3-39
3
ATV-1074
3. Zero the indicator and rotate the crankshaft slowly.
4. Maximum runout must not exceed specifications.
NOTE: Proceed to check runout on the other end
of the crankshaft by positioning the indicator con-
tact at point 2 and following steps 3-4.
Measuring Crankshaft
(Web-to-Web)
1. Using a calipers, measure the distance from the
outside edge of one web to the outside edge of the
other web.
ATV-1017
2. Acceptable width range must be within specifica-
tions.
CRANK BALANCER SHAFT
Inspecting
Inspect the gear teeth and bearing surfaces for chips,
discoloration, or excessive wear.
KM724
Assembling
Crankcase Half
NOTE: For ease of assembling, install compo-
nents on the left-side crankcase half.
To assemble center crankcase components, install the
balancer shaft into the left-side crankcase half; then
align the timing mark on the balancer shaft with the
timing mark on the crankshaft. Install the crankshaft.
KM728A
Joining
Crankcase Halves
1. Verify that the alignment pins and a new gasket are
in place and that both case halves are clean and
grease free. Place the right-side half onto the
left-side half.
2. Using a plastic mallet, lightly tap the case halves
together until cap screws can be installed.
3. From the right side, install the crankcase cap
screws noting the location of the different-sized
cap screws; then tighten only until snug.
! CAUTION
Care should be taken to support the connecting rod
when rotating the crankshaft.
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Summary of Contents for ATV 250 Utility 2009
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