clutch out) when riding in S mode. I find the snatchiness of the throttle in S mode is such it can be a little revvy otherwise lol

 

[Old Guy]

If you klowns haven't noticed.....on any fjr you can have smooth take offs with out any throttle input. Just don't act like you're running a quarter mile. I have always watched other riders(albeit, in disgust) rev up their motors before letting the clutch out to get moving when it really isn't necessary.

Almost any motorcycle I've ever had will do this. As a matter of fact, it's a pretty good way to teach beginners how to find the friction zone. With the bike idling, release the clutch slowly until it starts moving. However, the original poster said that the rpm goes up with no throttle input. That would be new to me.

 

[tyronewildman]

If you klowns haven't noticed.....on any fjr you can have smooth take offs with out any throttle input. Just don't act like you're running a quarter mile. I have always watched other riders(albeit, in disgust) rev up their motors before letting the clutch out to get moving when it really isn't necessary.

Rev up their motors! When guys in my class do the vroom, vroom thing, I tell them what I read many years ago in a cycle mag. The editor said that this condition in caused by the rapid jerking of the right wrist when young men are coming up through puberty. That usually cures them! What do you think? Later, De

 

[Old Guy]

If you klowns haven't noticed.....on any fjr you can have smooth take offs with out any throttle input. Just don't act like you're running a quarter mile. I have always watched other riders(albeit, in disgust) rev up their motors before letting the clutch out to get moving when it really isn't necessary.

Rev up their motors! When guys in my class do the vroom, vroom thing, I tell them what I read many years ago in a cycle mag. The editor said that this condition in caused by the rapid jerking of the right wrist when young men are coming up through puberty. That usually cures them! What do you think? Later, De

I guess at my age I've forgotten my youth because I just idle away on either bike

 

[rfespinosa]

Tyrone

Re you question of fly by wire throttle - the computer needs to know what you are doing with your throttle grip, in the FJR that means the twist sensor is located by the throttle bodies and not at the handlebar. It's still ride by wire.

 

[blrfjr]

Did a little lunch ride with six friends from Phoenix to the Butcher Hook restaurant near Lake Roosevelt in Tonto Basin today. As I keep saying, the more I ride the Gen III the more I like it. 3,800 miles have been logged now on SN 70.
Anyway, at one stop along the way I was fiddling around and happened to observe that the RPM would slightly increase as I let the clutch lever out. I had never noticed anything like this before on my '05 or '08. Later, on a flat, paved, section of street, I experimented and found that I could make very nice -- albeit slow -- starts from a dead stop by merely letting the clutch out slowly and never adding any throttle. My idle RPM is right at 1,100 indicated but I swear it goes up 100 or 200 as the clutch lever is released.

Am I dreaming? Is this old info that everyone knows except me? Or is there some voodoo with the YCC-T that is being observed here?

I'd like some other 2013 owners to give this a try and see if it's the same on yours. (Not that it affects the way I will accelerate from a dead stop but just curious.)

Sounds like the same thing your car does when you turn on the AC. The ECU takes over and issues more fuel to keep the car running smoothly.

 

[tyronewildman]

Tyrone
Re you question of fly by wire throttle - the computer needs to know what you are doing with your throttle grip, in the FJR that means the twist sensor is located by the throttle bodies and not at the handlebar. It's still ride by wire.

rfespinosa

I'm not saying that I don't like what I got in the 2013 FJR but it could better. I was disappointed that it has throttle cables (read-mechanical stuff) instead of a Hall effect sensor in the twist grip. For my money, they should say that it has “Partial Fly By Wire technology”. Think I’ll ride my new ’13 FJR1300 over tomorrow, with its mechanical throttle cables, to see if the R1 or R6 has “Fly By Wire”. Come to think of it, When I bought my brand new H-D in ’53 it also had a throttle cable but my ’09 H-D has “Fly BY Wire” with no throttle cables. We’ve come a long way baby! Later,,, De

 

[odot]

Harley ahead of yamaha? Say it ain't so......

 

[Constant Mesh]

It is a chip controlled throttle.

Here's a discussion of the system when it was implemented on the R6.

https://www.mcnews.com.au/NewBikeCatalogue/2006/yamaha/yzf-r6/throttle.htm

https://www.yamaha-motor.eu/designcafe/en/about-design/technology/index.aspx?segment=About%20Design%20-%20Technology&view=article&id=442635

The twist grip cables operate the accelerator position sensor, a rheostat similar to the throttle position sensor.

There is a slotted arm linkage between the cable rotary cam and the throttle valve shaft. The cable rotary cam can't open the throttle valves but it can close the valves when the grip is released and returns to the resting position. The slotted linkage ensures that the rider can always close the throttle valves in the rare event that the throttle valve driving motor goes awry.

The slotted arm linkage offers a fail safe for the rider.

 

[ionbeam]

It is a chip controlled throttle....The twist grip cables operate the accelerator position sensor, a rheostat similar to the throttle position sensor...The slotted arm linkage offers a fail safe for the rider.

The proof of this can be confirmed by using that 'deficient' cruise control you '13 guys got screwed with. Sorry you good ol' boys in Fla, you can't do this. Set the cruise at any speed and head for a hill. As you go up the hill, you have to ask yourself -- Did the throttle tube turn as the engine applied power to maintain speed? Yes, the throttle tube turned = direct cable connection to the throttle plates. No, the throttle tube did not turn = true fly by wire. Done.

 

[Constant Mesh]

You probably won't get much of a visual indication from the throttle grip when in cruise simply because the throttle is barely cracked open when cruising at reasonable speeds.

I have an Audovox on my FJR and the throttle grip moves in tiny increments due to the minimal throttle needed for cruising.

 

[ionbeam]

You probably won't get much of a visual indication from the throttle grip...I have an Audovox on my FJR and the throttle grip moves in tiny increments due to the minimal throttle needed for cruising.

Hmm, may be a personal thing. I also have an AVCC and I find the throttle movement to be quite noticeable by feel. When possible (outside traffic or other areas where throttle access is imperative) I will rest my hand off the throttle. The K1200 that I rode last fall was a true fly-by-wire and it was a blessing to have speed control independent of throttle tube movement.

 

[tyronewildman]

It is a chip controlled throttle.
Here's a discussion of the system when it was implemented on the R6.

https://www.mcnews.com.au/NewBikeCatalogue/2006/yamaha/yzf-r6/throttle.htm

https://www.yamaha-motor.eu/designcafe/en/about-design/technology/index.aspx?segment=About%20Design%20-%20Technology&view=article&id=442635

The twist grip cables operate the accelerator position sensor, a rheostat similar to the throttle position sensor.

There is a slotted arm linkage between the cable rotary cam and the throttle valve shaft. The cable rotary cam can't open the throttle valves but it can close the valves when the grip is released and returns to the resting position. The slotted linkage ensures that the rider can always close the throttle valves in the rare event that the throttle valve driving motor goes awry.

The slotted arm linkage offers a fail safe for the rider.

Thanks ionbeam for this explanation and for these links. It takes a few video views to see how it can work. I can’t believe that I was this far behind on how the YCC-T works. Having a failsafe is good and I wonder if the failsafe has ever had to be used because of stuck stepper motor or gear system or CPUs. Yep, my 1500 Wing’s twist grip turned with its vacuum operated cruse. I’ve tried the cruse on the ’13 FJR and can’t feel the twist grip move. In cruse, it takes more roll on, from throttle rest, to advance speed to catch up with cruse setting & that tells me that the twist grip doesn’t roll with the cruse. I too have an Audiovox cruse for my ’04 FJR but it has been setting, new in the box, since ’04. I’ll probably sell it when I sell my ’04 FJR. Later,,,De

 

[deanw]

[since someone else already covered the relevant bits, I'll just go off on a tangent...]

For real fun, Koenigsegg (yeah, the Hypercar people) are working on a system to replace cams with air-activated solenoids that are computer controlled. Huge increases in power and economy, reduced weight and complexity, and actual 100% variable "cam" profiles.

Article: https://www.digitaltrends.com/cars/koenigseggs-valve-free-system-plays-with-compressed-air-engine-technology-to-improve-power-and-efficiency/

Video: https://www.youtube.com/embed/Bch5B23_pu0

 

[Old Guy]

Tom, I took delivery on my new FJR yesterday and while waiting for a friend today I remembered your post. So I sat there with the engine idling and released the clutch to the friction point several times, and every time the rpm increased by a couple of hundred. Interesting.

An no, I'm not some klown who didn't know the bike would idle away. Virtually all my 24 or so bikes over the last 48 years have been capable of idling away, but this is the first that actually applied its own throttle

Now to find out why it can't turn off its own signal lights

 

[Wolf_in_Cheapclothing]

If you klowns haven't noticed.....on any fjr you can have smooth take offs with out any throttle input. Just don't act like you're running a quarter mile. I have always watched other riders(albeit, in disgust) rev up their motors before letting the clutch out to get moving when it really isn't necessary.

AE owners disagree.