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Need help to replace a GS 1150 EF transmission.

  • Thread starter Thread starter hordave
  • Start date Start date
H

hordave

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Hey all,

I am new to GS bikes and to this forum. I have worked on Yamaha XJ1100 transmissions (darn 2nd gear) and could replace the second gear without splitting the case.

I bought a GS 1150 and found that the threads that attach the Driveshaft to the chain sprocket were stripped. So I picked up another transmission and now it is time to get the work done before spring is here.

The big question is do I need to split the case to replace the driveshaft.

Does anyone have any hints on how to do this. I have googled my heart out and I can find generic sort of information but nothing on my GS 1150 specific.

Any help, guidance or links will be much appreciated.

Dave...
 
Pretty sure you can do it without pulling the cylinder, although I've never personally done so. Flip over the engine and pull off the lower crankcase half and side covers.
 
Last edited:
Can a professional re-thread the output shaft threads? Just trying to think of alternatives.
 
The sprocket nut won't even grab on. Never thought of rethreading it. But I already spent the cash on the tranny so I guess I am already in for a pound. It might be good to take a good look inside maybe redo the valve seats and stuff. My 2nd cylinder was low on compression so this would be my opportunity to fix that as well. But probably will regret it half way through. The hardest part is just getting off my butt and starting.

I did see its twin at the Motorcycle Supershow in Toronto on Saturday. It was in the Vintage Barn, same paint job and everything. I have a way to go to make mine look that good though.

So does anyone know of any good threads, videos, or info on takin this thing right apart?

Thanks for all input so far...
 
hordave said:
...

I bought a GS 1150 and found that the threads that attach the Driveshaft ...

The big question is do I need to split the case to replace the driveshaft.

...
Click to expand...
I am trying to picture the "driveshaft" on an 1150.

I thought they were all chain-driven.
 
A ghetto solution at best but could the sprocket be TIG'ed to the output shaft? Not a long term solution but it would get you 15k miles down the road before you would have to deal with the issue again.
 
Buy a Suzuki shop manual!!!!!!!! A SUZUKI shop manual, NOT a Clymer or Haynes!!! Drain the oil!!! Remover the valve cover. Pull the engine out of the bike. Pull the ignition cover, clutch cover & stator cover. Remove the clutch hub. Remove the 2 plates behind the clutch hub, that tie the case halves together, they have Phillips head, countersink screws. One plate is a "C" shape, with 3 screws, the other plate has 4 screws, be careful with the gasket behind this plate. Pull the starter, there are 2 case bolts under there. Pull the "Z" shaped plate in front of the countershaft that has 2 bolts in it, tying the case halves together. Pull all the upper case bolts. Flip the engine over upside down. Pull the oil pan. Pull all the lower case bolts & nut. Split the cases. If you follow the manual, this is easy & only one day start to finish taking your time.
Ray.
 
Okay so I got a shop manual and rapidray is right is does lay it all out for you. So I hope to get at this next week sometime. I also plan to powder coat my engine while I am at it, if it will fit into my oven. I don't want to take any short cuts here as they will probably just cause me pain later in life.

Thanks for all the help from all you folks.

Dave...
 
hordave said:
Okay so I got a shop manual and rapidray is right is does lay it all out for you. So I hope to get at this next week sometime. I also plan to powder coat my engine while I am at it, if it will fit into my oven. I don't want to take any short cuts here as they will probably just cause me pain later in life.

Thanks for all the help from all you folks.

Dave...
Click to expand...

Thanks for paying attention. It is not as common as you might supose.
 
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