SuzukiSavage.com /cgi-bin/YaBB.pl General Category >> Rubber Side Down! >> Oversized Cylinder /cgi-bin/YaBB.pl?num=1082342982 Message started by Rhinoman on 04/18/04 at 19:49:42

Title: Oversized Cylinder Post by Rhinoman on 04/18/04 at 19:49:42 Just picked up a 1987 LS650 and she needs some work..the previous owner ran her low on oil  :'( and messed up the cylinder wall, piston and head..So, I'm looking for the max bore size for this motor... not only to get it running but to give her some more zip 8) could I take .040 and still have enough left over?  I found a head at a local Savage yard for 250.00..do you think it's worth the price? Thanks in advance Rhino

Title: Re: Oversized Cylinder Post by Kropatchek on 04/19/04 at 04:46:19 ;D FYI there are two overseize piston available + 0.5 mm and 1.0 mm. Check www.ronayers.com for partnumbers etc. 250 for a complete head sounds good. Glad to be of help. regards and succes

Title: Re: Oversized Cylinder Post by Bugscraper on 06/21/04 at 10:19:01 I emailed Ron Ayers -- he said Suzuki doesn't make them; and he only carries OEM parts.

Title: Re: Oversized Cylinder Post by Kropatchek on 06/22/04 at 09:29:44 Sorry to hear that.  :-[ Not much more advice I can give you from the Netherlands.  >:( I am looking for a complete top-end e.g. Cylinder,piston, head and headcover and having a hard time finding a used set. Goodluck here the link to the ill. of Ron Ayers  http://www.ronayers.com/fiche/300_0039/crankshaft/crankshaft.cfm press on the partnumber and see what happens

Title: Re: Oversized Cylinder Post by Bugscraper on 06/23/04 at 12:37:32 Where did you get your info. on the oversized cylinders?

Title: Re: Oversized Cylinder Post by Kropatchek on 06/24/04 at 08:47:27 Click on the link to Ron Ayers and look at item 23-1 and 23-2. ::)

Title: Re: Oversized Cylinder Post by Greg_650 on 06/29/04 at 14:09:17 According to the Suzuki Service manual, there are also oversized rings.  I think that I read that you can get an overbore for the Savage that will make it just about 700 cc. There is also a place that will custom make a high compression pistion, but you better think about having a cam regrind too.

Title: Re: Oversized Cylinder Post by Bugscraper on 06/29/04 at 18:42:15 Hi, Greg, Steve W. here (from your Group).  I'm hoping to buy fairly late model, used, toward Fall, and am planning ahead.  We can talk more about some specifics later, OK?  Hope you're doing alright.

Title: Re: Oversized Cylinder Post by klx650sm2002 on 07/01/04 at 07:05:12 Listen to Greg. Clive W

Title: Re: Oversized Cylinder Post by Bugscraper on 07/01/04 at 11:39:58 Hi, Clive! Yeah, I know Greg knows what he's talking about -- his input is missed on Be_Savage, right?!

Title: Re: Oversized Cylinder Post by Greg_650 on 07/02/04 at 12:37:49 Aw, you guys are making me blush  :-[  Thanks. Glad to find some familiar names here, too.

Title: Re: Oversized Cylinder Post by woodworker on 02/27/05 at 08:40:58 Here is a link to the Wiseco piston kit I've installedhttp://www.bikebandit.com/partsbandit/product~pf_id~2788749~dept_id~943503.asp

Title: Re: Oversized Cylinder Post by Mr 650 on 02/27/05 at 09:34:12 woodworker wrote: Here is a link to the Wiseco piston kit I've installedhttp://www.bikebandit.com/partsbandit/product~pf_id~2788749~dept_id~943503.asp Thanks Woody congrats on the rebuild! The bike bandit photo incorrectly shows an old 2-valve piston! That's why the HD boys needed to add another jug! ;D I was interested in the fact that you ran through the clutch. Was this w/ new clutch springs and discs installed w/ the rebuild? Also, I noticed while surfing for parts that the 650 called for the same clutch spring as my '83 750 and several others. I suspect that Suzuki 650 may share more components among other models, if that nice Barnett kit fails to contain your new found torque. You know, I looked for a piston kit last year. I think I saw this one, on Bike Bandit, but I don't recall seeing it in the Wiseco book. So I went back and it was listed w/ the dirt bike stuff under the DR 650 (like we got knobby tires  ::)) It appears to be an 8.5:1 kit  in the catalog, page 7 - http://www.wiseco.com/PDFcatalogs/ps04-suzuki.pdf I would like to bump the compression up a point. Did Wiseco mention anything about the ratio in your kit?

Title: Re: Oversized Cylinder Post by slavy on 02/27/05 at 11:15:34 I am looking at the same things. I just picked up a Savage with no title, so the first thing I want to do is to get a bonded  title, but after that I want to go with an oversized high compression piston. I remember there was a discussion about the increase of the displacement with the biggest available piston and about the high compression piston. I know somebody installed something like this, but it is hard to remember who was that. May be he will be good to share this info.

Title: Re: Oversized Cylinder Post by woodworker on 02/27/05 at 11:23:42 Mr 650 wrote: Thanks Woody congrats on the rebuild! The bike bandit photo incorrectly shows an old 2-valve piston! That's why the HD boys needed to add another jug! ;D I was interested in the fact that you ran through the clutch. Was this w/ new clutch springs and discs installed w/ the rebuild? Also, I noticed while surfing for parts that the 650 called for the same clutch spring as my '83 750 and several others. I suspect that Suzuki 650 may share more components among other models, if that nice Barnett kit fails to contain your new found torque. You know, I looked for a piston kit last year. I think I saw this one, on Bike Bandit, but I don't recall seeing it in the Wiseco book. So I went back and it was listed w/ the dirt bike stuff under the DR 650 (like we got knobby tires  ::)) It appears to be an 8.5:1 kit  in the catalog, page 7 - http://www.wiseco.com/PDFcatalogs/ps04-suzuki.pdf I would like to bump the compression up a point. Did Wiseco mention anything about the ratio in your kit? Did some calculations myself, with the additional volume obtained from the cavities in the top of the Wiseco piston and the oversize cylinder volume, the compression ratio worked out to essentially the same i.e. 8.5:1, also checked with Wiseco tech at the time and they confirmed this, thus no need to change camshaft timing I have pics of the actual piston if you wish to see them. I'm not sure how to publish them in this forum.

Title: Re: Oversized Cylinder Post by woodworker on 02/27/05 at 11:32:54 Mr 650 wrote: Thanks Woody congrats on the rebuild! The bike bandit photo incorrectly shows an old 2-valve piston! That's why the HD boys needed to add another jug! ;D I was interested in the fact that you ran through the clutch. Was this w/ new clutch springs and discs installed w/ the rebuild? Also, I noticed while surfing for parts that the 650 called for the same clutch spring as my '83 750 and several others. I suspect that Suzuki 650 may share more components among other models, if that nice Barnett kit fails to contain your new found torque. You know, I looked for a piston kit last year. I think I saw this one, on Bike Bandit, but I don't recall seeing it in the Wiseco book. So I went back and it was listed w/ the dirt bike stuff under the DR 650 (like we got knobby tires  ::)) It appears to be an 8.5:1 kit  in the catalog, page 7 - http://www.wiseco.com/PDFcatalogs/ps04-suzuki.pdf I would like to bump the compression up a point. Did Wiseco mention anything about the ratio in your kit? Did some calculations myself, with the additional volume obtained from the cavities in the top of the Wiseco piston and the oversize cylinder volume, the compression ratio worked out to essentially the same i.e. 8.5:1, also checked with Wiseco tech at the time and they confirmed this, thus no need to change camshaft timing I have pics of the actual piston if you wish to see them. I'm not sure how to publish them in this forum. Sorry I forgot to answer your question re: the clutch - During the rebuild I checked all clutch components i.e. friction disc thicknesses, spring free length, drive discs, and they were all within Suzuki's tolerances, I got the slippage using the original clutch. This only happened the one time I tried it, there is a possibility that I had not let the machine warm up enough to operating temperature when I gave her a shot. Will definitely get some answers and solutions when this snow dissappears!

Title: Re: Oversized Cylinder Post by Mr 650 on 02/27/05 at 11:46:13 woodworker wrote: Did some calculations myself, with the additional volume obtained from the cavities in the top of the Wiseco piston and the oversize cylinder volume, the compression ratio worked out to essentially the same i.e. 8.5:1, also checked with Wiseco tech at the time and they confirmed this, thus no need to change camshaft timing I have pics of the actual piston if you wish to see them. I'm not sure how to publish them in this forum. Sorry I forgot to answer your question re: the clutch - During the rebuild I checked all clutch components i.e. friction disc thicknesses, spring free length, drive discs, and they were all within Suzuki's tolerances, I got the slippage using the original clutch. This only happened the one time I tried it, there is a possibility that I had not let the machine warm up enough to operating temperature when I gave her a shot. Will definitely get some answers and solutions when this snow dissappears! Thanks, You didn't mention switching to synthetic oil. I suspect the '86 springs were a little tired by now. The new Barnett parts should do the trick. Also for photos when posting/replying, next to "Add YABBC tags:" 2nd row, 4th button, type in the link to your photo, highlight it, then just click the "insert image" button.   Your pic will appear.

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