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Discussion Starter #1
Lifting the valve covers to check valve shims as I have just bought a somewhat neglected 2001 classic.
30000 km on the clock and no service history.
The spark plug tubes lift up with the covers rather than sitting nicely in the head as shown in my manual.
Obviously the covers won't come off like that, especially the pesky rear one so,
What is the best way to remove them from the cover without damaging them and seating them back in the head again especially the rear one where space is very tight.
Thank you for your thoughts, Rob.
 

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It appears from the manual that to get to those plug pipes you must take off the cylinder head covers. If yours are up, the the lower part of the tubes have become partially dislodged from the cylinder head. Here’s a few pages from the repair manual showing the procedure. Would be a good idea to replace the O ring seals on the pipes. Here is a parts diagram. Note pipes have a chamfered end that goes upward.

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wiggle the rear cover off by moving it back as far as possible and over the cam chain wheel, it does come off with a lot of trying and also some patience but it does come off, as for spark plug tubes just pull them up out of the heads and covers but be warned that they can break the plug caps wire inside so be careful when pulling
 

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Discussion Starter #4
Hello, thanks for you input but my question was the best way to remove the tube from the head.
On lifting the valve covers the plug tube is fixed into that, not fixed into the barrel.
Do they just jiggle out, do you tap them with a screwdriver etc ?
 

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Would some spray loosener like PB blaster help to soften the O ring. Isn’t it the O ring that dried out and holding the tube into the cover? The decision to use a screwdriver is yours because only you can see if they are strong enough to withstand the tapping. Obviously you don’t want to distort them. Can you get a pair of pliers around their middle section when you pull the covers up and gently wiggle them out. Said that because prying or tapping near the seal area may make them leak when reinstalled.
 
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