Chain play?


2 replies to this topic
  • DirtNasty

Posted March 09, 2010 - 02:19 PM

#1

how much chain play should you have??? i have a 03 yz450. it has around an inch to an inch and a quarter? im thinkin i got a case of chain stretch. if it comes down to it what length should i get for a new chain? stock sporckets.\
thanks

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

Posted March 09, 2010 - 03:07 PM

#2

Sounds like you could use a manual:

http://www.yamaha-mo...ice/manuals.jsp

Put the bike on a stand with the wheels off the ground and pull up on the chain just over the bolt that holds the rear end of the chain slider on the swing arm. measure from the chain down to the bolt while you hold it up. The '03-'05 REQUIRES a minimum of 1.6" (1 5/8"), and should be no looser than 2.0".

To determine whether your chain is worn out or not, wedge a rag or a piece of wood between the chain and rear sprocket to draw the chain tight and one pin on the chain near the front of the run. Calling that one "pin zero", start at the next one to the rear and count 20 more, or 30, if you have room between sprockets, and mark it. Then measure the tightened chain between marks. A new chain will measure 12.5" over 20 pins, and 18.75" over 30. If you get more than 12 11/16 (20) or 19 1/16" (30), the chain is shot.

The stock length is 114 pins.

  • DirtNasty

Posted March 09, 2010 - 03:18 PM

#3

sweet! thanks...your right i do need a manual for it... thanks for the info.





Related Content

Reviews

Yamaha YZ450F 2017 by Chris.GVS


Yamaha YZ450F 2017
  • - - - - -
  • 0 reviews
Forums
Photo

Chubby dad, looking at bikes , First trip to the orange/black forum ! by Slow_ride


Dirt Bike   Make / Model Specific   KTM   250-530 EXC/MXC/SXC/XC-W/XCR-W (4-Strokes)
  • Hot  28 replies
Wiki
WR Camshaft Swap Info - last post by jamesm113

WR Camshaft Swap Info


Articles
  • 0 replies
Forums
Photo

Snake pit oct 30th by The Anvil


Dirt Bike   Dirt Bike Regional Discussion   California
  • Hot  293 replies
Forums
Photo

Megabomb Fitment by 288yz450


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