bottom of a 426 engine...

2 replies to this topic
  • 800screws

Posted September 19, 2006 - 01:45 PM


is there cast marks on the bottom of the cases that kinda look like cracks or straight lines of extra material? i'm trying to see if this engine has a hairline crack, and i'm not sure if it's one of these things...

Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • 02YZ426

Posted September 19, 2006 - 02:33 PM


The marks your seeing are likley from the casting..... if it were cracks, it would be leaking.

  • 800screws

Posted September 20, 2006 - 05:00 PM


i do have a leak! but they must be cast marks because there are more than one and oil is only coming from one spot.

Related Content


Wilson the Blue Privateer by jetfuel

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  50 replies

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

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

05 yz450f not fast enough by RedeyeYZ

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  38 replies

Megabomb Fitment by 288yz450

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

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.