Alumacraft Nav 165 with 70 Yamaha 4-stroke tiller

[fishinalot]

Just sold my Classic 165 Tiller that had a 50 4-stroke Yamaha. Great boat, but it could have had a bit more top end.

I'm looking at the Nav 1675 with a 70 4-stroke yamaha. Anybody have this rig, does it perform well and troll down good?

I would get 29 MPH with 2-guys in the 165 no livewell water. and troll down to 1.20MPH (backtrolling)when it was calm.

Thanks

[LegattoAD]

I've got the Navigator 165 Sport (full windshield), but I went with a 90hp 4 stroke Yammi instead of the 70hp it came with. Well worth the little extra $$, IMHO.

It is an awesome rig. I'm a basser, so I can't answer regarding the backtrolling, but at WOT and planed properly you'll top 40mph in calm conditions with 2 people and a full livewell.

The only issue I have with the rig is that the casting deck isn't big enough to suit my needs. But if you're going to be backtrolling, that shouldn't be much of an issue.

[grizrunner]

29 mph out of forward-control boat is a dog. Max out the motor and get a good trolling motor if you need to get less than 1.5mph. It hurts to spend the extra cash up front, but at least you won't contemplate upgrading, or even selling after the first year or two(if you make it that long), when you get sick of being under powered.

[fishinalot]

Max HP is 75, but the difference in weight is 130lbs between the 75 and the 70.

That's why I would rather to go with the 70 if I knew it performed well.

[LegattoAD]

Max HP is 75, but the difference in weight is 130lbs between the 75 and the 70.

That's why I would rather to go with the 70 if I knew it performed well.

Ah crud. I completely blanked out the word "tiller".

Anyway, by and large, I have heard few complaints about the Yammi's in general. No reason to think a 70 wouldn't perform to the same expectations. But Griz is right, you don't want to be wondering later on, if you go with a smaller motor, if you should have went closer to maxing it out.

[SkunkedAgain]

I've got an '08 Navigator 165 with an '09 Suzuki 90hp. The power is perfect but front trolling only gets down to about 2mph. If I want to go slower then I use the trolling motor. I haven't wished that I had a smaller main motor.

[solbes]

Top end that F70 will be slower but similar to the F75. Hole shot is where you will notice the biggest difference. F75 has a 1.596L displacement (shared block w/ the F90), the F70 shares the block with the F50 and F60 @ 0.996 L. Thats where your weight savings come in.

That is a really tough decision. The F70 should troll down slower and you would notice the weight savings in a significant way if you fish alone in the tiller. But loaded down with guys and/or gear, you will notice the far better hole shot of the F75.

[fishinalot]

That's what I was thinking also.

If I knew that the 70 could up and plane fine with 3-guys and the 34 gallon livewell filled, that's all that matters to me.

The faster hole shot with the 75 would be nice, but I would also like to know how the 70 performs out of the hole as well.

I did call Alumacraft, and they have no specs on this rig yet, that's why it would be nice to here from someone that has this rig or has been in this rig before.

I like the lower troll down speed and the lighter weight of the 70, really leaning towards the 70 if at all possible.

[SkunkedAgain]

My 90hp is very slow to get on plane with four people in the boat (similar to 3 people and full livewell), although I think that has a lot more to do with the stock prop than the motor itself. It is something to consider though, and you can switch to a different pitch if hole shot is more important to you.