Yamaha 3 compared to Yamaha 2

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Donk107
Donk107
TAS
2446 posts
TAS, 2446 posts
21 Mar 2016 10:14pm
Hi all

Wondering if anyone has ever compared the performance of the 3hp against the 2hp on a 8 foot tender with 2 or 3 persons on board

Regards Don
Jode5
Jode5
QLD
853 posts
QLD, 853 posts
21 Mar 2016 9:34pm
I purchased my Yamaha 3 when they first came out over 30 years ago and they are still the same motor, just a slightly darker grey. It has never missed a beat and I still use it on my dingy. I asked my Yamaha dealer mate if it was still under warranty and he said because I never got the first service it's no longer covered. The only repairs in 30 years is a pump impeller and a fresh coat of paint. Still the original spark plug. I originally purchased the 3hp because it had a neutral position for my kids when they were little and learning to drive. 30 years on and I am now teaching my grand kids to drive with the same motor.
Donk107
Donk107
TAS
2446 posts
TAS, 2446 posts
21 Mar 2016 11:01pm
Hi Jode

Thanks for the information

I have a 4 year old 3 but i am considering getting a 2 instead because it is approx half the weight

I normally throw the 3 and a pair of wooden oars into my vehicle and drive 100 meters from home to where my tender is but with the lighter weight of the 2 i would probably walk instead of driving

I have a 300 meter motor out to the mooring and have 1 or 2 persons (occasionally 3 if it is calm) in the tender and wonder how the 2 would compare to the 3 in pushing the tender along

Regards Don
Auscruisers
Auscruisers
65 posts
65 posts
21 Mar 2016 9:18pm
We have had a Yamaha 3hp for several yeras now. As Jode5 says, the neutral is a bonus. We had had a 2hp Yamaha in the past and it was also a great motor. The 3hp is just so much more versatile.
It might not sound much but there is a 50% power difference and it's quite noticible.
Ramona
Ramona
NSW
7757 posts
NSW, 7757 posts
22 Mar 2016 8:05am
Donk107 said..
Hi Jode

Thanks for the information

I have a 4 year old 3 but i am considering getting a 2 instead because it is approx half the weight

I normally throw the 3 and a pair of wooden oars into my vehicle and drive 100 meters from home to where my tender is but with the lighter weight of the 2 i would probably walk instead of driving

I have a 300 meter motor out to the mooring and have 1 or 2 persons (occasionally 3 if it is calm) in the tender and wonder how the 2 would compare to the 3 in pushing the tender along

Regards Don


I would suggest having a look at the 3 hp electric outboards with the lithium battery in the top. Water cooled motors mounted in the head.
Bushdog
Bushdog
SA
313 posts
SA, 313 posts
22 Mar 2016 8:55am
My Yamaha 3hp is great, tiller throttle, reliable and quieter than most other brands. The Yamaha 3 is also about 3kg (25%) heavier than the Mercury/Tohatsu 3.3 range with motor throttle, but all have safety and convenience of neutral gear. Compared to a 3hp, having the 2hp on a dinghy or inflatable is like powering your tender with a bamix. But, it'll still get you out to the yacht, and if it's choppy, the tender's bobbing up and down, and you're trying to get the OBM up onto the pushpit bracket, the 2hp will go easy, while the 3hp is more likely to spear through the bottom of your dinghy or go for a dive. Fuelled up, the 3hp is almost 6kg (40%) heavier than the 2hp.

My Chiropractor recommends the 2hp, but he doesn't sail...
Auscruisers
Auscruisers
65 posts
65 posts
22 Mar 2016 11:58am
I have to agree with bushdog about the weight of the 3hp. It is certainly a bit heavier than the 2hp.

In my case the outboard usually stays on the dinghy when it's hoisted onto the davits but on the occasions where I remove it I use my mainsail cuningham and a bridle to hoist it onto the brackdt on my pushpit.

I guess it comes down to what we want and how we want to use it. I was always happy with my 2hp until I got the 3 hp. Still not unhapp y with the 2hp, it's just that the 3 hp does it a bit better and I am OK with the weight difference.
jbshack
jbshack
WA
6913 posts
WA, 6913 posts
22 Mar 2016 2:19pm
The 2 hp Yamaha is about 12 kilos (This is all from memory, i haven't sold Yamahas new for around 12 years) and the 3hp is 16.5 kilos.

The 3 however has a twist grip throttle and as said a gear box with forward and neutral.

Also the prop on the 3 hp is a splined bush instead of the 2hp runs a shear pin.

The 3 has a 2 clip cowling and it pops of for easy cleaning.

The 3 hp Yamaha rocks and is rather hard to beat. Hence why so many people use them..

I find the extra weight is a bit offset by the handles that make it easier to lift and carry, not as oar quad as the 2hp..

Hope that helps.

Quick edit: Also both these engines are designed to run on 100:1 fuel to oil ratio. So very smooth and quiet considering.
Ramona
Ramona
NSW
7757 posts
NSW, 7757 posts
22 Mar 2016 6:51pm
Bushdog said..
My Yamaha 3hp is great, tiller throttle, reliable and quieter than most other brands. The Yamaha 3 is also about 3kg (25%) heavier than the Mercury/Tohatsu 3.3 range with motor throttle, but all have safety and convenience of neutral gear. Compared to a 3hp, having the 2hp on a dinghy or inflatable is like powering your tender with a bamix. But, it'll still get you out to the yacht, and if it's choppy, the tender's bobbing up and down, and you're trying to get the OBM up onto the pushpit bracket, the 2hp will go easy, while the 3hp is more likely to spear through the bottom of your dinghy or go for a dive. Fuelled up, the 3hp is almost 6kg (40%) heavier than the 2hp.

My Chiropractor recommends the 2hp, but he doesn't sail...


Have a think about making a Korts nozzle for your outboard. I have a 2.5 Tohatsu uprated to 3.5 on my catamaran tender. The korts nozzle is just a section of plastic pipe with a couple of layups of epoxy and glass. Doubles the thrust but more importantly gives positive steering.
Donk107
Donk107
TAS
2446 posts
TAS, 2446 posts
22 Mar 2016 9:24pm
Hi all

Thanks for your thoughts

If i understand correctly the 2 doesn't have a neutral position so it is always driving the prop when running and also the throttle is mounted on the engine not on the tiller

Is this correct

Regards Don
jbshack
jbshack
WA
6913 posts
WA, 6913 posts
22 Mar 2016 7:30pm
Donk107 said..
Hi all

Thanks for your thoughts

If i understand correctly the 2 doesn't have a neutral position so it is always driving the prop when running and also the throttle is mounted on the engine not on the tiller

Is this correct

Regards Don


Yep 100%
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