I am a new owner of a 1981 GS850G that was apparently prettied up for a premium sale... and that lucky buyer was me! This is my 3rd bike and the first I have ever done any real work on ( previous bikes - 1988 Yamaha Radian 600 and 1991 Honda Nighthawk 750). Since I was always fortunate to have good sellers with past bikes, I never had to. I am mechanically inclined and know a decent amount about engines, etc. but I am no gearhead by any means. I hope to post a bunch about what I have done and some pics too at a later time.
I disassembled the whole top-end down to the base gasket. I cleaned everything, scraped gaskets (base gasket is a nightmare!!) and reassembled everything with gaskets from Vesrah. I used their "complete" kit, which still doesn't come with a few pieces I thought should be there... cam tensioner and starter cover gaskets I hand cut from gasket sheets (easier than I thought, but would have been nice to included those in a "complete set"). Also the head gasket washers were confusing and should be built into the head gasket or come with instructions. Took several hours of hunting on the GS forums to figure out where they go (installed on top of the head gasket over the corner four corner stud oil passages - I hope thats where they go!!). I sure hope they stayed in place when I seated the head as well.
Anyway... on to my questions.
When reinstalling the pistons I was following the shop manual which stated the TOP and 2ND ring are spaced at about 10 o'clock and 2 o'clock if looking at the piston from the top and the intake side is at 12 o'clock. SOMEHOW my dummy self was futzing away getting them all set and trying to slip the pistons into the cylinder sleeves and positioned them all REVERSE. So now my TOP and 2ND rings are all around 8 o'clock and 4 o'clock. (See image for positions).
How crucial is this going to effect the bike? I already buttoned up everything with the head now installed and torqued down. Cams are installed and cam guides are all torqued. I am just waiting on some shims to finish this part of the engine and put the valve cover on. It wasn't until after all that I was mentally running through all the assemblies that this issue popped in my head!
Any thoughts??
Again, thanks for the great resource site and I hope to post a bunch of things in return.
Special thanks the BikeCliff's website tutorials (shop manual PDF was a life saver too!!), the Carb Cleanup series on the GS Resources, Rob at Z1, and the o-ring guy at cycleorings.com (get all your o-rings there and stainless intake boot fasteners!) and all the posts I have read.
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