yz450f replace broken piston oil squirter

2 replies to this topic
  • Taggsladder

Posted December 13, 2013 - 03:44 AM




Had a piston fail on me and the carnage broke the oil squirter/nozzle that oils the underside of the piston. Luckily Yamaha sells them separately but how do I install it properly? It is not mentioned in the workshop manual. I am thinking of how to get it aligned right and install it so it does not come loose.


Do I just press it in with Loctite and eyeball it 90 degrees straight up?


Bike yz450f -09


How it looked (broke halfway thru). Have removed it completely.



How it should look



Fische #2



Best regards

Edited by Taggsladder, December 13, 2013 - 03:47 AM.

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

Posted December 13, 2013 - 07:59 AM


Wrong forum; moved here.


Some Loc Tite is probably a good idea, and yes, you have the installation pretty well figured out.  Dig the old one out without damaging the bore and drive/press the new one in pointing up. 


The point of the squirter is to cool the piston crown, not to lube the small end, BTW, although it ends up serving both functions.

  • Taggsladder

Posted December 15, 2013 - 02:42 AM


Great. Thanks!

Related Content


Snake pit oct 30th by The Anvil

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

WR Camshaft Swap Info

  • 0 replies

First Hare scramble tips by dhend8

Dirt Bike   General Dirt Bike Forums   General Dirt Bike Discussion
  • Hot  33 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

2016 YZ450 by CaptainKnobby

Dirt Bike   Dirt Bike Technical Forums   Suspension
  • Hot  59 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.