if the shift drum hung up when you split the case, it would lift up and let the shift stop slap behind it. glad it's fixed. 99.9% of all yamaha dirt transmissions are identical in design (and for that matter most any trans with a shift drum....), just minor changes. never had a 465/490 apart, but it's gotta be the same as all the others...just less gears..
07 gasgas xc300-94 duc 900ss-86 morini camel (2)-84 IT200-83 IT175-78 guzzi lm1-77 pursang 250-76 morini 3 1/2 strada-76 frankentaco pursang 200-74 frankentaco pursang 200-74 morini 3 1/2 sport-74 mz ts250/0-74 puch 175 (3)-73 can-am 175tnt-71 guzzi frankeneldo-71 ossa Stiletto-70 frankentaco sherpa s(2)-66 morini corsarino(2)-63 morini corsaro + many more