Honda BF8, BF9.9 and BF10 Outboard Motors Shop Manual., Page 307Get this manual
Faulty Power Tilt Assembly Quick Reference Chart
Symptom aoes no tilt up Pre Lower chamber Upper chamber hydraulic presExtended hydraulic pressure low or drops sure low or drop, side Check point Checklrepair method Check the motor ening, damage or foreign materialCheck the O-ring for damage, replace if necessaryReplace the manual valve if necessary
See page 2-6
Q Manual valve Check the manual valve for tight-
Free piton,
O-ring, backup ring
Check the O-ring and backup ring for damage, replace if necessaryReplace the piston rod assembly if necessaryCheck the O-ring, dust seal for damage, replace if necessaryCheck the oil level and add if necessary age, wear or foreign materialClean and reassemble the spool valve properly
Piston rod,
O-ring, dust seal
ber check valve
Upper cham- Check the check valve for dam-
(7) Spool valve (with built-in upper relief valve)