future classic

J

J.A.W.

• Dec 18, 2012

• #21

Then how do all those Honda & Kawasaki 180`crankshaft vertical twins currently sitting in showrooms manage?
Same solution as the Hinkley Bonnevilles & S.G. 961...balance shafts...
Ok?....

 

R

Rohan

• Dec 18, 2012

• #22

http://en.wikipedia.org/wiki/File:Boxer ... mation.gif

 

J

J.A.W.

• Dec 18, 2012

• #23

Is that animation one of yours, Rohan?
Have you looked at it?
It is crook...crank throws are uneven...L.O.L...

 

R

Rohan

• Dec 19, 2012

• #24

Ever heard of an isometric view ?

We thought not....

 

J

J.A.W.

• Dec 19, 2012

• #25

Are you purblind? Look closer, since when do pistons in a twin have differential strokes....?

 

R

Rohan

• Dec 19, 2012

• #26

If you put $$ into this, maybe you could ask for it to be corrected.....

 

72Combat

• Dec 19, 2012

• #27

J.A.W. said:

Rohan, mind your tone, I refer you to J.D.s recent reminder ..
The horizontally opposed BMW twins fire the same as a Commando...but being 180`twins compared to 0` as the Commando is, they run a 180`crank...
I asked if anyone had seen one set-up to run a 360` crank, which would be a firing configuration equivalent to the 180` vertical twins.
OK?...

Click to expand...

The BMW motor fires the same as a Parallel Twin but as almost perfectly balanced apart from the rod offset 'rocking couple" its very smooth. although both plugs fire at the same time ( wasted spark) only one cylinder is producing power.
Other than the rocker cover touching down on some corners

I find it good as a track bike....so good in fact my daily ( 1983) hack is one as well...... .