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-   -   New Yamaha Triples. (http://www.advrider.com/forums/showthread.php?t=830992)

Paulvt1 10-02-2012 08:25 AM

New Yamaha Triples.
 
http://hellforleathermagazine.com/20...n-a-road-bike/

I'm too young to remember Yamaha's last generation of triples - but this interests me. Concept looks to be a TDM type bike. Kind of makes sense.

KungPaoDog 10-02-2012 09:49 AM

I've liked the character of the Triumph triples I've had a chance to ride. I'm glad to see that someone else is getting in on it.

The Hell For Leather headline says "Cross-plane Crank." How the heck do you make a cross plane triple? Really funny balance shafts?

DannyZRC 10-02-2012 10:42 AM

All of the 3 pointed star imagery in Yamaha's display seems to indicate the standard 120* crank, surely with the standard 240* firing intervals.

I think Yamaha is just trying to build themselves some branding with this crossplane stuff, like when they promote the 270* crank in the tenere as crossplane, where they didn't use the same marketing strategy for the TDM/TRX.

Of course, the point of the crossplane 4 cylinder in the R1 and M1 is to eliminate crank speed fluctuations due to inertial torque, and this is true for the 120* triple and the 270* parallel twin, so can't fault them overly much for trying to work it into their branding.

I'm hoping it's a new R6, :deal

Grainbelt 10-02-2012 10:51 AM

If it is 800cc or less and on a standard or ST bike, I'm in.

If they just plop it into yet another ADV bike, I'm out.

Mr. Canoehead 10-02-2012 10:55 AM

Quote:

Originally Posted by Paulvt1 (Post 19726762)
I'm too young to remember Yamaha's last generation of triples - but this interests me.

I remember them. A friend had an 850 - it was the first street bike I ever drove. They were pretty dull compared to the Honda and Suzuki fours of the time. Yamaha eventually dropped them for the Seca 4 cylinder series. Hopefully, they'll be more competitive this time around.

I recently drove a Tiger 800 for 1200 miles. I could love a triple! So smooth, so torquey!

Jim K. 10-02-2012 07:07 PM

Quote:

Originally Posted by DannyZRC (Post 19727872)
All of the 3 pointed star imagery in Yamaha's display seems to indicate the standard 120* crank, surely with the standard 240* firing intervals.

I'm hoping it's a new R6, :deal

+1..... It's hard to imagine why a triple wouldn't have a 120 firing order. I'm also in for a new triple R6. Should be able to make it a little lighter as a triple, no?

DannyZRC 10-02-2012 07:30 PM

Quote:

Originally Posted by Jim K. (Post 19731864)
+1..... It's hard to imagine why a triple wouldn't have a 120 firing order. I'm also in for a new triple R6. Should be able to make it a little lighter as a triple, no?

Laverda did a flat plane triple, iirc

not saying it was good, just that they did it.

CajunRider 10-02-2012 08:28 PM

Yamaha is just Jones-ing for a bit of Triumph Pie. :rofl

I do love a triple... so I'll be watching.

Tripletreat 10-02-2012 10:40 PM

triple crank designs
 
The initial 120 degree triple that Laverda developed shook like a paint mixer. So much so that it cracked its frame. The company then isolated the engine in a new frame with rubber mounting points and the rest is history. They sold such a bike as RGS and RGA models until the Breganze firm folded. Even with that revised frame, the bike can be really buzzy on the road if the engine isn't in a sharp state of tune.
Frankly, I prefer the old Laverda triples with the 180 degree cranks. They are less likely to put my hands to sleep due to vibration.

Navin 10-02-2012 11:08 PM

Please be a 450 sportbike. :eek1

Paulvt1 10-03-2012 08:02 AM

It sounds like there will be a lot of new stuff based around the triple engine concept.

Mr. Canoehead 10-03-2012 08:32 AM

Quote:

Originally Posted by Jim K. (Post 19731864)
+1..... It's hard to imagine why a triple wouldn't have a 120 firing order. I'm also in for a new triple R6. Should be able to make it a little lighter as a triple, no?

You would have a 120 crank in a two stroke triple. A four stroke would be 720/3 = 240 for even firing.

DannyZRC 10-03-2012 09:14 AM

Quote:

Originally Posted by Mr. Canoehead (Post 19735437)
You would have a 120 crank in a two stroke triple. A four stroke would be 720/3 = 240 for even firing.

same crank, different timing.

XS500RUS 10-03-2012 02:13 PM

Quote:

Originally Posted by Paulvt1 (Post 19726762)
http://hellforleathermagazine.com/20...n-a-road-bike/

I'm too young to remember Yamaha's last generation of triples - but this interests me. Concept looks to be a TDM type bike. Kind of makes sense.

Test rode a '78 XS750 once, man those are sweet bikes! I loved the triple's power delivery, it really does straddle the middle of a parallel twin's punchy character and an inline 4's smoothness.

Andylaser 10-03-2012 04:01 PM

The XS750 is a lovely sounding bike, has an amazing growl. :D

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