Cane not remove the lower end shaft from motor so I cane replace water pump on 9.9 gamefisher outboard

I believe I may have already answered this but in case you are a different person you need to put your shifter in reverse. Unbolt the leg from the motor and pull down. This will give you 3/8 of an inch play and allow you to reach in and unscrew the collier that holds the upper and lower part of the shifter rod. Once that is loosened pull down on the leg

Hello, Ron -

According to information in an owner's manual for a Gamefisher model # 225.581508 15" Transom and a model # 225.581498 20" Transom . . .
(Quote)
The model and serial numbers will be found on a decal attached to the port stern bracket.
(End quote)

Best wishes.

There are videos all over YouTube that cover this subject quite nicely.
winterizing an outboard motor YouTube

put it in forward gear. Drop the lower off by releasing the bolts and nuts holding it holding the lower on. (one is hiding under the back pick up screen)- some models had a plug in the back top of the exhaust/intermediate housing hiding an allen head bolt pointing down.

Once released, put a protector in a vise and clamp the lower to the bench.

2 screws or bolts will hold the water pump cover on. (the drive shaft runs thru it) Clean the carbon and rust off the drive shaft will allow the pump housing and impeller off the lower. Retrieve the funny looking key drive which runs the pump.

Inspect the shaft, the lower unit oil for water. and find all the pieces of the water pump impeller which may have gone places they shouldn't have.- including the outlet tube from the power head. Check this by putting a tube on the end and blowing- you should hear and feel the pressure in the exhaust and tell tale hole.

Now take the model number , the old pump parts to the marina for a replacement. Do a side by side comparison at the marina so you get the right stuff. Check the inside drive of the rubber impeller and see if they are exactly the same.

NOW- put the new wear plate / gaskets and drive key on, hold in place with grease. Slide the impeller on the key and spin the drive in both directions to be sure it has the impeller and will securely turn it.

Put grease in the cup of the pump housing to prevent dry start and help seat the impeller blades. Spin the shaft as you lower the housing in the pump so the blades all face in the right direction (clockwise). Screw in the bolts. Grease up the seal the watertube goes in and the spline end of the drive shaft.

Up the hole it all goes, now you only have to spline the shifter (it hasn't moved has it?) The drive shaft and the water tube all at the same time.

Check the shifter for correct position and bolt it down

TRY TURNING THE FLYWHEEL TO HELP LINE UP THE SPLINES ...
OR PUT THE LOWER UNIT IN GEAR SO THAT WHEN YOU ROTATE THE PROPELLER THE SHAFT TURNS... THAT SHOULD HELP YOU LINE IT RIGHT UP


HOPE THIS HELPS

yes!! there will be a cover in the back of the upper part of unit. you will need to remove this and disconnect the shifter from the lower end.

water pump is in the lower end of out drive and there is no t-stat

Common problem is the thermostats staying closed. If i remember correctly they should be replaced every year. Water should be spitting out on the upper part of the shaft. Good luck on that fishin'

Here is a website where a manual for you outboard may be purchased.  Outboard Marine went out of buisness in 2000 and thus no parts of origial manufacture are support is available . Therir are secondary markets .    THe Lower case splits in half and their is a seal around the prop shiftm which is pressed in. The seal between the cases are cut o-rings which are placed and glued into place with gasket seal.
The water pump is located where the case splits a little bit higher. You must open the little port on the side and take out one of the screws to the connecting shift linkage to split the case. After splitting the case the drive shaft and water pickup tube(s) wil come out of the powwer head or the tubs may stick into the power head which is ok. Place the lower skag into a vice and remove the 4 or 5 screws to the water pump housing. Remove and replace impellor and impellor plate if available. If part(pieces) of the rubber impellor is missing flush out the tubes and the power head to remove them.   When reinstalling the lower unit use a flash light to make sure that the tubes return  to the proper place in the power head and the shift lever is resecured. If you need more assistance, just write back. I was an Outboard motor mechanic for five years about the time of your motor.