classic motorcycle forum

Motorcycle Discussions => Identify these bikes! => Topic started by: green on August 10, 2009, 10:11:41 PM

Title: Identify this please, tricky
Post by: green on August 10, 2009, 10:11:41 PM

(http://image.baggersmag.com/f/9024454+w750+st0/0606_hrbp_05_z+lions_raceway+man_and_bike.jpg)
(http://image.baggersmag.com/f/9024430/0606_hrbp_04_z+lions_raceway+engine.jpg)

I cannot tell what this engine is from or what this bike is based on,
any ideas?
thanks cheers

Title: Re: Identify this please, tricky
Post by: RichP on August 11, 2009, 11:23:00 PM

Isn't it a McCulloch target drone engine ?

Maybe it's where Norton's got the idea of building their rotary drone engines into motorcycles ? :)

Title: Re: Identify this please, tricky
Post by: RichP on August 13, 2009, 11:05:32 PM

It just about rang a bell but I couldn't remember where I'd seen it before. I do recall reading up on target drones when Nortons were marketing the rotary engine for them.

In the end, I Googled 'Two stroke flat four' or somesuch

The engines seem to have been quite available in the US in the 1960s and were used in self build helicopter type aircraft.