2010 cylinder


10 replies to this topic
  • Mick17

Posted August 24, 2012 - 03:56 AM

#1

I'm doing a top end on my 2010 450. I replaced the valves, valve springs and guide seals. Then I noticed a line in the cylinder. I can't feel it with my fingernail. In the middle of the cylinder I can still see the cross hatch pattern running through the line. At the top and bottom of the cylinder I can feel it with my finger with if I push my finger.
I have pics but can't figure out how to upload them

  • Mick17

Posted August 24, 2012 - 04:37 AM

#2

http://s136.photobuc...45810904553.jpg
http://s136.photobuc...45810633618.jpg
Here are a couple pics......I'll see if I can get more

  • Mick17

Posted August 24, 2012 - 04:41 AM

#3

Here is one more from the bottom
http://s136.photobuc...45811943362.jpg
Thank you for any help or opinions!!!

  • Mick17

Posted August 24, 2012 - 04:44 AM

#4

Should I replace the cylinder or will it be ok to use this one again

  • Mick17

Posted August 24, 2012 - 07:29 AM

#5

No opinions?


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

Posted August 24, 2012 - 08:31 AM

#6

Run a brush hone through it quickly. If the line disappears in 3 quick passes, you'll be fine.

http://www.thumperta...759#post4380759

  • Mick17

Posted August 25, 2012 - 04:54 AM

#7

Thanks for the Info & Link.........I ordered a new cylinder. It would have just bothered me too much to use the old one!!! I'll only miss one more day of riding!!!

  • BBrown626

Posted August 30, 2012 - 05:27 PM

#8

What drove you to replace the valves and springs? I had to rebuild my tranny and replace my case at 135 hours and the original valves looked great. The springs were well within service limits. They went right back in there.

  • Charlie755

Posted August 30, 2012 - 08:33 PM

#9

Thanks for the Info & Link.........I ordered a new cylinder. It would have just bothered me too much to use the old one!!! I'll only miss one more day of riding!!!


Dang. You could have just send it to Millinium Technologies in Wisconsin. They do a better plating than OEM and they are typically a lot cheaper than buying a brand new cylinder.

  • Mick17

Posted September 01, 2012 - 05:59 AM

#10

What drove you to replace the valves and springs? I had to rebuild my tranny and replace my case at 135 hours and the original valves looked great. The springs were well within service limits. They went right back in there.

If they were bad I didn't want to wait for new valves and springs to come. I ordered all my parts a little at a time.

Dang. You could have just send it to Millinium Technologies in Wisconsin. They do a better plating than OEM and they are typically a lot cheaper than buying a brand new cylinder.

Do you have a web address for them? Maybe I'll send my old one for next time

  • Charlie755

Posted September 01, 2012 - 11:54 AM

#11

If they were bad I didn't want to wait for new valves and springs to come. I ordered all my parts a little at a time.


Do you have a web address for them? Maybe I'll send my old one for next time


http://www.mt-llc.com/

I use them all the time. Ask anyone here on TT that has used them. I highly doubt you will get any bad reviews on them. :thumbsup:





Related Content

Forums
Photo

Snake pit oct 30th by The Anvil


Dirt Bike   Dirt Bike Regional Discussion   California
  • Hot  293 replies
Wiki
WR Camshaft Swap Info - last post by jamesm113

WR Camshaft Swap Info


Articles
  • 0 replies
Forums
Photo

YZ450FX OR YZ450F by MESSMAKER


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  30 replies
Forums
Photo

Megabomb Fitment by 288yz450


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

James Stewart back on a YZ450F by YamaLink


Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  47 replies
 
x

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.