Tore Apart the 1000S Engine Tonight...

[Nessism]

thats a lot of carbon /oil buildup for only 6k

I agree but my 850 only has 4000 miles (and I know that one is right) and the intake valves have deposit build up too so I think its normal. The deposits are fairly soft and fluffy, not that super hard and caked on build up that valves get after a lot of miles. The speedo could be wrong I suppose but it doesn't look tampered with and 1000S speedos are rare so it's unlikely anyone messed with it.

[Big T]

Ed,

I can pull my spare motor and ship it to you

You can just put all those parts in the box and send it back to me!

[cyclefvr2]

1000s is that the katana motor?
i want a kat bad! but there 2 expencive for a po boy like me,least right now, i really like the 83 750 kat the dash is sweet

[russr33]

1000s is that the katana motor?
i want a kat bad! but there 2 expencive for a po boy like me,least right now, i really like the 83 750 kat the dash is sweet

1979 and 1980 GS1000S were 8V motors. 1982 GS1000SZ Katana was the second generation 16V motor.

[Nessism]

Just figured out that these cams are identical to those from my first S engine... http://www.thegsresources.com/_forum...d.php?t=135571

Never did figure out who made them but I think they are fine for shim over bucket since the lift seems to be under the threashhold.

Regarding these parts, a number of people have shot me PM's with trade offers but I'm a little overwhelmed right now. I'm interested in doing a trade but please understand that I'm restoring this 1000S so I'd like to find the right parts for this bike plus untimately these parts should be worth more than stock parts so I'd like to gather a little cash in addition to a trade.

What I'm willing to trade for is:

- Large port CV carb type head. The head I already have is in good shape so I'll just reuse it unless anyone has a low mileage (20k miles or less) CV type head they can offer plus some cash. Sorry, I know this sounds selfish but I can't see any good reason to install a VM carb head or one that's in worse condition than this one.

- Stock bore cylinder w/pistons - cylinder should have the extra bolt on the front (the '78 1000 cylinders don't have this and I'm not sure about '79 either). Again, looking for something with less than 20k miles that's in good condition - no broken fins or anything.

Again, please forgive for this selfish attitude, but hope you guys understand. As an aside, how much do you guys think this cylinder and pistons are worth? They look to be in good condition with no evidence of blow by on the piston skirts.

[jwhelan65]

No grudges here Ed...Now which one of those machines are you going sell me?

[Nessism]

Russr33 and I have made a deal for the head and cams, they should make a nice addition to his own S. In return I get a low mileage stock head which is perfect for my needs.

Cleaned up the cylinder and pistons only to notice one of the cylinder sleeves has a deep score line running vertically. Need to double check the pistons now but didn't notice anything wrong when cleaning them up.

Can anyone help me put a value on this damged big bore kit? The pistons are killer expensive - APE sells them for $679 + sleeves + boring, but obviously having a bad sleeve is very bad for resale value.

[Nessism]

Photos of the head after some clean up... Intake ports have been fully ported to blend the larger valves. Next step is lap the valves and assemble with new seals, then ship it off to Russ.

[67fire]

Drats!
I would have happily sent you my original '79 GS1000S head.
I guess you never got the PM or the online response.

Eric

[Nessism]

Drats!
I would have happily sent you my original '79 GS1000S head.
I guess you never got the PM or the online response.

Eric

Thanks for the offer Eric, and to all those that made offers, but I don't want a small port head. This bike is going back to stock so that means CV carbs and stock almost everything. Another thing people keep offering me is cylinders without the extra bolt in the front. It might be lame to want that, but that's what came on the bike so that's what I want.

[kochic]

Hi Ed,
i have what you need, big port head + cylinder with the extra front bolt.
stamped 997cc.
I have bought a gs1000 head from chicago area and the shipping was 70$ to my door.
I can try to give you a shipping quote.
Just let me know,

Thanks,
Marc

[67fire]

Russr33 and I have made a deal for the head and cams, they should make a nice addition to his own S. In return I get a low mileage stock head which is perfect for my needs.

Cleaned up the cylinder and pistons only to notice one of the cylinder sleeves has a deep score line running vertically. Need to double check the pistons now but didn't notice anything wrong when cleaning them up.

Can anyone help me put a value on this damged big bore kit? The pistons are killer expensive - APE sells them for $679 + sleeves + boring, but obviously having a bad sleeve is very bad for resale value.

Too late!

Eric

[russr33]

Wooo-Hooooo! Ludicrous Speed, NOW!!!!!

Photos of the head after some clean up... Intake ports have been fully ported to blend the larger valves. Next step is lap the valves and assemble with new seals, then ship it off to Russ.

[jwhelan65]

I want one....

[Big Jay]

Geez, a 1176cc GS1000? Is that streetable or is it dragstrip/roadrace only? I'd assume you'd need aftermarket sleeves to make this work? And how common was it to go this big back in the day?

This was very common back before the 1100 came out. Did lots of them.

Jay