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[QUOTE="Vic, post: 207538, member: 18322"]
I picked up my ' 02 RM 125 yesterday and I'm really liking it, but I have a couple of questions.

Spark plug- The stock plug is an NGK R6918B-8 . Since I refuse to pay thirty bucks for a spark plug that won't clean, gap or change itself, I'm wondering if a BR8ES is an acceptable alternative. Particularly, is it the same heat range?

Power valve spring preload adjuster- The only thing I can find about it in the manual is that it's supposed to be turned in one turn. How far in is it acceptable to turn it? I assume that increasing the preload on the spring will either delay the opening of the power valve or limit how far the valve will open. Which assumption is correct? I want to experiment with it, but I don't want to damage anything by tightening it too much. I already tried turning it in one half turn, which really smoothed out the power. I like the reduced hit for woods riding. Am I limiting the top end by doing this? Can I safely turn it in even further?

Thanks in advance for any help.:cool:
[/QUOTE]

Verification

Which ocean is California closest to?