Ducati GT 1000, Buell XB12x Ulysses, Triumph Bonneville

[Particle Man]

Originally Posted by marko138

The XB's WILL walk across smooth pavement at idle. Once moving there is very little rattle involved.

now that I think about the engine design I s'pose that makes sense... now about the "lack of power" thing...

[CasterTroy]

Originally Posted by marko138

The XB's WILL walk across smooth pavement at idle. Once moving there is very little rattle involved.

I've never had issues with the XB's walking I personally believe because this bike was so TALL and the COG was over a foot higher made it more "paint shaker" than a regular XB

I LOVE a daggone XB and WILL OWN ONE

[Homeslice]

What about their engine design is so unusual? I thought it was just an ordinary twin.

[Tmall]

Originally Posted by Homeslice

What about their engine design is so unusual? I thought it was just an ordinary twin.

The angle of the V. That and both sparkplugs fire at the same time. And it's a single throw crank.

Bounces around at idle because of the motor mounts. Once you get moving, everything is smooth..

[Particle Man]

Originally Posted by Tmall

The angle of the V. That and both sparkplugs fire at the same time. And it's a single throw crank.

Bounces around at idle because of the motor mounts. Once you get moving, everything is smooth..

and it's a crapload of hardware moving all around at once given the size of the engine

[Homeslice]

Originally Posted by Tmall

The angle of the V. That and both sparkplugs fire at the same time. And it's a single throw crank.
..

What is the advantage of doing it that way? Don't most twins fire in opposing order?

[No Worries]

Originally Posted by Tmall

The angle of the V. That and both sparkplugs fire at the same time. And it's a single throw crank...

Dyna, maker of aftermarket ignitions, makes a single-fire ignition for Harley's, that helps with vibration at idle. It got a very good review in Motorcycle Consumer News some years ago. Here's an online review: http://www.harley-performance.com/si...-ignition.html.

My old Suzuki came with points/condenser ignition. Twenty-nine years ago, I installed a Dyna electronic ignition, Dyna coils, and solid-copper sparkplug wires. That damned thing starts instantly, every time.

[Tmall]

Originally Posted by No Worries

Dyna, maker of aftermarket ignitions, makes a single-fire ignition for Harley's, that helps with vibration at idle. It got a very good review in Motorcycle Consumer News some years ago. Here's an online review: http://www.harley-performance.com/si...-ignition.html.

My old Suzuki came with points/condenser ignition. Twenty-nine years ago, I installed a Dyna electronic ignition, Dyna coils, and solid-copper sparkplug wires. That damned thing starts instantly, every time.

Thanks for that. It's something worth looking into!

[goof2]

Originally Posted by Homeslice

What about their engine design is so unusual? I thought it was just an ordinary twin.

If I remember correctly the engine Buell used was a 45 degree twin which supposedly doesn't inherently cancel out vibrations like a 90 degree twin (Duc, TL, SV) does.

[Homeslice]

Well I had an Aprilia with a 60 degree twin, what about that?