30 hp to 40-45 hp

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timbeck

Recruit
Joined
Jul 13, 2011
Messages
1
Wondering if I can change out 1986 johnson 30 hp carb to a 40-45 hp I have done this on 9.9- 15hp wondering if I can do this to the 30hp.

Thanks Tim
 
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wilde1j

Vice Admiral
Joined
Apr 15, 2002
Messages
5,964
Re: 30 hp to 40-45 hp

Heck, why stop at 45HP? There's more to this than changing a carb. If you want more HP, buy a bigger motor. While the carb on smaller motors fit, you don't always more more HP, just more fuel used.
 
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Seaclusion1

Recruit
Joined
Jul 17, 2011
Messages
2
Re: 30 hp to 40-45 hp

I am new to the forum and just posted a request for info to upgrade my 9.9 2 stroke to 15 hp.... saw that you said you had done this, can you give me some info on what is needed. I was told it was either the reed valve or the carburetor that could be swapped out to do this. Any assistance appreciated.
Ted
 
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tx1961whaler

Vice Admiral
Joined
May 31, 2008
Messages
5,197
Re: 30 hp to 40-45 hp

Swapping the carbs on older ones will work. There are more extensive changes between the two on later models.
 
milliesdad

milliesdad

Petty Officer 2nd Class
Joined
Dec 20, 2010
Messages
168
Re: 30 hp to 40-45 hp

Sell the 30 and buy a 45.

Real easy. Only one part to swap.
 
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