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25hp or 30hp for 1652?

15K views 51 replies 19 participants last post by  T Man 
#1 ·
I have a G3 1652, dry weight 400lbs. I'm just getting it and need a motor for it. I found a great deal that came up on a new leftover 25hp manual Yamaha for $2500 from a dealer. I had planned on getting a 30hp and the best deal I could find was on a tohatsu with power tilt/trim and elec start for $4300. My question is, would the 25hp do ok for me with 2 guys and gear or would the extra $1800 be worth the 30hp with elec? That's a big price difference. The yamaha would only have 2 year warranty as the dealer registered it last year and the tohatsu would have the factory 5. I don't run a lot of open water, but there are a few places I've found that I wouldn't mind checking out that is about 1 mile each way.
 
#2 ·
I would argue to even look into a 40HP for a 16ft boat. But hands down get the 30HP out of the two.

Would you rather have enough power to push 2 guys+ gear with ease or spend that extra $1800 later on down the road when you find out that 25hp was just enough to get around with, and working harder I'd bet it'll burn more fuel.

we've got a 48spl Evinrude on our 16'10" semi-V river fishing boat and it gets around pretty good on the MO river loaded with 4 guys and river fishing gear. I wouldnt want much less motor because then you'd have trouble getting around decently without having to run tached out all the time.
 
#4 ·
I would go bigger my 16' modV crestliner has a 50 yamaha on it (max hp) just me in it I can get around 45mph out of it. I get 7 miles to a gallon also.

I always max out the hp on all my boats, it's better to have it and not need it than be caught with your pants down.

Btw between the two engines I will take a yamaha anything as they are pure workhorses. I would not recommend merc/tohatsu they are not cold blooded and are made cheap. Put the money in now and stay on the water instead of in the shop.

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#6 ·
most the time youd be fine with the 25, most hp numbers on the side of the motor are just an estimate anyway, mercury has more horses than they label. i have a 25 and 40 merc 2 stroke, once i'm up on plane my wot is close in speed., you can always play with the prop to get what you want out of it.
i'm sure you can find another 1652 with a 25 on it,
 
#7 ·
ed m said:
most the time youd be fine with the 25, most hp numbers on the side of the motor are just an estimate anyway, mercury has more horses than they label. i have a 25 and 40 merc 2 stroke, once i'm up on plane my wot is close in speed., you can always play with the prop to get what you want out of it.
i'm sure you can find another 1652 with a 25 on it,
Boat motor manufactures are allowed a 10% +/- variance in actual HP output VS rated HP. Also Hull makers are required to underrate the HP a hull can handle by about 10-15%.

So its not uncommon to have a 225hp motor pushing closer to an actual 245HP.
 
#8 ·
Swanny said:
The 25 is a 4 stroke and we're talking about twice the money, or $5300 for a 30hp yamaha or $5600 for a 40hp. That's a pretty good chunk of change over the 25 or even the tohatsu 30hp for $4300.
It is a chunk of change. Like I said earlier I wouldn't even take a merc/tohatsu even if you gave it to me. Total pos. Trust me I run Erie multiple times a week(not right now as its ice fishing weather).....you with only see two engines on boats for the most part. Etec or Yamaha. Both are great engines. I wouldn't recommend looking at anything else. I have more experience with the yamahas and have been using them since the mid 90s. Now all of my rigs have 2011-2013 4 stroke yams on them and they are workhorses just like their older 2 stroke modles!

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#10 ·
I'd get that 25 Yamaha over the 30 Tohatsu. Yamaha's are generally better quality and hold their resale value much better. Besides, $2500 is a good price on a new Yamaha even if it was registered last year. A 40 hp Yamaha would be better, but if the 25 hp is more in your budget, I'd say go for it.
 
#12 ·
Several ways for me to look at this:

Yamaha over Tohatsu
two stroke over four
30hp over 25hp.
40hp is even better
if money is tight, go manual start
if you can afford the extra $$ for the e-start and the batteries, and the hassle of charging the batteries, go electric
always use the maximum power rated for the boat as the minimum that you bolt on the transom
 
#13 ·
mudpack said:
Several ways for me to look at this:

Yamaha over Tohatsu
two stroke over four
30hp over 25hp.
40hp is even better
if money is tight, go manual start
if you can afford the extra $$ for the e-start and the batteries, and the hassle of charging the batteries, go electric
always use the maximum power rated for the boat as the minimum that you bolt on the transom
X2

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#14 ·
25 -30 will be no different in performance. Carbed 4 stk are junk. Find a good 2 stk 40-50 or you will be looking for one soon after you put on the 25-30hp. I will guarantee it.
 
#15 ·
A 40 HP will barely cut it with two guys and an average hunting load with a dog. Three guys forget it...my 1648 with a hard full frame permanent blind. I run a 70 HP 2 smoke. Full load three guys and dog, I'm getting high thirties to low forties depending on load. It is propped for hole shot not top end. You will burn up a small motor by constantly pushing heavy loads when theres not enough power to keep the boat on plane. Would you tow your boat with a 4 cylinder or an 8 cylinder? Same concept. Your boat may plane slightly better than a 1648 with a heavier load due to the extra few inches of displacement. As others have said, 2 stroke and a minimum of 50 HP. 65-70 HP and you will have a machine that can move your hunting buddies comfortably and you won't be lacking any power.
 
#16 ·
That Yamaha will outperform the 30 you are looking at. With 2 guys and gear AND the correct prop it will plane up great. I know, I own one.
Look at the weight on the 2 motors fully equipped with a starting battery on the Tohatsu.
 
#19 ·
QuackerSmacker498 said:
You will burn up a small motor by constantly pushing heavy loads when theres not enough power to keep the boat on plane.
No, you won't "burn up" a motor, you'll just take forever getting to point B.
Today's small outboards are designed to run wide open for long periods of time. They're overbuilt and under-tuned.
 
#20 ·
QuackerSmacker498 said:
A 40 HP will barely cut it with two guys and an average hunting load with a dog.
Try again.

I have a 25hp on a 1652 and it will run high 20's with a full fishing load during the summer and low 20's with a blind,3 guys, and 12 dozen decoys in the winter. Its not setting any speed records, but I would call that much better than "barely cutting it"
 
#21 ·
I think I'm getting the 25 hp yamaha. Like T man said, I've heard of pretty good performance with a 25. Propping right has a lot to do with performance too, so with that motor and a few props I think I'll be ok . I can't really see passing up this deal on a new 25 yamaha with tank and prop. I don't do many long runs, so I don't need a speed boat.
 
#22 ·
Swanny said:
I think I'm getting the 25 hp yamaha. Like T man said, I've heard of pretty good performance with a 25. Propping right has a lot to do with performance too, so with that motor and a few props I think I'll be ok . I can't really see passing up this deal on a new 25 yamaha with tank and prop. I don't do many long runs, so I don't need a speed boat.
I would do the same thing. Enjoy you motor!
 
#23 ·
Swanny said:
I think I'm getting the 25 hp yamaha. Like T man said, I've heard of pretty good performance with a 25. Propping right has a lot to do with performance too, so with that motor and a few props I think I'll be ok . I can't really see passing up this deal on a new 25 yamaha with tank and prop. I don't do many long runs, so I don't need a speed boat.
Buy a tach so you can help prop your motor.
 
#25 ·
A number of years ago, I purchased a 16 ft Lund fishing boat and the salesman tried to talk me into at least a 35 if not a 40 HP motor for it. But I was too smart for him alright. I bought the 30 HP and have regretted it ever since. When you get loaded down, it just doesn't preform. This spring, I purchased my 16 ft duck boat and a number of people thought the 25 HP Yamaha would be enough. Lucky for me the dealer had 30 HP E-Techs on special. The cost was the same but I had to get the trim and tilt at an extra cost. Absolutly worth it. This 30 E-Tech really preforms and I haven't regretted the little extra I paid to get the bigger motor. Keep shopping and get the bigger motor!
 
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