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Author [ES] [CA] [PL] [PT] [IT] [DE] [FR] [NL] [DK] [NO] [GR] [TR] Topic: VFR 1200 engine talk  (Read 4528 times)

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Offline ojo

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VFR 1200 engine talk
« on: November 21, 2011, 09:04:12 PM »
Crosstourer will have a VFR 1200 engine though with a different setup as from VFR Tourer.
Found some interesting facts and pictures out there:
http://www.motorcycle-usa.com/1762/Motorcycle-Photo-Gallery/2010-Honda-VFR1200F-First-Ride.aspx

Copied some of the engine tech talk in here:
"According to the Honda PR, the ‘high-strength Symmetrically Coupled Phase-shift crankshaft, utilizes a 28-degree crankpin offset in its 76-degree V-configuration. As a result the engine has ‘perfect primary balance’ and subsequently does not use a counter balancer. This adds to the reduced overall weight .....

Another critical development is the use of the Unicam valve train first seen on the CRF dirtbike line-up. A single cam actuates the pair of intake valves and a roller rocker arm actuates the exhaust valves....

This all new engine design is lighter and more compact than V4 power plants of old. Improved areas includes cylinder layout, which has the rear cylinders inboard of the crank and the front cylinders forward of the crank. This helps keep the engine compact front to rear - 2010 Honda VFR1200F First Ride .... "
Around the world and back ... driven Honda motorbikes all over Europe, Australia, NewZealand, Japan, Russia .....
my latest trip: http://www.austral.omania.ch/index.html

Offline Giovannino

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Re: VFR 1200 engine talk
« Reply #1 on: November 21, 2011, 09:55:07 PM »
stunning! :)
Giovannino,
Varadero Club Italia - Crosstourer Club Italia
http://www.facebook.com/giovanni.lupo
------------------------------
Honda Varadero 2001 - 172000 kms

Offline Freaky

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Re: VFR 1200 engine talk
« Reply #2 on: November 22, 2011, 01:29:09 AM »
 Woooh.....  Topic makes me dzzy  :087:

 :460:

Offline Murdock

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Re: VFR 1200 engine talk
« Reply #3 on: November 22, 2011, 07:39:07 AM »
 :460: :460: :460: :460: :460:

Offline ojo

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Re: VFR 1200 engine talk
« Reply #4 on: November 22, 2011, 08:12:59 PM »
*Originally Posted by ojo [+]
......
Another critical development is the use of the Unicam valve train first seen on the CRF dirtbike line-up. A single cam actuates the pair of intake valves and a roller rocker arm actuates the exhaust valves....

Found a layout of VFR 1200 Unicam valve train. Have a look  :018:
Around the world and back ... driven Honda motorbikes all over Europe, Australia, NewZealand, Japan, Russia .....
my latest trip: http://www.austral.omania.ch/index.html

Offline Giovannino

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Re: VFR 1200 engine talk
« Reply #5 on: November 22, 2011, 09:20:25 PM »
 :062: :062:
Giovannino,
Varadero Club Italia - Crosstourer Club Italia
http://www.facebook.com/giovanni.lupo
------------------------------
Honda Varadero 2001 - 172000 kms

Offline Freaky

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Re: VFR 1200 engine talk
« Reply #6 on: November 23, 2011, 06:09:58 AM »
Wow Ojo, you relly study this bike hard ya....  :062:

Offline Murdock

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Re: VFR 1200 engine talk
« Reply #7 on: November 23, 2011, 09:51:22 AM »
very  :062: