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#3203607 - 03/25/13 05:28 PM boat motor ?
4 Point

Registered: 11/12/11
Posts: 161
Loc: milan tn

i have a Johnson 15 hp boat motor and when i put it in forward gear as long as i idle the boat will go forward but when i give it more gas it just revs up real high and never gets any faster could it be the forward gear i have not tried running it in revers but i have looked at the prop i do not think i have hurt that rubber gram mint any thoughts would be great
#3203704 - 03/25/13 06:46 PM Re: boat motor ? [Re: tcuurry]
16 Point

Registered: 11/10/10
Posts: 17083
Loc: Franklin TN

confused Online
Mine will occasionally slip at full throttle but usually only after running it most of the day. Haven't figured it out yet. I think removing some fishing line helped. Take the prop off and see if there is fishing line. If there is, make sure your lower unit hasn't got water seeped into the oil from the line cutting the seal. Hope someone else here with more knowledge on boat motors can help you pinpoint the problem.

#3203708 - 03/25/13 06:52 PM Re: boat motor ? [Re: catman529]
10 Point

Registered: 05/10/04
Posts: 2626
Loc: east tn

The linkage could need adjusting. The bushing in the prop could be worn to the point that it is slipping as well.
Tennessee roots over 200 years deep and growing.....

#3203745 - 03/25/13 07:29 PM Re: boat motor ? [Re: Bigg'un4214]
6 Point

Registered: 04/07/08
Posts: 624
Loc: West SSiiide Putnam Co.

you cant tell a spun out prop by looking at it, it needs to be under load, get a new prop youl be good to go
Down in a hollor....son

#3203757 - 03/25/13 07:33 PM Re: boat motor ? [Re: shorefisherman]
6 Point

Registered: 12/02/07
Posts: 543
Loc: Greene ,TN

 Originally Posted By: shorefisherman
you cant tell a spun out prop by looking at it, it needs to be under load, get a new prop youl be good to go

Does that mean the gear in the prop is stripped?

#3204058 - 03/26/13 06:50 AM Re: boat motor ? [Re: shorefisherman]
Unicam Administrator
16 Point

Registered: 12/13/00
Posts: 19421
Loc: Dallas, GA. & Cookeville, TN

 Originally Posted By: shorefisherman
you cant tell a spun out prop by looking at it, it needs to be under load, get a new prop youl be good to go

Agreed, my 35 Evinrude spun the grommet in the prop and you could not tell. Put a new prop on her and all was good.
"Gun Free Zones are for VICTIMS!"

John 15:13

#3204298 - 03/26/13 10:54 AM Re: boat motor ? [Re: Unicam]

Registered: 12/05/03
Posts: 27785
Loc: TN

Sounds like you spun the hub in the prop?
#3204348 - 03/26/13 11:26 AM Re: boat motor ? [Re: Winchester]
10 Point

Registered: 01/08/06
Posts: 3067
Loc: Middle

Couldn't you put it in gear (with motor off) and try to spin the prop? If prop is not spun you shouldn't be able to turn it.
"Smart is when you believe only half of what you hear. Brilliant is when you know which half to believe"

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