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Shark mouth

Does any one measure their 520 chain to keep track of wear for replacement before it lets go? I'm going to start, but in 5 manuals I've found 3 different wear limits.

I maintain too many quads to just replace chain all willy-nilly. So far, I'm going with 16 links pin to pin is 10" Wear limit is said to be 10.98" That's .06" wear max per pin The worst "looking" one measures 10.02"

Been riding since before the internal combustion engine was invented and you're going to start measuring chain wear now?

Following Giving away "TSS" for FREE!!!

The pic ryan posted is the only bumper that will fit that quad. Anything else will look outta place imo.

I asked this before when i got my k&N setup: The k&n manual told me to make the right side richer(over the left side) by going up 3 extra steps on the mains and up the needle 1 position. Ofcourse i came here and asked why , since i couldnt come up with a logical explanation. Noone else could come up with a reasonable explanation at the time. i checked my plugs recently and the right side was a tiny little bit leaner. Could be an air leak, but i doubt it.