Can I use a 225 hp Evinrude powerhead on a 150 hp Eivinrude body if they are the same year? 1989

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Customer: Can I use a 225 hp Evinrude powerhead on a 150 hp Eivinrude body if they are the same year? 1989
Answered by MRYZ450F in 17 mins 11 years ago
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MRYZ450F
15+ years of experience
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60 satisfied customers

Specialities include: Marine mechanic, Diesel Engine Repairs, Boat Body Repairs, Boat and Watercraft Repairs


MRYZ450F :

No. Sorry. The Evinrude 150 is a 90 degree crossflow and the 225 is a 90 degree looper. They are 2 different critters. I hope this helped. Thank you.

<span class="JA_chatAuthorName"Customer:

So what is the difference?

<span class="JA_chatAuthorName"Customer:

And which evinrude short shaft (20") will work with my powerhead?

MRYZ450F :

Between the midsections or the powerheads?

<span class="JA_chatAuthorName"Customer:

Well I'm curious of why they won't work. I don't know what a looper is.

<span class="JA_chatAuthorName"Customer:

My engine is a 25" shaft and I'm looking to change it to a 20" My powerhead is brandnew so looking for options

MRYZ450F :

The looper uses 1 carburetor for each cylinder the crossflow uses 1 carburetor with 2 seperate circuits for each cylinder.

<span class="JA_chatAuthorName"Customer:

Ok so the exaust won't work?

MRYZ450F :

The drive shaft can be changed to a 20in but your best best is to find a blown parts motor to put your powerhead on.

<span class="JA_chatAuthorName"Customer:

Ok what size? Does it need to be a 225?

<span class="JA_chatAuthorName"Customer:

Or is there one of lesser hp usable?

MRYZ450F :

No the looper base has more of a rectangle shape to it and the crossflow has more of a square shape.

<span class="JA_chatAuthorName"Customer:

so can I use any other housing or does it need to be a 225?

MRYZ450F :

You can use the exhaust adapter off a 185 200-& 225 hp from 1988-1991. You can use the exhaust housing from a 120, 140 185 200 & 225 hp 1988- 1992

<span class="JA_chatAuthorName"Customer:

I'm lost. So I can use an entire 140 hp body with a 225 head?

MRYZ450F :

No just the exhaust housing you will need to use a 200-225 exhaust adapter.

<span class="JA_chatAuthorName"Customer:

ok so I can mount my power head on any of the hp and years you listed with a 225 adapter?

MRYZ450F :

Yes a 200-225 adapter 1988-1991

<span class="JA_chatAuthorName"Customer:

and they sell these adapters still?

<span class="JA_chatAuthorName"Customer:

So if I buy a 1898 185 hp evinrude my head will work if I buy an adapter?

MRYZ450F :

It shows to be obsolete. The part number is 398779. You can probably find a good used one on Ebay. You can use the whole thing.

<span class="JA_chatAuthorName"Customer:

Ok what is my best bet?

<span class="JA_chatAuthorName"Customer:

If I cant find a 225 (20"0 blown engine

<span class="JA_chatAuthorName"Customer:

so I cant use an adapte for the 150 huh

MRYZ450F :

Buy a 185hp or a 200hp. I'm sure 1 can be found easily. No sorry

<span class="JA_chatAuthorName"Customer:

ok thank you

Customer
will the 150 lower unit still bolt to the exaust housing your telling me to switch to? So if I switch to a 20" mid section on my 225 will the 150 lower unit bolt up?
You will need to use the 185 200 or 225 shift shaft. Everything else appears to be the same.
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MRYZ450F
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