289
MIDSECTION
EXHAUST HOUSING
11
Cleaning and Inspection
Clean all parts with parts cleaning solvent and dry
with compressed air. All nut and screw threads
coated with thread locking material must be thor-
oughly cleaned before assembly. When using a
thread locking product, be sure to prime the
threads with Locquic Primer.
Examine the upper and lower thrust mounts, and
replace if deteriorated or damaged.
Before checking the exhaust housing for distor-
tion, thoroughly clean the top and bottom mating
surfaces and remove all sealer and corrosion.
Check the exhaust housing for distortion. Place
the housing on a surface plate. Using a dial indi-
cator, check flatness by measuring the run-out on
the top edge of housing. The maximum allowable
run-out is 0.009 in. (0.228 mm). If you do not have
access to a dial indicator and surface plate, seek
the services of a machine shop. DO NOT attempt
to straighten a distorted housing. Replace it.
IMPORTANT: A distorted exhaust housing will
cause the upper driveshaft splines to wear exces-
sively and will damage the crankshaft splines.
Inspect the water tube for obstructions or kinks,
which may restrict water flow.
Assembly
V4 MODELS
Assemble linkage to exhaust valve shaft as
shown. Be sure the word “OUT” on the lever is
facing away from the shaft.
Place rear of inner exhaust housing on bench.
Arrange exhaust valves and linkage as shown.
WARNING
Wear safety glasses to avoid personal
injury, and set compressed air to less than
25 psi (172 kPa).
DR2223
1. “OUT” mark 005213
005214
1
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