Decompression Hole Plug


1 reply to this topic
  • BASSic

Posted March 16, 2009 - 12:35 PM

#1

I did the cam swap, and finally got a chance to ride yesterday. I can't believe I waited so long to do the swap!

I bought the plug to fill the hole in the head (where the decompression mechanism used to be), and it appears that I didn't seat it properly because there was oil leaking onto my header all day yesterday. The plug has an o-ring, however I wasn't able to get the plug flush with the hole. I'm sure if I could get this plug flush my oil wouldn't be leaking, but unfortunately the radiator is in the way and I can't get a rubber mallet in there.

Are there any tips/tricks to seat the plug so it's flush, without having to remove the right radiator?

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

Posted March 16, 2009 - 12:50 PM

#2

There should be a groove cut in the plug that is supposed to anchor the plug in place by using the decomp shaft retainer bolt. The bolt is removed, the plug inserted to the point where the groove aligns with the bolt hole. If it seems not to want to slip in, be sure there are no burrs on the bore, apply a little grease to the O-ring, and press it in with pliers, like this:

Posted Image





Related Content

Wiki
WR Camshaft Swap Info - last post by jamesm113

WR Camshaft Swap Info


Articles
  • 0 replies
Forums
Photo

05 yz450f not fast enough by RedeyeYZ


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

BIGBORE FOR YZ450F 2006? by Taattie94


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • 3 replies
Forums
Photo

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
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
 
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.