Dam, I just had to look up the Flywheel serial number and found it to be F4T102, yes for the 89-91 KX, i have a 2001 with the right Engine code (BEO22671). Now I have owned this baby for almost a year and have done some to it, Tires, plastic, 48kg race Tec springs, rebuilt forks, carb, Ect. This is the first time I have gotten into the engine so Surprise Surprise Surprise wish that one owner pecker head would have mentioned that to me (then again he was a 60 plus gent so I'm going to have to cut him some slack). My question what's the downside if any to the older fly wheel on the ignition, I can't find any numbers off the Stator unit so not sure if it's the same year or what.
Mad For SPEED. If only I could keep twisting the throttle infinitely to gather more Speed with no rev limiter.