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Valve cover gasket removal...

if you've removed all the bolts (double-check this in your manual), a few taps with a rubber mallet around the perimeter of the valve cover should break it free. you'll know from the sound. i'd keep tapping around, rather than using a screwdriver to pry the cover off. this will avoid marring the aluminum mating surfaces. depending on the bike, you may need to remove the breather assy and horn, and tie up the plug wires up and out of the way. make sure to keep the plugs in, this will keep the crap that falls as you wiggle the cover free from getting into the cylinders.
 
CowboyUp: Thanks for the insight. She's a '78 GS750 that I don't think saw regular service for over twenty years. My quest to figure out what to safely do led me to this thread, and so I simply built upon it (there really is good stuff in here!).
Stands: I've gone back with a hammer & wooden dowel as a tapper. This has to be the original install cause this is on but good!! I've moved on to sending PBlast down the seams for the night & considering a stiff putty knife down the outter edges, aiming dead center of the gasket. Between this & trying to get the intake tubes off I'm bouncing off brick walls. At least THERE I have two screws backed out, so SOME progress!!

Thanks again for your advice. Fingers crossed...tomorrow.
 
very good, hope you have some luck. my 79gs550 is all original, and most fasteners are unmarked. without my hand impact they'd be well-marked but still in place. : )

i've been refreshing an early UJM or two every off-season for prob 25 years now, i REALLY need to get a set of JIS tools.
 
"I've been refreshing an early UJM or two every off-season for prob 25 years now, i REALLY need to get a set of JIS tools."

LOL Ya think?!? Thanks for the encouragement : ) I'll post progress if/when.
L8r.
 
Okay, so with a stiff putty knife & a mallet I was able to get the valve cover free in about 45-60 min.s. Was ever so careful not to go too deep within the cavity, making several passes along each seam I could reach. Overall clean up is needed next, but it got too darn cold & late in the day to move forward (I did also make progress on the intake boots thou-see new post within the 'carb/fuel/exhaust' forum on that experience). It's a good day of progress - I'm happy!:)

Thanks again for the support, guys! Bring On 2019!!
 
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