Powerhead
90-8M0050731 MAY 2011 Page 4A-57
10. Tighten the perimeter screws to the specified torque.
a - Upper end cap screws (4)
b - Lower end cap screw (4)
c - Center main screw (8)
d - Perimeter screw (6)
Tube Ref No. Description Where Used Part No.
14
2-cycle Premium
Outboard Oil
Center main screw and perimeter screw threads and face 92-858021K01
Description Nm lb‑in. lb‑ft
Upper end cap screws 17 150
Lower end cap screws 9 80
Center main screws 51 37
Perimeter screws 20 180 15
Reed Block Assembly
IMPORTANT: Do not remove the reeds from reed blocks unless replacement is necessary. Do not turn used reeds over for reuse.
Replace reeds in sets.
1. Thoroughly clean the gasket surfaces of the reed blocks and reed block housing. Check for deep grooves, cracks, or distortion
that could cause leakage. Replace parts as necessary.
2. Inspect the reed block neoprene surface for wear, cuts, or abrasions. Replace the reed blocks as necessary.
3. Check for chipped and broken reeds.
a - 0.51 mm (0.020 in.) opening
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