Honda Outboards BF40A/BF50A Service Manual, Page 398Get this manual
BF40A-BF50A Faulty Power TrimITiit Assembly Quick Reference Chart
Symptom Does not hold Does not Does not tilt downContracted Extended tilt up side side
Pressure Lower chamber Upper chamber blow pressure blow pressure low or drops low or drops -
Check point See page 2-7
Checkrepair method Check the motorening, damage or foreign materialCheck the O- ring for damage, replace if necessaryReplace the manual valve if necessary
CD Motor
2 Manual valve Check the manual valve for tight-
Free pitonO-ring
O-ring, oil seal
Check the O-ring for damagerepace if necessaryCheck the O-ringoil seal for damage, replace if necessaryReplace the piston rod assembly if necessaryCheck the oil level and add if necessaryage, wear fo reign materialClean and reassemble the upper chamber check valve properly_,-
Piston rod,
Upper cham- Check the check valve for dambercheck valve