1984 Official Honda TRX200 Shop Manual, Page 134Get this manual
W SUB-TRANSMISSIONOUTPUT GEAR
Unstake the driven gear bear ing race lock nuts with drill or grinderBe careful that metal particles to nOI enter the bearing and the threads on the shaft are not damaged
HONDA TRX200
INNER RACE LOCK NUT SHAFT HOLDER 07923- 6890101
Remove the inner race lock nut and isca rd iL