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Jeff G.
Jeff G., Marine Mechanic
Category: Boat
Satisfied Customers: 4724
Experience:  42 years experience, Certified Master Technician, All Major Outboards, Sterndrives, Hi-Performance
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I have a Yamaha 90 TLR and the shift shaft is very stiff....any

Customer Question

i have a Yamaha 90 TLR and the shift shaft is very stiff....any remedies?
Submitted: 2 years ago.
Category: Boat
Expert:  Jeff G. replied 2 years ago.
Depends on where the shift shaft is sticking.What year is your motor?
Customer: replied 2 years ago.
Customer: replied 2 years ago.
there is a black circular seal thing around the shaft....will i damage it trying to remove it? does it take a special tool?
Customer: replied 2 years ago.
the black thing has 2- 10mm bolts in the top
Expert:  Jeff G. replied 2 years ago.
That is the shift shaft bushing. I am assuming you have the lower unit off.With the lower unit off unbolt those two bolts and washers. Put a finget on the top of the shift shaft and push down. You may want a helper for this. While pushing down very gently pry up on the bushing. There is an O ring around the outside of the bushing and one on the inside where the shaft is. What we don't want to do is allow the shift shaft to come up.Gently pry up and using a back and forth motion pull the bushing up. You usually don't have to take the bushing off.Do this with the lower unit upright or you will spill gear oil.If there is corrosion around the O ring then replace it with a new one.If no corrosion they when you put it back in put a thin film of waterproof marine grease around the bushing,Put some grease on the shaft of the shift shaft below the bushing and push the bushing back down to lube the O ring inside. Put a little on the top of the shaft and pull it back up. We are just lubing the shift shaft O ring.Once it is entirely free then bolt it back down. Put the gearcase back on the engine and change the gear oil.That should free up the shifting.Post back if necessary.Thanks

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