Transom Riser

Boating related questions,small projects, custom work and talk go here.
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ProduceMan
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Joined: 14 May 2015, 19:14
Location: San Diego Ca.

Transom Riser

Post by ProduceMan » 10 Feb 2019, 14:06

I have a short shaft Johnson 15 and a short transom. Cav plate still 1 1/2" below the hull. I have a chance to buy a static mount kicker bracket for cheap. Could I use just the poly mounting board and bolt it outside the transom to get the desired rise. The bracket is rated to 15hp. The poly board would result in a 2" setback. Good idea or no?
1973 Hewescraft Big Fisherman 14
1980 Johnson 15
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bcbouy
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Transom Riser

Post by bcbouy » 10 Feb 2019, 15:04

i don't see any reason why it wouldn't work.if it were any higher hp or heavier 4 stroke i'd consider a mechanical jackplate,however i personally would not trailer it in the lifted position. t-h marine makes a small jackplate for around $100.bass pro as well.
if all else fails....stop using all else

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LDUBS
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Transom Riser

Post by LDUBS » 11 Feb 2019, 02:17

Not trying to be a wise guy here. What will you gain by doing this?
Have Rod - Will Fish

lckstckn2smknbrls
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Transom Riser

Post by lckstckn2smknbrls » 11 Feb 2019, 09:06

My motor is a longer short shaft and I run a T&H mini jacker, It's great.
1971 14' Ward's Sea King Jon Boat / 1983 Mariner 25HP

lovedr79
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Transom Riser

Post by lovedr79 » 11 Feb 2019, 09:53

i got one off of a member here. worked great! solved my issues with porposing and added more speed. also would get up on plane faster.
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onthewater102
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Transom Riser

Post by onthewater102 » 11 Feb 2019, 17:22

I used 1/4" aluminum angle for mine & got about 4" of setback in the process.

LDUBS - it gains you a little top end speed, a little acceleration and (done by yourself) doesn't cost much.
I have a marriage license and a fishing license, but I only carry one in my wallet.


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2002 Alumacraft 1436LT w/ 1984 Mariner Tiller Converted to Remote & 55# Minn Kota Terrova 12v (removable)

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bcbouy
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Transom Riser

Post by bcbouy » 12 Feb 2019, 01:33

some also say that a little setback also helps a little with the handling,but with a 15 it probably wouldn't be noticeable.
if all else fails....stop using all else

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onthewater102
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Transom Riser

Post by onthewater102 » 12 Feb 2019, 02:12

I think if anything my 1436 lost a bit of handling vs having the prob burried another 2.5 inches in the water. I noticed I can blow my prop out cutting turns too hard now that I could make with ease in the past.
I have a marriage license and a fishing license, but I only carry one in my wallet.


For Sale - Custom Hand Tied Jigs, Bladed Jigs,Custom Rods

2002 Alumacraft 1436LT w/ 1984 Mariner Tiller Converted to Remote & 55# Minn Kota Terrova 12v (removable)

1985 Bass Tracker III - Restoration w/ 1988 Mercury 60hp

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bcbouy
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Location: british columbia canada

Transom Riser

Post by bcbouy » 12 Feb 2019, 11:04

that's where power trim or the lack thereof comes into play.with a 15 hp you have limitations.my 25 ss tilller tohatsu would cavitate in tight turns if i didn't adjust the trim accordingly.
if all else fails....stop using all else

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onthewater102
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Transom Riser

Post by onthewater102 » 13 Feb 2019, 16:57

That's phase 2 of the riser build slated for this year...hopefully successfully adding a power trim adjustment. Until then you're right, I'm stuck with the trim at a fixed position.
I have a marriage license and a fishing license, but I only carry one in my wallet.


For Sale - Custom Hand Tied Jigs, Bladed Jigs,Custom Rods

2002 Alumacraft 1436LT w/ 1984 Mariner Tiller Converted to Remote & 55# Minn Kota Terrova 12v (removable)

1985 Bass Tracker III - Restoration w/ 1988 Mercury 60hp

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