GS1000 & GS1100

[Robu]

I was trying to find out what exactly are the difference between those models from 1981 ? Is it just a different engine or are there more changes that took place I can't find out a thing about the 81 GS1100
specs and performance .I know some have gone up to a 1100 after owning a 1000 thanks Robu

[SqDancerLynn1]

Be aware their are two GS1100 a G shaft drive that uses the two valve motor and a GS1100E which has the 4 valve motor

[gsBert]

i can't help you engine wise, as my 81 gs1100e now has a 1150 motor...

the '81 1100cc engine has 16 valves and i believe it makes 100 hp
the 1000 might be a 8 valve job and make less power.

the one thing i do know about the 81 gs1100e is this though:
it has the BEST STOCK MOTORCYCLE SEAT IVE EVER SAT ON.
it's like super all-day comfy, oh yeah... buy one, your butt will thank you.

[Jethro]

I find my 81 is pretty comfortable for the first 5 hours. After that it's pure hel!. The 83 is hands down the most comfortable saddle I have ever encountered. I can ride all day Sat and Sun and still be fairly comfortable.