Anyone have a Tohatsu 9.8 outboard?

[SRMark]

I have a 2011 Tohatsu 9.8 hp outboard. I recently rebuilt the water pump and changed the oil. With it on a stand I shifted it to reverse and tried to turn the prop by hand. It turned a little then felt like it was in gear. I shifted to neutral and the prop spun free. I shifted to forward and as I spun the prop by hand it would turn about a quarter turn then pop again and again. Is this normal? I read that some Tohatsu outboards have a ratcheting clutch dog to make shifting to forward easy. Is that what this is?

 

[GnrlPatton]

I have one, not sure of the year though. I'll go try to repro your steps later and see if it does the same.

 

[km1125]

When you shifted in fwd if you turned the prop the other way would it lock in (and turn the motor)? If so, then you should be OK.

 

[SRMark]

I will try that. Thanks.

 

[Blueone]

I was in and outboard store today paying another phuckn bill. Guy walks in and wants an oil filter for a 9.9 merc…..parts lady says there isn’t one. He starts arguing ….. so of course I get involved like a dumb ass. I said your engine doesn’t have an oil filter….. he looks at me and says really….. I didn’t know that….. this was after arguing with the parts lady….. too funny…. Parts lady rolled her eyes

 

[SRMark]

I got home and tried to spin the propeller in the reverse direction with it in forward gear. It did engage and turn the motor so maybe I am okay. Thanks for the help.

 

[km1125]

I was in and outboard store today paying another phuckn bill. Guy walks in and wants an oil filter for a 9.9 merc…..parts lady says there isn’t one. He starts arguing ….. so of course I get involved like a dumb ass. I said your engine doesn’t have an oil filter….. he looks at me and says really….. I didn’t know that….. this was after arguing with the parts lady….. too funny…. Parts lady rolled her eyes

That depends on which 9.9 you're talking about. Below is a pic from the parts manual for the Mercury/Tohatsu/Nissan 9.9/15/18 HP four strokes and part #2 is the oil filter.

And here is what it looks like on the engine:

 

[firecadet613]

That depends on which 9.9 you're talking about. Below is a pic from the parts manual for the Mercury/Tohatsu/Nissan 9.9/15/18 HP four strokes and part #2 is the oil filter.

View attachment 125817

And here is what it looks like on the engine:
View attachment 125820

I've had two Merc 9.9s.... a '06 electric start and a '19 manual start. Neither had an oil filter - both four strokes.

Now my '20 Suzuki 15hp EFI does... just a canister filter...

 

[techmitch]

4 Strokes, as opposed to 2 strokes have a crankcase and most I assume would have an oil filter.
Not sure which one @Blueone was involved with.

 

[ttmott]

Yes they ratchet when you put in forward gear. They do not ratchet in reverse. And, they free spin in neutral.
My Merc 9.9 4-stroke and Tohatsu 20 4-stroke both do.
My Merc 9.9 which is a Tohatsu power head does not have an oil filter but the Tohatsu 20 does.

BTW - I wouldn't spin the engine backwards as that may damage the water pump impeller.

 

[kevin27]

Also be careful that the engine doesn't fire over with your hands on the prop turning the engine over. Little fuel left in cylinder and a spark could cause it to kick over and hurt your hand.

 

[SRMark]

Update. Yesterday I put the motor on it's stand in a plastic garbage can full of water. I started it and shifted to reverse and forward with the motor idling. It seemed fine in both directions. Tell tale stream was strong. I think it is good. Thank you all for the help and suggestions.