SuzukiSavage.com - boring out the 650

KarinB. YaBB Newbies Offline SuzukiSavage.com Rocks! Posts: 13	boring out the 650 05/13/09 at 16:31:34 I would like to find out if anyone on here has ever bored out a 650 and if so how far can you go. thanks karin
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verslagen1 YaBB Moderator ModSquad Offline Where there's a will, I want to be in it. Posts: 28890 L.A. California Gender:	Re: boring out the 650 Reply #1 - 05/13/09 at 16:54:07 You'll get a lot more with a carb, a cam and an exhaust with a lot less effort.
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aliassmith

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Re: boring out the 650
Reply #2 - 05/14/09 at 10:57:01

[quote author=40434F4D404143434F442C0 link=1242257494/0#0 date=1242257494]I would like to find out if anyone on here has ever bored out a 650 and if so how far can you go. thanks karin
Wiseco pistons make three sizes larger than stock.

Stock s-40 uses a 94mm piston. Wiseco makes 95mm, 96mm, and a 97mm piston.

96mm piston with stock 94 mm stroke gives 680cc.
The piston with shipping costs about 230dollars. The price of cylinder boring is just over a hundred dollars at a dependable shop.
Then there is the cost of gaskets and labor unless you do your own.

Google Wiseco pistons for details

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mikestrikes Full Member Offline SuzukiSavage.com Rocks! Posts: 236 Decatur, AL Gender:	Re: boring out the 650 Reply #3 - 05/14/09 at 12:51:29 Quote: Wiseco pistons make three sizes larger than stock. Google Wiseco pistons for details Better check that again, or better yet call/e-mail them as I did. Thats a No Go on any piston for the LS650 street bike.
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Yonuh Adisi FSO

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Re: boring out the 650
Reply #4 - 05/14/09 at 13:57:17

mikestrikes wrote on 05/14/09 at 12:51:29:

Quote:

Wiseco pistons make three sizes larger than stock.

Google Wiseco pistons for details

Better check that again, or better yet call/e-mail them as I did. Thats a No Go on any piston for the LS650 street bike.

It's especially not a good sign when they do list the LS650 as a dirt bike.

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Check out Flight of Destiny http://www.amazon.com/dp/B00H9130XC

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T Mack 1 - FSO Serious Thumper Alliance Member Offline sold 2001 LS650 for a 1986 XLH1100 Posts: 2919 Emmaus,Pa Gender:	Re: boring out the 650 Reply #5 - 05/14/09 at 14:02:10 Factory OS kits There use to be two 0.5 mm for a 660 cc and a 1.0 mm for 670 cc BUT..... I looked at the online microfische and only saw the 0.5 mm
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Mr. Hyde

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Re: boring out the 650
Reply #6 - 05/14/09 at 15:09:37

This ad was on ebay several months ago.

KIT PART #4597MO9600 . 1MM OVERSIZE. 96MM. KIT INCLUDES PISTON , RINGS, PISTON PIN AND PISTON CLIPS. FITS A SUZUKI DR/SP/LS 600-650 MODEL . MIGHT FIT NEWER OR OLDER MODELS. RETAIL IS APPROX $ 163.00. IF YOU HAVE ONE OF THESE BIKES GRAB UP THIS PISTON WHILE YOU CAN AS VINTAGE PARTS ARE DRYING UP QUICK.

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Phelonius Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 1897	Re: boring out the 650 Reply #7 - 05/14/09 at 16:33:17 mikestrikes wrote on 05/14/09 at 12:51:29: Quote: Wiseco pistons make three sizes larger than stock. Google Wiseco pistons for details Better check that again, or better yet call/e-mail them as I did. Thats a No Go on any piston for the LS650 street bike. Gee whiz! Then what did I just put in my S-40? Phelonius
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mikestrikes

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Re: boring out the 650
Reply #8 - 05/14/09 at 19:17:30

Quote:

Gee whiz! Then what did I just put in my S-40?
Phelonius

Well they list it under the dirtbikes, and the person who e-mailed me back said no they dont carry that.
May be wrong but I sure cant find it. Got any pics ?
I'd like to get my hands on a Forged piston with a slightly raised top and valve cutouts....

We can get some custom pistons if we can get 4 or more people wanting them from ROSS Pistons, they only make custom slugs in 4's...

Get them in the same dia as that of Chevy 305 V8's and we can use the Gapless Ring sets !!!

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LANCER Serious Thumper Alliance Member Offline Savage Beast Performance Parts Posts: 10676 Oklahoma Gender:	Re: boring out the 650 Reply #9 - 05/15/09 at 08:21:57 Yep, Wiseco does have them but as stated you do have to look them up under the '90-'95 DR650; and the sizes are 95, 96 and 97mm. Someone on ebay also has a few of them in assorted sizes.
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Phelonius

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Re: boring out the 650
Reply #10 - 05/15/09 at 09:22:10

mikestrikes wrote on 05/14/09 at 19:17:30:

Quote:

Gee whiz! Then what did I just put in my S-40?
Phelonius

Well they list it under the dirtbikes, and the person who e-mailed me back said no they dont carry that.
May be wrong but I sure cant find it. Got any pics ?
I'd like to get my hands on a Forged piston with a slightly raised top and valve cutouts....

We can get some custom pistons if we can get 4 or more people wanting them from ROSS Pistons, they only make custom slugs in 4's...

Get them in the same dia as that of Chevy 305 V8's and we can use the Gapless Ring sets !!!

When you look under dirt bikes in the Wisco site, You find the pistons fo the 96 and earlier DR 650s. Then if you look closely, you will see that they are also for the LS 650.
I called on the phone and it was verified. I also asked about how thin the cylinder liner could be bored. They said even down in the skirt area,(the part that extends down in to the block), do not have less than .080" thickness.
My skirt area measured 101mm on the outside. If I bored for a 96mm piston that would leave 5mm difference. Divide that by two and get 2and 1/2 mm thickness. That is as thin as I wanted to go so I bought the 96mm piston and merely wished for the 97.
Be advised. the piston and wrist pin together in the stock engine weighs 33 grams more than the Wisco piston and wrist pin.
You can either put up with a slight imbalance and the vibration it induces, or add weight to the wrist pin to match the original weight.
I did the latter.

BTW the Wisco piston has a raised crown that in addityion will give an increase in compression. Use the better grade of gas with this piston.

Phelonius

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Phelonius

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Phelonius Serious Thumper Offline SuzukiSavage.com Rocks! Posts: 1897	Re: boring out the 650 Reply #11 - 05/17/09 at 12:08:52 Okay I found the box it came in. Wiseco piston 4597M09600 Suzuki DR/SP/LS600-650 Mine has been hopping up and down inside my engine for more than 700 miles now so if they don't make one, I have a problem. Phelonius
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LANCER

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Re: boring out the 650
Reply #12 - 05/17/09 at 16:04:38

Phelonius wrote on 05/17/09 at 12:08:52:

Okay I found the box it came in.

Wiseco piston 4597M09600
Suzuki DR/SP/LS600-650

Mine has been hopping up and down inside my engine for more than 700 miles now so if they don't make one, I have a problem.

Phelonius

does it feel good jumping up and down in there ? does it give more base with the bigger drum ? Cheesy

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Phelonius

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Re: boring out the 650
Reply #13 - 05/18/09 at 10:36:07

LANCER wrote on 05/17/09 at 16:04:38:

Phelonius wrote on 05/17/09 at 12:08:52:

Okay I found the box it came in.

Wiseco piston 4597M09600
Suzuki DR/SP/LS600-650

Mine has been hopping up and down inside my engine for more than 700 miles now so if they don't make one, I have a problem.

Phelonius

does it feel good jumping up and down in there ? does it give more base with the bigger drum ? Cheesy

Base stayed the same as did the exhaust. Still stock pipe.
It is noticeably quicker through the gears from a stop.
Don't know if it added any horses or the ones it got grew a bit bigger.
Soon I will try it on a known uphill grade to evaluate.

Phelonius

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Phelonius

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LANCER Serious Thumper Alliance Member Offline Savage Beast Performance Parts Posts: 10676 Oklahoma Gender:	Re: boring out the 650 Reply #14 - 05/18/09 at 19:38:44 I've got a couple of spare cylinders sitting on the shelf waiting for something to do .................................................hmmmmmmmmmmmmmmm It would help if I had a lot more spare money though.... wouldn't it be fun to have a kit with a 97mm piston, bored cyl with silicone carbide treatment, and perf. cam/carb combo
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