1) Measure the idle gear shaft outer diameter using a micrometer.
Note
Standard: 43.459 to 43.480 mm { 1.7110 to 1.7118 in }
Limit: 43.345 mm { 1.7065 in }
2) Measure the inner diameter of the idle gear bushing using a dial gauge.
3) Calculate the clearance between the idle gear and idle gear shaft.
Note
Standard: 0.020 to 0.062 mm { 0.0008 to 0.0024 in }
Limit: 0.20 mm { 0.0079 in }