Just blew my yz 400 f engine!

25 replies to this topic
  • One Louder

Posted August 27, 2006 - 01:12 AM


you guys have no idea of the carnage. When I took the engine out of the bike the rod was pinned against the front motor mount bolt. and when you looked straight at the cylinder there was a 3" hole clear through to the other side. I think what happened was the piston siezed which broke the rod and sent it into the motor mount. and the force just exploded the engine. I went out to that same area the other day and found where it happened. there were pieces of my bike all over the ground and a trail of oil and skid marks on the pavement for 300 feet! Definately an experience, to say the least.

  • Daffy Duck

Posted August 27, 2006 - 04:47 AM


Hey that was good luck you sold it and got the DRZ good luck with that..

  • barch88

Posted August 27, 2006 - 05:17 AM


You might wanna change you're signature now..."YZ400F..Lovin' it" hahaha.

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

Posted August 27, 2006 - 08:40 AM


You might wanna change you're signature now..."YZ400F..Lovin' it" hahaha.

I just realized that too :ride:
but I did Love that bike! :thumbsup:

  • Motocross26

Posted August 27, 2006 - 01:58 PM


HOLY CRAP! :thumbsup:

Now that's some carnage.

  • blue450frider

Posted August 31, 2006 - 07:28 PM


I had this happen to me as well. I did mine in and couldn't even think about fixing it becuz how bad it was damaged. So i went to ebay and kept lookin to try and get a motor and i got one for 2400$ cdn. I suggest u try lookin around on ebay. watch out for all ready blow motors that ppl are tring to get rid of.

i have had no problems with it (250f) 02 bike 03 motor

good luck to u

Related Content


Need help by Goforaride

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  68 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

yz250x vs 450 4t comparisons (preferably desert riding) needed by JakeNorthrupYZ450F

Dirt Bike   Make / Model Specific   Yamaha   Yamaha 2-Stroke
  • 9 replies

yz400f throttle bog by yz400fmaniac

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • * * * * *
  • Hot  28 replies

Thinking about Yamaha 250... by Arctic Pride

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  491 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.