Need engine recommendation (Yamaha)

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Any idea what the gph consumption of a 70 hp 2 stroke might be?

Unless I'm missing something, I'm not overly concerned about pairing a
2 and 4 stroke main and kicker, provided that the 2 stroke is oil
injected from a reservoir under the cowling. I can use one fuel
source, right?

Is the fuel consumption of a 2 stroke roughly comparable to a 4
stroke? I know there are differences between carburetion and efi--
just looking for a generalization. I prefer a light engine on this
light boat.

Thanks,

John
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On Mon, 14 Jul 2008 16:43:14 -0700 (PDT), JohnDeere
<john DeleteThis @retirementconsulting.com> wrote:

>Greetings,
>
>I have been lurking awhile but am new to this site. I'm thinking of
>upgrading my 17' Gregor (hull wt 925#) from a 40hp Nissan 2-stroke.
>Max mfg. hp rating is 70. The boats sports a 6hp 4-stroke kicker.
>Minimizing engine weight is a top consideration. Thinking of using a
>70hp Yamaha 2-stroke. Any other suggestions? Any problems/reservations
>concerning this particular Yamaha? With a 4-stroke kicker, there seems
>no reason not to enjoy the superior torque of a 2-stroke. What sort of
>price range might I expect for selling a low-hour, 40-hp 2002 Nissan?
>Your thoughts appreciated...

If you have a four stroke kicker, then consider a four stroke
70/60/50. That way you don't have to fuss with oil anymore and can
hook the two engines together with a T-fitting to run off the main gas
tank rather than carry two gas tanks. The new kicker on my Ranger
is a two stroke 40 hp ETEC which has an onboard oil tank - I wouldn't
have done it unless it had a seperate oil tank - two oil tanks would
have been a pain in the...

At least that's the way I would go.

As far as four strokes, don't know much about Nissan engines. Do know
about Suzuki engines and they are reliable (their service network can
be suspect though) - we have a contributor here who has bigger
Squeezukis and he likes them a lot. Honda is a possibility - the
Euros who run small boats love Hondas. And of course, in the opinion
of some, the finest four stroke on the market is Yamaha.

About the only thing I know about Nissan is getting them serviced if
something goes wrong - I don't think they have a very strong
dealer/service network. In that sense, Yamaha is probably your best
bet - they do have a strong dealer/service network.
 >> Stay informed about: Need engine recommendation (Yamaha) 

JohnDeere <john RemoveThis @retirementconsulting.com> wrote in news:6fb3f814-d407-4c05-
924f-4773c26151a5 RemoveThis @f63g2000hsf.googlegroups.com:

> Greetings,
>
> I have been lurking awhile but am new to this site. I'm thinking of
> upgrading my 17' Gregor (hull wt 925#) from a 40hp Nissan 2-stroke.
> Max mfg. hp rating is 70. The boats sports a 6hp 4-stroke kicker.
> Minimizing engine weight is a top consideration. Thinking of using a
> 70hp Yamaha 2-stroke. Any other suggestions? Any problems/reservations
> concerning this particular Yamaha? With a 4-stroke kicker, there seems
> no reason not to enjoy the superior torque of a 2-stroke. What sort of
> price range might I expect for selling a low-hour, 40-hp 2002 Nissan?
> Your thoughts appreciated...
> -John
>

Better just keep the 6hp kicker on it. Only Bill Gates will be able to
feed a 70hp 2 or 4 stroker within the next year and your 6hp kicker will
scream right by those guys rowing the runabouts with dead twin 275's on
their sterns. The electric trolling motor boys will all be jealous....

The river here has ALREADY gotten much quieter this summer. Even the
rednecks towing tubes of little kids trying to get the alligators to take
them are notably absent!
 >> Stay informed about: Need engine recommendation (Yamaha) 

Larry wrote:
> JohnDeere <john.DeleteThis@retirementconsulting.com> wrote in news:6fb3f814-d407-4c05-
> 924f-4773c26151a5.DeleteThis@f63g2000hsf.googlegroups.com:
>
>> Greetings,
>>
>> I have been lurking awhile but am new to this site. I'm thinking of
>> upgrading my 17' Gregor (hull wt 925#) from a 40hp Nissan 2-stroke.
>> Max mfg. hp rating is 70. The boats sports a 6hp 4-stroke kicker.
>> Minimizing engine weight is a top consideration. Thinking of using a
>> 70hp Yamaha 2-stroke. Any other suggestions? Any problems/reservations
>> concerning this particular Yamaha? With a 4-stroke kicker, there seems
>> no reason not to enjoy the superior torque of a 2-stroke. What sort of
>> price range might I expect for selling a low-hour, 40-hp 2002 Nissan?
>> Your thoughts appreciated...
>> -John
>>
>
> Better just keep the 6hp kicker on it. Only Bill Gates will be able to
> feed a 70hp 2 or 4 stroker within the next year and your 6hp kicker will
> scream right by those guys rowing the runabouts with dead twin 275's on
> their sterns. The electric trolling motor boys will all be jealous....
>
> The river here has ALREADY gotten much quieter this summer. Even the
> rednecks towing tubes of little kids trying to get the alligators to take
> them are notably absent!
>


Actually, I'm pleased with the fuel burn on my Yamaha 150. At any of the
speeds I like to run, I'm not overly enriching the Cheney Administration
or its bloodsucking supporters.

I'm in favor of towing tubes of little kids as alligator bait, by the way.
 >> Stay informed about: Need engine recommendation (Yamaha) 

On Jul 14, 11:00 pm, hk <payer33....RemoveThis@mypacks.net> wrote:
> Larry wrote:
> > JohnDeere <j....RemoveThis@retirementconsulting.com> wrote in news:6fb3f814-d407-4c05-
> > 924f-4773c2615....RemoveThis@f63g2000hsf.googlegroups.com:
>
> >> Greetings,
>
> >> I have been lurking awhile but am new to this site. I'm thinking of
> >> upgrading my 17' Gregor (hull wt 925#) from a 40hp Nissan 2-stroke.
> >> Max mfg. hp rating is 70. The boats sports a 6hp 4-stroke kicker.
> >> Minimizing engine weight is a top consideration. Thinking of using a
> >> 70hp Yamaha 2-stroke. Any other suggestions? Any problems/reservations
> >> concerning this particular Yamaha? With a 4-stroke kicker, there seems
> >> no reason not to enjoy the superior torque of a 2-stroke. What sort of
> >> price range might I expect for selling a low-hour, 40-hp 2002 Nissan?
> >> Your thoughts appreciated...
> >> -John
>
> > Better just keep the 6hp kicker on it.  Only Bill Gates will be able to
> > feed a 70hp 2 or 4 stroker within the next year and your 6hp kicker will
> > scream right by those guys rowing the runabouts with dead twin 275's on
> > their sterns.  The electric trolling motor boys will all be jealous.....
>
> > The river here has ALREADY gotten much quieter this summer.  Even the
> > rednecks towing tubes of little kids trying to get the alligators to take
> > them are notably absent!
>
> Actually, I'm pleased with the fuel burn on my Yamaha 150. At any of the
> speeds I like to run, I'm not overly enriching the Cheney Administration
> or its bloodsucking supporters.
>
> I'm in favor of towing tubes of little kids as alligator bait, by the way..- Hide quoted text -
>
> - Show quoted text -

That's SO refined and cultured. Only a narcississt on your level would
want to use children as alligator bait.
 >> Stay informed about: Need engine recommendation (Yamaha) 

"hk" <payer33859 RemoveThis @mypacks.net> wrote in message
news:W8idnWUADuEtj-HVnZ2dnUVZ_q3inZ2d@comcast.com...
> Larry wrote:
>> JohnDeere <john RemoveThis @retirementconsulting.com> wrote in
>> news:6fb3f814-d407-4c05-
>> 924f-4773c26151a5 RemoveThis @f63g2000hsf.googlegroups.com:
>>
>>> Greetings,
>>>
>>> I have been lurking awhile but am new to this site. I'm thinking of
>>> upgrading my 17' Gregor (hull wt 925#) from a 40hp Nissan 2-stroke.
>>> Max mfg. hp rating is 70. The boats sports a 6hp 4-stroke kicker.
>>> Minimizing engine weight is a top consideration. Thinking of using a
>>> 70hp Yamaha 2-stroke. Any other suggestions? Any problems/reservations
>>> concerning this particular Yamaha? With a 4-stroke kicker, there seems
>>> no reason not to enjoy the superior torque of a 2-stroke. What sort of
>>> price range might I expect for selling a low-hour, 40-hp 2002 Nissan?
>>> Your thoughts appreciated...
>>> -John
>>>
>>
>> Better just keep the 6hp kicker on it. Only Bill Gates will be able to
>> feed a 70hp 2 or 4 stroker within the next year and your 6hp kicker will
>> scream right by those guys rowing the runabouts with dead twin 275's on
>> their sterns. The electric trolling motor boys will all be jealous....
>>
>> The river here has ALREADY gotten much quieter this summer. Even the
>> rednecks towing tubes of little kids trying to get the alligators to take
>> them are notably absent!
>>
>
>
> Actually, I'm pleased with the fuel burn on my Yamaha 150. At any of the
> speeds I like to run, I'm not overly enriching the Cheney Administration
> or its bloodsucking supporters.
>
> I'm in favor of towing tubes of little kids as alligator bait, by the way.
Well bring your kids on down to lake Jessup near Orlando. There are
reportedly 15,000 Gators in that pond.
 >> Stay informed about: Need engine recommendation (Yamaha) 

LoogyPicker.TakeThisOut@gmail.com wrote:
> On Jul 14, 11:00 pm, hk <payer33....TakeThisOut@mypacks.net> wrote:
>> Larry wrote:
>>> JohnDeere <j....TakeThisOut@retirementconsulting.com> wrote in news:6fb3f814-d407-4c05-
>>> 924f-4773c2615....TakeThisOut@f63g2000hsf.googlegroups.com:
>>>> Greetings,
>>>> I have been lurking awhile but am new to this site. I'm thinking of
>>>> upgrading my 17' Gregor (hull wt 925#) from a 40hp Nissan 2-stroke.
>>>> Max mfg. hp rating is 70. The boats sports a 6hp 4-stroke kicker.
>>>> Minimizing engine weight is a top consideration. Thinking of using a
>>>> 70hp Yamaha 2-stroke. Any other suggestions? Any problems/reservations
>>>> concerning this particular Yamaha? With a 4-stroke kicker, there seems
>>>> no reason not to enjoy the superior torque of a 2-stroke. What sort of
>>>> price range might I expect for selling a low-hour, 40-hp 2002 Nissan?
>>>> Your thoughts appreciated...
>>>> -John
>>> Better just keep the 6hp kicker on it. Only Bill Gates will be able to
>>> feed a 70hp 2 or 4 stroker within the next year and your 6hp kicker will
>>> scream right by those guys rowing the runabouts with dead twin 275's on
>>> their sterns. The electric trolling motor boys will all be jealous....
>>> The river here has ALREADY gotten much quieter this summer. Even the
>>> rednecks towing tubes of little kids trying to get the alligators to take
>>> them are notably absent!
>> Actually, I'm pleased with the fuel burn on my Yamaha 150. At any of the
>> speeds I like to run, I'm not overly enriching the Cheney Administration
>> or its bloodsucking supporters.
>>
>> I'm in favor of towing tubes of little kids as alligator bait, by the way.- Hide quoted text -
>>
>> - Show quoted text -
>
> That's SO refined and cultured. Only a narcississt on your level would
> want to use children as alligator bait.



From Loogy:

" I'm an idiot? Please show us where I said I'd never post here again.
This is the place where you make up another of your lies, low life."

"I'm out."
Loogy 7-10-2008
 >> Stay informed about: Need engine recommendation (Yamaha) 

JohnDeere wrote:
> Is the fuel consumption of a 2 stroke roughly comparable to a 4
> stroke ?
Four strokes consume less than 2 strokes. How much less depends on what
you compare, I'd guess around 30%. They are also quieter, cleaner and
somewhat heavier.

Markus
 >> Stay informed about: Need engine recommendation (Yamaha) 

JohnDeere <john RemoveThis @retirementconsulting.com> wrote in news:200979ad-5da0-4f16-
a1c6-b2c6a2cac23e RemoveThis @e53g2000hsa.googlegroups.com:

> Is the fuel consumption of a 2 stroke roughly comparable to a 4
> stroke? I know there are differences between carburetion and efi--
> just looking for a generalization. I prefer a light engine on this
> light boat.
>
>

The 2-stroke uses significantly MORE fuel than the 4. It's why cars have
4-stroke engines, exclusively, even though a 4-stroke is considerably more
complex with all its valve trains and timing gears.

But, in a boat situation, nothing beats a 2-stroke if you must take it off
the boat and carry it around or store it.....not the monster 2-strokes that
guzzle gas something awful, the little 2-strokes on a dingy for the
sailboat or little fishing boat. 4-strokes fall on their ass in this
application because you have to make sure you don't just lay it or carry it
in any position where the oil in the sump can run out or run back up
something important like a vent and flood the ending with lube oil. A
premix 2-stroke is also far lighter as it's about the simplest engine ever
built with no valve trains, oil pumps, and other heavy nonsense.

If it has transom clamps, buy a two stroke. If it's permanently mounted,
get the 4 and save save save!
 >> Stay informed about: Need engine recommendation (Yamaha) 

On Tue, 15 Jul 2008 15:27:44 +0000, Larry <noone DeleteThis @home.com> wrote:

>4-strokes fall on their ass in this
>application because you have to make sure you don't just lay it or carry it
>in any position where the oil in the sump can run out or run back up
>something important like a vent and flood the ending with lube oil.

We have two Evinrudes with the fuel tank mounted on them. You can
close two valves, one for gas, one for the vent. As it happens, they
are never tipped much, storage is upright in a beach box.

Casady
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