Gs1000 engine

[Guest]

I've got a rather technical question...I read a article about the 78 gs1000 and in it said the 1000 motor is basically a 750 bored out I think...is that true or is it its own motor? I'm new to large displacement bikes...the motor looks alil larger than a say Honda 750? (That I seen on the internet)

[Big T]

I've seen that in print before and the answer is no.

[Grimly]

I've got a rather technical question...I read a article about the 78 gs1000 and in it said the 1000 motor is basically a 750 bored out I think...is that true or is it its own motor? I'm new to large displacement bikes...the motor looks alil larger than a say Honda 750? (That I seen on the internet)

I wish it was true - because that would be an easy way to up the capacity of any 750 / 850 to 1000. Sadly, it's not the case.
The 550/650s are one series of case size.
The next one up is the 750/850.
One up again is the 1000/1100/1150 (not owning one of these, I'm not 100% sure on how much mix and match can be done with a 1000 to 1100 upward).

On the other hand, it's relatively easy to fit a complete lump into the smaller sized frame ie, 550/4 into 400/4, 650 into 550, 1000 / 1100 into 750 (chain), 1000 or 1100 into 850 (shaft).