There was recently (since first of the year) a 2003 thread brought to the top.
I thought the information in the old thread is perfectly valid and see no reason to lock this thread. Look at the prior information that was posted in 2004, that would have to be reposted if a new thread were started:
- fricker66 - Frederick's post on techniques for plug change
- Rockledge - links to applicable write-ups on shotimes.com
- yamahaSHO - Jason's image of the engine with the intake off
- Dave Ladely - Dave's information of the NAPA spark plug socket
- Off Road SHO - Tom's techniques and how to remove the oil
Not to mention that Dave Ladely hasn't been on the forum in three years - anyone know which NAPA socket he was referring to?
My point is that there is value in bringing prior threads to the top that contain "corporate knowledge", versus starting a new thread in which such information might otherwise be lost, as well as adding to the forum's database size in reposting information that does resurface.
Further - case-in-point. I tried the squirt bottle method posted by
SuperHO, only to have the pump fail on the second cylinder. After wasting the gas to exchange the "bad" squirt bottle, the second failed before completing the third cylinder. Why? My best guess is that the synthetic oil - which is petroleum-based - was disolving the plastic seals in the squirt bottle's pump. I then used an air hose to blow-out the oil after diluting it with PB Blaster - the same technique that Tom posted in 2004. Will everyone think of using the air-hose technique - probably not.
The biggest reason why you should NEVER allow the oil to simply drain into the cylinder (especially if someone else previously maintained the engine), is because you don't know what's in that oil. Second case-in-point.
Prior to the 60K done in November, I cleaned the oil from the plug wells as a pre-60K maintenance. After removing the oil, I found UP TO A TEASPOON of beach sand in each plug well (the prior owner's daughter attended UMass and apparently went beachcombing, as there was sand all over the engine under the intake). Most, if not all of that sand would have ended-up in the cylinders and spark plug threads had I simply pop-the-plugs.