Swaping 79 GS 750 motor with 79 gs1000 motor.

[Jamin George]

Can anyone confirm that this will be pretty much a plug and play so to speak?
PS this is a free-bee. if all goes well i will be selling the 750 motor (after I make sure it's running) cheap! just want to defer some costs.
Thanks

[tkent02]

Pretty much plug and play. You need to make a couple motor mounts, as the 1000 engine is shorter. Actually smaller in all three dimensions as well as 15 lbs. lighter in weight. Done a couple of them now, it's what Suzuki should have done in the first place.

Everything else just plugs in, carbs, wiring, exhuast and everything.

[Jamin George]

Can I use a gs1000 motor mount?

[tkent02]

No, the 1000 mounts don't fit the 750 frame. They are easy to cut, just flat steel plates. Only the front left one needs to be welded together or bent, it has to go around a corner. Where the 1000 engine's mount goes hits right in the center of the 750 frame's downtube, as the 750 frame is a little bit narrower there. One bike I welded a Y together, the second bike we bent it in an S curve.
Works fine either way.
There was something goofy about the right foot peg too, but that's an easy one to figure out.

[Jamin George]

Thank you very much! when I get closer to starting i may get back in touch...
JG