New Cylinder - different markings?

1 reply to this topic
  • Wiz636

Posted November 13, 2007 - 11:36 PM


My new cylinder arrived today and it has a different marking on it than the original cylinder. On the back of the original cylinder it has "Y-2" cast into it, on the new I just got it has "Y-4" cast into it. Also, I noticed that the part number on the box is 2S2-11311-10 while the part I ordered is 2S2-11311-00-00. I ordered it from my dealer and it does say 'Yamaha genuine parts & accessories' and Yamaha Motor Co., Ltd. but it looks like some cheap Chinese imitation.

Other than that the cylinder looks identical as far as all bolt holes, water passages, etc. are concerned. The taper at the base of the the bore itself seems to be machined slightly differently however.

One other thing, the finish on the outside of the cylinder is dull or flat compared to the original which is somewhat shiny. The new one is actually kind of ugly...the color of it also uneven.


Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • grayracer513

Posted November 13, 2007 - 11:58 PM


The 2S2-11311-10-00 ( the last digits are often dropped on box labels if they are zeros) is an '07 cylinder, and will work just fine on yours. Some minor change to it probably, and now supersedes the original.

Related Content


Wilson the Blue Privateer by jetfuel

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  50 replies

Is it worth it? (Cam and High compression piston) by macgi77

Dirt Bike   Make / Model Specific   Honda   CRF 150/230 F/L
  • Hot  36 replies

Yamaha YZ450F 2017 by Chris.GVS

Yamaha YZ450F 2017
  • * * * * *
  • 1 review
  • Last review by Tommyk_55
  • On January 15, 2017

Megabomb Fitment by 288yz450

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 1 reply

Snake pit oct 30th by The Anvil

Dirt Bike   Dirt Bike Regional Discussion   California
  • Hot  293 replies

Join Our Community!

Even if you don't want to post, registered members get access to tools that make finding & following the good stuff easier.

If you enjoyed reading about "" here in the ThumperTalk archive, you'll LOVE our community. Come join ThumperTalk today!

The views and opinions expressed on this page are strictly those of the author, and have not been reviewed or approved by ThumperTalk.