Spark plug cavity dirty/wet


1 reply to this topic
  • forklord

Posted July 08, 2010 - 08:57 PM

#1

i checked my valve clearances today (all perfectly in spec after almost 100 hours :)) and when i pulled my plug there was a lot of dirt and a little water down there. i tried cleaning it out with a qtip with the plug out. dumb idea. got the water but some dirt probably got down in the cylinder. im assuming this was there only because i used a pressure washer? i put a minute amount of high temp marine grease around the spark plug cap seal just in case...

Edited by forklord, July 08, 2010 - 08:58 PM.
gRAMMER


Visit the ThumperTalk Store for the lowest prices on motorcycle / ATV parts and accessories - Guaranteed
  • andy250

Posted July 09, 2010 - 09:02 AM

#2

It's most likely getting in there through the spark plug weep hole when you wash your bike. This hole is located on the clutch side of your cylinder/head. Cover that hole when you was your bike. I use a golf tee, but tape will work too...

To clean the spark plug hole out - leave your plug in place, remove the spark plug cap, and shoot some air into the weep hole with your air compressor. This will prevent all of the junk from falling into the cylinder when the spark plug is removed.





Related Content

Forums
Photo

05 yz450f not fast enough by RedeyeYZ


Dirt Bike   Make / Model Specific   Yamaha   YZ 400/426/450
  • Hot  38 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
Wiki
WR Camshaft Swap Info - last post by jamesm113

WR Camshaft Swap Info


Articles
  • 0 replies
Forums
Photo

Should I buy this bike? help....... by Numsa Hul


Dirt Bike   General Dirt Bike Forums   What bike should I buy?
  • * * * * *
  • 10 replies
Forums
Photo

Megabomb Fitment by 288yz450


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