There is a **650cc four stroke single unit ** that seems to have been around for ever.
It (or they) turned up/turn up in the early BWW F650, MZ Baghira, Kawasaki 650 trail, Aprilia Pegaso and, I think, a Bombadier. (Yup, even a snowmobile.) Someone told me that it is /was in a KTM. Mmm?
Depending what manufacturers ad-speak you believe it develops anything from 48 to 55 b.h.p. The only thing they seem to agree on is that it’s a five valve, five speed unit.
My last bike was a well prep’d Baghira SM with twin carbs. The seller told me it was a Rotax unit. A Woolwich scumbag stole that.
It was replaced, in a bit of desperation, by a new Aprilia Pegaso Trail. Much more civilized but not as much fun (pronounced “Oh my God!”, on a good day, or "Sh*****t, on a very good day.) as the MZ.
An Aprilia agent told me that the unit was made by Minarelli under licence from Bombadier. Yeah. Might be right, but might be bull ****.
Any of you guys out there know the true history of this motor?
Additional information, for anyone interested.
In standard kit, the injected Peg. has a big hole in the power band at 3.2k to 3.9k r.p.m. and a yawning chasm between 2nd and 3rd gears. Nice bells and whistles, but no real quality. But with the higher/comfort seat, an all day bike.)
The MZ, on twin compound carbs, had no hole but the same gearbox ****. It’s the far better quality bike but needs the raw edges smoothed out. Crap lights/instruments, uncomfortable seat, comical exhaust.
Starting all over, I’d buy the MZ and recon on spending money to smooth out the rough bits using the salvage and aftermarket suppliers. And a seat man. *
“Life is like a sewer. What you get out of it, is what other people put into it.” Tom Lehrer.