"Good Enjough" from who with what knowledge background? If your followers decide to only upgrade the spring where will they get one? Maybe a Eagle upgrader could sell them a spare spring for $35.
For the rest of you don't be sucked in to "almost good enough". The balancer lever and spring are a critical part of the KLR engine and how well it functions. Are you willing to settle for "almost good enough"?
From where did you obtain YOUR revelation, tomato city; "Buy an Eagle Mike doohickey or you'll burn in eternal hell?"
What is the FAILURE RATE of '08 and later doohickeys, tomato city?
Could it be, I don't know, ZERO?
The purpose of the dooickey is imparting torque to the balancer drive eccentric shaft to remove slack from the drive chain when ADJUSTING the chain tension; and . . . to HOLD the eccentric shaft position when tightened with the hold-down bolt.
Absent ANY evidence of malfunction or failure as the result of faulty design, manufacture, or materials from the latter-day OEM doohickey, I ain't sure lightning will strike you dead, and your KLR engine will turn into a pumpkin at the stroke of midnight, if you DO NOT replace the late-model doohickey with one of Eagle Mikes excellent aftermarket parts.
YMMV, and--I don't gainsay Eagle Mike's developments WITH '07 AND EARLIER doohickeys; however . . . expecting everyone to clone your own paranoia regarding the earlier component, when the later one is a much more robust part, appears unrealistic and maybe somewhat . . . well, the expression, "perfection by possession," comes to mind.
Otherwise, some KLR riders may not want or believe they need aftermarket doohickeys, as you insist everyone does.
Yet, I've an open mind--please share with us veifiable instances of late-model KLR doohickey failure; thanks!
Fit and finish of Eagle Mike's doo's are obviously superior to even the later OEM part, but . . . tomato city, what are the operational service-life advantages of upgrading an '08 or later KLR with an aftermarket doo? As in, increase in mean time/miles between failures; extended operating hours/miles of service life? (Share data, please.)
FULL DISCLOSURE: I have Eagle Mike doohickey and torsion spring on my '07
KLR650. (Yet, telling others they must avoid the '08 and later OEM doo like the plague, lest they suffer dire
consequences, appears alarmist, misleading, and irresponsible, to me.)