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Workshop => Engine and Bottom End => Topic started by: Dezsled on November 06, 2013, 02:35:45 AM

Title: Some cylinders from way back
Post by: Dezsled on November 06, 2013, 02:35:45 AM

I uncovered some old cylinders the other day

(http://i83.photobucket.com/albums/j300/Dezsled/945b6ed89a8d085d0b368bf972dcaeb7.jpg)

Etched in under front left cyl

(http://i83.photobucket.com/albums/j300/Dezsled/1b528009597fc1b82f12249e659c90a0.jpg)

Etched under front middle cyl

(http://i83.photobucket.com/albums/j300/Dezsled/8b0e77044cd1dd4b863503d90a3976cf.jpg)

Etched under front right cyl. It's a chrome bore 250cc

(http://i83.photobucket.com/albums/j300/Dezsled/ca856c277ce72f52a0613e8b22920a0b.jpg)

(http://i83.photobucket.com/albums/j300/Dezsled/2ea8c175a247e9bd762bef0d10ff5171.jpg)

(http://i83.photobucket.com/albums/j300/Dezsled/6e126a22fc1c4f784d26433c84a4f80a.jpg)

I'm not looking to sell anything, before anyone gets any ideas... Thanks

Title: Some cylinders from way back
Post by: rsss396 on November 06, 2013, 06:52:59 AM

show more pictures of the exhaust/transfer ports, that the cool stuff.

Title: Some cylinders from way back
Post by: Hawaiiysr on November 06, 2013, 02:08:36 PM

I'm putting you on the cool person horder list:) I see a LT cylinder too. Do the Suzuki jugs hang out on the dryer?

Title: Some cylinders from way back
Post by: Dezsled on November 09, 2013, 12:33:44 PM

I'll get more detail pics.

Thanks hawaiiysr ... Starting to get a grip of suzuki parts now!

Here's some heads

(http://i83.photobucket.com/albums/j300/Dezsled/8f00788f4ef26211f0e7bff012e64e36.jpg)

Title: Some cylinders from way back
Post by: udontknowme on November 11, 2013, 10:41:31 PM

i wonder why honda (or kawasaki or yamaha or suzuki) never really did much with the case reed design on the 250. honda did take a shot at it in '02 but threw in the towel '07. suzuki took a crack at it also for a very brief time. something even stranger is prior to hondas case reed attempt they were fiddling with tripple exh ports for a few years then immediatly went back to a bridge with the case reed.  never could make up their mind i guess

Title: Some cylinders from way back
Post by: Tbone07 on November 12, 2013, 12:31:44 AM

They went all in with the case reed design in '02 and could never get it right. Then they ditched the 2-stroke and went all in on the 450.

Maybe after some R&D they could have gotten that case reed design to work. We'll never know cuz o dem dang 4-strokes

Title: Some cylinders from way back
Post by: udontknowme on November 13, 2013, 12:42:09 AM

ya had a '04 but sold the engine before i really had a chance to examine it. rumor has it they were using converging squich on some years but i never checked so i cant confirm

Title: Some cylinders from way back
Post by: udontknowme on November 13, 2013, 09:14:11 PM

neat stuff from back in the day

(http://i1081.photobucket.com/albums/j357/doddledo/125d1_zps12079805.jpg) (http://s1081.photobucket.com/user/doddledo/media/125d1_zps12079805.jpg.html)

Title: Some cylinders from way back
Post by: Jerry Hall on November 14, 2013, 10:46:52 AM

I think it was around 1990 the Cr125 Hondas had  converging squish clearances ( Piston to head clearance was closer at the squish ID than at the squish at the OD).

Title: Some cylinders from way back
Post by: udontknowme on November 14, 2013, 07:47:15 PM

heard from a few poeple the final generation cr250 squish was converging also. when you think about it the last cr250 was complete oposite of all previous years. case reeds, electric PV, tps carb, stepped exh