Join Date: Nov 2009
Location: Lander, Wyoming
In the USA, the frame VIN and engine serial # do Not usually match, unless required by the country of manufacture.
That said, your KL600AE001411 engine # is probably truly a 1984 kickstart only replacement engine, as you already suspected. The 1984 RH main engine case would not even have the 2 mounting towers for the RH end of a starter motor.
Your kickstart and clutch parts may be worth more than your entire bike to some KLR650 riders!
Modify at "YOUR OWN RISK"!
Still riding my 1987 KL650-A1. 85,000+ miles & counting