Custom motorcycle engine identification

I've been in a brief discussion over on rec.moto about
this custom motorcycle:
http://www.actualriders.ca/cP1010034.JPG

Specifically, I'm trying to identify the engine. At first, I
glanced at it and thought it was Ducati related. However,
the closer I looked, I can see that it's very unique.

My latest guess/conclusion is that it's simply(metaphor-
ically speaking) the rear cylinder of a large Harley V-
twin, configured as a single.

Yeah, I know, it's hard to believe, but I can't think of
anything else it could be. If so, why someone would
choose this modification is well beyond me, other than
to exhibit his certain talent for (re)fabrication.

Any alternative ideas here on the engine construction?


Gary

 

Well Gary, I know one thang, that little motorBike probably weighs about
250 lbs. It looks like it is about 58inches long, and 26 inches to the
top of the tank.

No doubt it is all ''home made'', Engine and all. Now, I dont mean it
aint a good job, by someone. I thinks it's cute.


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

(Gary Walker)


I've been in a brief discussion over on rec.moto about this custom
motorcycle:
http://www.actualriders.ca/cP1010034.JPG
Specifically, I'm trying to identify the engine. At first, I glanced at
it and thought it was Ducati related. However, the closer I looked, I
can see that it's very unique.
My latest guess/conclusion is that it's simply(metaphor- ically
speaking) the rear cylinder of a large Harley V- twin, configured as a
single.


Yeah, I know, it's hard to believe, but I can't think of anything else
it could be. If so, why someone would choose this modification is well
beyond me, other than to exhibit his certain talent for (re)fabrication.


Any alternative ideas here on the engine construction?
Gary

 

Maybe it's Buell Blast motor? Doesn't look like the one i have though.
But that is basically what a blast uses as an engine, half a harley motor.

 

Yeah, you're right the Buell here:
http://www.sportrider.com/bikes/2005/2005-buell-blast-1.jpg
does appear to have a similar configuration. However,
the major difference is that the custom has a frontal
intake, and rear exhaust. This Buell doesn't seem to
look that way.

Here's another Blast image that gives a somewhat bet-
ter detail.
http://img107.imageshack.us/img107/2892/blast5uu.jpg
The Blast also seems to be missing any pushrod tubes,
but they could just be beneath that cover.

If is wasn't for the intake/exhaust reversal, I'd say you're
right. I suppose one(with enough patience/ability) could
simply reverse the intake/exhaust. But, why?

Gary

 

: If is wasn't for the intake/exhaust reversal, I'd say you're
: right. I suppose one(with enough patience/ability) could
: simply reverse the intake/exhaust. But, why?


Take a rear head, put it on the front cylinder, and Bob's your uncle.

Some customs do just that to run separate intake systems on each
cylinder.

The removal of the rear cylinder was done to meet engine size
requirements for racing, I think.

 

I understand(I think), but it seems there are a lot better
ways to meet a requirement, with all the various engines
available today.