Yeah! There are always the 'typical' failure modes that we see over and over... but then there are the 'what the hell?' ones that haven't been seen before and don't make a lot of sense, until you find and fix them. I don't especially like that kind. They don't adhere to my anal retentive engineer's logic! But in the long run, they add to the database for troubleshooting next time.
'01 660 Raptor, Burgard +2+1 arms, YFZ Shocks, LSR anti-vibe, CTR pipe, jetted, K&N
'01 Polaris Scrambler 400, K&N
'02 Honda 400ex, Big Gun pipe, jetted, K&N, Lonestar +2 A-arms, Lonestar anti-vibe
'04 Suzuki LTZ400
'16 RZR XP4 1000 Turbo