Tracker Off-Road XTR1000 Service Manual page 48

SNO-660
NOTE: The numbers (A) stamped into the crank-

shaft web and the numbers on the connecting rods are
used to determine the replacement big end bearing
sizes.
SNO-661
For example, if the connecting rod "P1" and the crank-
shaft web "P1" numbers are "6" and "2", respectively,
then the bearing size for "P1" is: "P1" (connecting rod) -
"P1" (crankshaft web) or 6 - 2 = 4 (Green in the bearing
color code table below).
BIG END BEARING COLOR CODE
1
2
3
4
5
6
CRANKSHAFT JOURNAL BEARING
NOTE: Do not interchange the crankshaft journal

bearings. To obtain the correct crankshaft-journal-to-
crankshaft-journal-bearing clearance and prevent
engine damage, the crankshaft journal bearings must
be installed in their original positions.
1. Clean the crankshaft journal bearings, crankshaft
journals, and bearing portions of the crankcase. Place
the upper crankcase upside down on a bench.
2. Install the journal bearings into the upper engine
case.
NOTE: Make sure the tabs of the bearings are prop-

erly seated to the notches in the upper engine case.
SNO-684
3. Put a piece of Plastigauge® on each crankshaft jour-
SNO-320A
 NOTE: Do not put the Plastigauge® over the oil
hole in the crankshaft journal.
4. Install the crankshaft journal lower bearings into the
 NOTE: Do not move the crankshaft until the clear-
ance measurement has been completed.
5. Tighten the cap screws in the order of the embossed
Blue
Black
Brown
6. Measure the compressed Plastigauge® width on
Green
Yellow
Pink
SNO-320A
7. If the clearance is out of specification, select replace-
nal.
lower crankcase and assemble the crankcase halves.
numbers on the crankcase; then remove the lower
crankcase and the crankshaft journal lower bearings.
each crankshaft journal.
ment crankshaft journal bearings.
47