Good Morning, Last night I measured my valve clearances for the very first time (I know...) on my DRZ400S. It's a 2002 and I've owned is since 2011. I bought it with t's got about 15,000 miles on it and most of it's miles these days are on dirt. Intake specs are 0.10-0.20 mm. Exhaust specs are 0.20-0.30 My intake valve clearances are in spec, forgot to write them down. My exhaust valve clearances are between 0.1778 and 0.2032 which is slightly out of spec. They are no more than 25 microns out of spec. My question is, do I really need to shim these? Will this kind of out-of-spec cause performance, mechanical, or other losses? As far as I can tell, I'd have to buy a whole shim kit which is like $80. Thanks!