swap?

[torque87]

I've got an 82 gs650gl, however the motor is in rough shape, missing parts here and there. I have been searching for some parts bikes to canibalize but with few 650's to be found, my question is how big of a motor could I shove into the 650's frame? I am looking at only Suzuki GS shaft drives for possible donors, found a good deal on an 1100 but have been told that would not likely fit. Should I be able to fit up a bigger motor, given a little modification/fabrication?

[Big T]

No

The 650G is unique

[torque87]

how do you mean?

[Nessism]

how do you mean?

The 850 and 1000/1100 shaft drive bikes share a lot of common parts, including the frame. You can install an 1000/1100 engine into an 850 chassis fairly easily. Similarly, the chain drive 750 and 1000/1100 engines, particularly the 16V engines, interchange fairly easily as well since the motor mounts are very close or even identical in some cases. The 650G has no similar shared commonality with any other GS bike other than the 550 (the top end is similar). The chain drive 650 is actually a direct descendent of the 550, but that doesn't help you any.

[torque87]

would there be any feasible way to shanghai an 850/1100 motor into a 650 frame with some modification/fabrication? I'm kind of planning this as a long term project, including some custom work. I just don't have a 850/1100 motor handy to get a good look at/get measurments from. OR in the opinion of those wiser than myself, should I try to finish out the 650 correctly and try to find another, chain driven model to annihilate with my crazy project ideas.

[DanTheMan]

would there be any feasible way to shanghai an 850/1100 motor into a 650 frame with some modification/fabrication? I'm kind of planning this as a long term project, including some custom work. I just don't have a 850/1100 motor handy to get a good look at/get measurments from. OR in the opinion of those wiser than myself, should I try to finish out the 650 correctly and try to find another, chain driven model to annihilate with my crazy project ideas.

Hey, the part of your quote that is in blue is the best answer.....

[Nessism]

Anything can be done but the question is why? The forks are more spindly on the 650, and the drive shaft and rear end would have to be converted during the engine swap which adds further complication. Plus, GS850's are cheap as dirt these days. Best to find yourself a new project bike.

[torque87]

good advice Now the hunt for 650 carbs begins anew!

[tom203]

good advice Now the hunt for 650 carbs begins anew!

Depending on how much stuff is missing, it might be easier to find another bike and part out what's left of the 650- in my area, 300 bucks buys you lots of non runners waiting for revival.

[torque87]

round here (middle of nowhere, ks) 650's are for some reason, elusive. Plenty of 850/1100's and a few 550's around. I may have lined up some carbs, but I find myself needing a fuel tank. Would I be able to fit a fuel tank from just about any GS onto my frame?

[FreshStart]

Not without a welder

[DanTheMan]

round here (middle of nowhere, ks) 650's are for some reason, elusive. Plenty of 850/1100's and a few 550's around. I may have lined up some carbs, but I find myself needing a fuel tank. Would I be able to fit a fuel tank from just about any GS onto my frame?

Ask tkent what he has in his backyard full of L bits and pieces. He's just over in CO on the eastern slope foothills.