NOTE
Split the crankcase again, measure each clearance between the bearing insert and journal [B] using plastigage (press gauge).
Crankshaft Main Bearing Insert/Journal Clearance
Standard: 0.010 0.034 mm
(0.0004 0.0013 in.)
Service Limit: 0.06 mm (0.0024 in.)
If the clearance is within the standard, no bearing replacement is required.
If the clearance is between 0.035 mm (0.0014 in.) and the service limit (0.06 mm, 0.0024 in.), replace the bearing inserts [A] with inserts painted blue [B]. Check insert/journal clearance with the plastigage. The clearancemay exceed the standard slightly, but it must not be less than the minimum in order to avoid bearing seizure.
If the clearance exceeds the service limit, measure the diameter of the crankshaft main journal.
Crankshaft Main Journal Diameter
Standard: 34.984 35.000 mm
(1.3773 1.3780 in.)
Service Limit: 34.96 mm (1.3764 in.)
If any journal has worn past the service limit, replace the crankshaft with a new one.
If themeasured journal diameters [C] are not less than the service limit, but do not coincide with the original diameter markings [D] on the crankshaft, make new marks on it.
Crankshaft Main Journal Diameter Marks
None 34.984 34.992 mm (1.3773
1.3776 in.)
1 34.993 35.000 mm (1.3777
1.3780 in.)
: Crankshaft Main Journal
Diameter Marks (“1” or No
Mark)
[A]: Crankcase Main Bearing Inside Diameter Marks, “” or no mark.
NOTE
The mark already on the upper crankcase half should almost coincide with the measurement.
Crankcase Main Bearing Inside Diameter Marks
38.000 38.008 mm (1.4961
1.4964 in.)
None 38.009 38.016 mm (1.4964
1.4967 in.)
Size Color [B]
*: The bearing inserts for Nos. 2 and 4 journals have an oil groove, respectively.
Clutch
Clutch Operation Inspection
Pull the clutch lever just enough to take up the free play
[A].
Measure the gap between the lever and the lever holder.
If the gap is too wide, the clutch may not release fully. If
the gap is too narrow, the clutch may not engage fully. In
either case, adjust ...
Coolant Flow Chart
1. Radiator
2. Radiator Fan
3. Water Pump
4. Oil Cooler
5. Oil Cooler Intake Hose
6. Oil Cooler Outlet Hose
7. Cylinder Jacket
8. Cylinder Head Jacket
9. Thermostat Housing
10. Air Bleeder Hose
11. Radiator Cap
12. Radiator Overflow Hose
13. Reserve Tank
14. Reserve Tank Overflow Ho ...
Connecting Rod Installation
NOTICE
To minimize vibration, the connecting rods should
have the same weight mark.
Big End Cap [A]
Connecting Rod [B]
Weight Mark, Alphabet [C]
Diameter Mark [D] (“” or No Mark)
NOTICE
If the connecting rods, big end bearing inserts, or
crankshaft are replaced with new ones, select ...