Blown Motor Advice

2 replies to this topic
  • yz426fride

Posted December 01, 2010 - 03:34 PM


i bought a 2002 YZ426f as my first dirtbike. on the first ride i dropped it, then it began to leak coolant. i stopped riding it and and managed to get it home. were i refilled the coolant on it and let it idle for a while. when the coolant level remained constant i took it for a test spin to see if it was just some freak accident. it was not. i seized the motor up. (Dont know why i thought riding it was a good idea)
the top end seems fine but the cylinder is fried and so is the piston and tie rod.

anyway when i removed the oil coolant came out has anyone had this problem if so what is it?????

Thanks so much

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

Posted December 01, 2010 - 04:59 PM


Blown head gasket.

  • 2001cr125

Posted December 01, 2010 - 05:15 PM


its a water pump seal

Related Content


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

Wilson the Blue Privateer by jetfuel

Dirt Bike   Special Interest Forums   Pro Racing
  • Hot  50 replies

2016 YZ450 by CaptainKnobby

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 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

BIGBORE FOR YZ450F 2006? by Taattie94

Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 5 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.