Large valve clearance. On purpose?

[Steve]

Running a little loose for a couple thousand miles is preferable to running to tight or having to go back in a month from now and adjust them again.

Very true, but are you really going to go back and check it in a couple thousand miles? Because they tighten up (meaning they'll get quieter), and they are already relatively quiet to start with, it will be hard to guess when they reach that magic minimum clearance number. I see robertbarr's point, but I also agree with the majority of the others, I tend to leave them on the looser side. If you were to go to the next size shim on all of the valves, they would still be well within the middle of the range, so it's not really an issue of them getting too tight in a couple thousand miles. Besides, how fast do they change clearance, anyway? I have not noticed any changes worth changing shims for in the last 14,000 miles on my wife's 850, so I feel they have stabilized a bit, but that doesn't mean I never have to check them. 8-[

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[focus frenzy]

I bet they set the clearances using 16 valve specs by mistake!

80 1100E specs are .09 to .13mm

[doctorgonzo]

Very true, but are you really going to go back and check it in a couple thousand miles? Because they tighten up (meaning they'll get quieter), and they are already relatively quiet to start with, it will be hard to guess when they reach that magic minimum clearance number. I see robertbarr's point, but I also agree with the majority of the others, I tend to leave them on the looser side. If you were to go to the next size shim on all of the valves, they would still be well within the middle of the range, so it's not really an issue of them getting too tight in a couple thousand miles. Besides, how fast do they change clearance, anyway? I have not noticed any changes worth changing shims for in the last 14,000 miles on my wife's 850, so I feel they have stabilized a bit, but that doesn't mean I never have to check them. 8-[

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Some of it was working with what I had shim-wise. Example, a .04 wouldn't go under it and it had a 2.60X in it. I didn't have a 2.60, or a 2.55X only a 2.55. So I went from the 2.60X to a 2.55 which took me to .1. I COULD have put the cover back on knowing one was close to being too tight (or maybe already was) ordered a 2.60 and a 2.55X and waited for them to arrive, then pulled the cover again and gotten them perfectly in spec. Instead I said screw it, and put a 2.55 in there.