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Oh! And another thing you may want to adjust while you are in there and if you have enough shim range left.
Whilst 0.7 - 0.9mm valve clearance is ok I advise opening them out up to around 0.15mm if you can.
0.5 to .10mm is the old spec that the factory specified for the 900's but then amended on later models to .10mm to .15mm.
Things can get a little tight at the older specs ,especially when running the motors hard or upping the spec of the engine especially concerning aftermarket cams of which some give up to .20mm recommended clearance.

I just set them as close as I could get to 0.10, which is the max spec the factory manual shows. (I thought the 80's models called for the 0.10-0.15, ? ) But if that is okay to run them that loose on my engine, I wouldn't be opposed to it as I like to run things as safe as possible. But I really don't hammer on this bike too hard... too often... honestly!

They changed the spec in the mid/late 70's for the 1000's and the factory manual recommends applying that retrospectively to 900's too as they are all basically the same engine.
I have five zeds ranging from std to turbo'd and run all close to the upper .15mm if possible (shim range permitting) and once they dip below around .9mm I pull the heads and do what's needed to re-gain clearance but that takes many many 1000's of miles.
They will run happily at those higher .20mm race specs , they will run a little noisier but I find a loud pipe cures that

two weeks ago i put some cams in and in the book it says take a look and see if the shims are still in correctly. So I shin my flashlight quickly and yeah there in. Did not look very well. So I turn the motor ove by hand and PPPLINGGGGGGGG there goes a shim into obliffffffios somefrickin where in my place. So I have 80 shims and thank god found one the same and replaced it. If I had not run the motor thru the stages by hand and just put the valve cover on disaster. S o when it say take a look really look .

god I sound like nads when I drink

They changed the spec in the mid/late 70's for the 1000's and the factory manual recommends applying that retrospectively to 900's too as they are all basically the same engine.
I have five zeds ranging from std to turbo'd and run all close to the upper .15mm if possible (shim range permitting) and once they dip below around .9mm I pull the heads and do what's needed to re-gain clearance but that takes many many 1000's of miles.
They will run happily at those higher .20mm race specs , they will run a little noisier but I find a loud pipe cures that

Well this is good to know- thanks. I think most of my shims are around the 245 area, and I only have a few thinner than that... Might be time to build up the shim collection! Might be time to get a second job too!

I will trade shims as long as you pay postage. I have a few

god I sound like nads when I drink

Whaddya doing drinking during the day on a Monday, anyways?

Yeah, I'm going to be much more careful about those shims from now on. Speaking of drinking, little occurences like this are the reason I DON'T drink when I work on the bike Easy enough to F things up under normal circumstances!

east coast I start at 5 am

I appreciate the offer! However, I first need to buy a good range of them to even have ones to trade. I only own a few spare shims from 230-250. That's all that this bike has in it... a pretty close group!

just let me know what you need and send 1 for each i send plus shipping. I have 80 or more

Right on- Thanks!