Harley Davidson (1970 to 1978) Sportster XL/XLH/XLCH/XLT-1000. Service manual - page 8
3. Taper holes enlarged as a result of having been
taken apart several times. Replace wheel seating deepest.
4 Cracked flywheel at tapered hole. Replace flywheel.
If sides of forked rod are ground to get desired clearance, backs of
bearing retainers must be ground down to remain narrower than width of
female rod
After rod sideplay is checked and adjusted, tighten crank pin nut to 150
ft-lbs torque and install lock plate and screw Check wheel trueness on
truing device. Correct any run-out as above.
TRUING AND SIZING PINION SHAFT BEARINGS RACE
Before fitting new pinion shaft bearings, lap bearing race in crankcase
to true and remove traces of wear at sides of roller paths. A smooth
velvety finish should result. A race that is worn beyond limits of
oversize bearing rollers must be replaced See engine "SPECIFICATIONS,"
for shaft fit in roller bearing.