Thanks for the confirmation.  It is only about 20deg this morning so my would be frozen fingers thank you.

A couple of items to note.  The 44 tooth rear is very hard to find but Parts unlimited does carry the JTR816-44 for $40.95.  

Now for the front.  Watch the tips of the teeth as you get bigger.  I have a 17th laying on top of a savage front pulley and the OD's are getting close.  You also need to check how much the chain plates will stick out past the sprocket teeth.  I know there is not alot of clearance with the savage cases so check carefully.  I would size the front sprocket first and then size the back.  If you end up in a total jam let me know and I can slip the 530 chain off the gs550 and slip my 17 and chain on the savage as I have the front pulley off the bike right now.

Lastly,  keep in mind the GSXR's were all 532 chains depending on the year.  If you grab a GSXR front sprocket make sure you get one for a 530 conversion (as Tbalam pointed to in his link).  This sprocket is common as most people went to the 530 as soon as they had to replace parts.  I did on my fighter.

Another thought,  if you want I can measure the OD of the 17 tooth I have and then wrap the chain around it and get the od of the side plates of the chain.  From there we can calculate what any other size would be as it is a straight ratio when dealing with sprockets.

Let me know and I can run the measurements if you want and compare to my stock savage pulley.

Savage_Greg wrote on 12/31/69 at 16:00:02:

Greg, you were doing the same as me and following mis information about needing them from a spoked wheel. Go back to JT and type in search for GS550 E T, but when it comes up, go to GS550 cast wheel for 1980 and you will be in the right place.   Hutch

I just went through the hassle of ordering my sprockets. When I called JT they told me to call PARTS Unlimited. When I called Parts Unlimited they told me they only sell to dealers. Parts Unlimited found their closest supplier to me, which happened to be the Honda shop in my home town. After making sure the sprockets were for a 1980 GS550 ET with cast wheel, the total with tax came to $58.26 and they will be in on wednesday 2-28-07. Now all I have to do is order the GS550 front sprocket spacer from the suzuki shop and get a long 530 chain and I'm in business. THANK YOU ALL for the concentrated effort. I hope I didn't ruffle any feathers in this process. I still plan on doing a rpm check at 80mph before swapping out to chain, to see if my ears are decieving me or if it IS maxed out at 80.THANK YOU AGAIN ALL!!!      Hutch

tbalam wrote on 12/31/69 at 16:00:02:



give me a couple of days and I should have this for all of you.  Man, if all this had been 3 months from now I would have a whole lot more data for everyone.  I just haven't launched into the project yet.........something about the furniture I promised to build my wife before the last project bike went  a year and a half longer than planned.

sorry I,m a bit behind everyone here, things to do.

here some pic's of the ls400,

Hutch the gt750 is the 3 cylinder 2 stroke water cooled
some call it a kettle others water buffalo. any way heres the pic's








the front spocket is 17t I dont think a bigger one will go in,
the spacer is 10mm deep & 40mm wide.

please note this is the original set up of the ls400, this chain has 136 links + split in it.

allan.

tbalam wrote on 12/31/69 at 16:00:02:


I went with a 17/43 for a 2.53:1 ratio which is a 14.5% reduction from the stock 2.96:1 I figure if it turns the bike into a dog on take off, I can always buy another sprocket of 44 or 45 for $40 and get what I want. The 44 would be about 12.5% reduction and the 45 about a 10% reduction. Now that allan has given me the specs for the spacer I will be calling the Suzuki dealer and ordering it, and a second horn that I want to mount on the other side of the bike at the neck.Thank you allan for the specs on the spacer!!!!   Hutch

Hutch wrote on 12/31/69 at 16:00:02:


once you get the Suzuki part number for the spacer post it for us please