[Rhodes22-list] Carb problems with NISSAN outboards?

[Bill Effros]

Lou,

The 4 strokes seem to have a lot of trouble starting when ethanol is 
added to the mix.  We hear this repeatedly from 4 stroke engine users.  
My 2 stroke Tohatsu will start right up on 10 year old peanut butter, if 
that's all that's available.

People also talk about not keeping their gas over the winter because it 
gets "stale".  I think the gas on my boat is now 3 years old.  I just 
don't use that much, although I use my engine every time I go out, and 
never have starting problems.

I think the problem with "stale" gas is that it is summer gas that has 
ethanol mixed in.  My guess is that 4-stroke engine users would be wise 
to store extra winter gas for their boats, without ethanol mixed in, for 
use throughout the following summer.  I haven't tested this theory, 
because I haven't had to.  But if I get a 4 stroke I will try to keep 
ethanol out of it.

The owners of all of the 4-stroke brands have complained at one time or 
another of starting problems.

Bill Effros



Lou Rosenberg wrote:

>  Peter, Bill
>  Sorry to go back to this post but I have found some word of mouth 
> info on the Nissan/ Tohatsu motors and want to confirm it with anyone 
> on this list's experience.
>  I heard from a sailor in my marina that the 2004 Nissan outboards DO 
> NOT  RUN WELL AT ALL with  ETHANOL  added to the fuel.  In NYC we have 
> ethanol added during the some parts of the season .
>  Does any one have any experiences with bad carbureators on the NISSAN 
> or Tohasu OB motors?
>
>
>
>> Peter,
>>
>> 6.5 Pitch Prop.
>>
>> I know mechanically what that means, but I never understand what it 
>> does.  What is the standard prop for motorboats?  Why?
>>
>> I want a prop that will allow me to go slow.  There is a lot of wind 
>> and current where I dock.  I want a prop that will allow me to slowly 
>> approach the dock, whether or not there is wind and current, without 
>> disengaging the prop, without stalling out, and without forcing me to 
>> coast in for the last 5 to 100 feet depending on wind and current 
>> conditions.
>>
>> I don't care if I have to rev higher to get the boat to hull speed.
>>
>> What prop do I want?
>>
>> Bill Effros
>>
>> Peter Thorn wrote:
>>
>>> Hi Lou,
>>>
>>> Congratulations on completing that ugly task.  May everything be 
>>> downhill
>>> for you from here on.  I bought Tohatsu 9.8 for Raven, but I really 
>>> wanted
>>> an 8hp.  At the time the distributor was all out of 8s, so I settled 
>>> because
>>> I needed it then.  The motor weighs 82 pounds same as the 8, the 
>>> lightest 4
>>> stroke on the market.  Added a 6.5 pitch prop, (for sailboats) and
>>> everything works quite well.  95% of the time, Raven motors at 1/16 
>>> throttle
>>> and 4-4.5 knots.  It's the best compromise for most quiet, least 
>>> vibration
>>> and best speed through water there.  Less than 1/2 gal per hour fuel
>>> consumption there too.  Any time I would like, I can twist up to 1/4
>>> throttle and hull speed.  Beyond that, just bigger and bigger 
>>> waves.  That
>>> 9.8 can really make some big ones!
>>>
>>> Just returned from Oriental to Ocracoke -- fantastic trip!  Waiting to
>>> exchange pictures with my fellow adventurers and write up my log 
>>> notes, then
>>> will post to the list.  Not sure I can do better than Chris G 
>>> though.   A
>>> real South Western Odysseus!
>>>
>>> PT
>>>
>>>
>>>
>>> ----- Original Message ----- From: "Lou Rosenberg" <lsr3 at MAIL.nyu.edu>
>>> To: "Richard Smith" <sailnut at worldnet.att.net>; "The Rhodes 22 mail 
>>> list"
>>> <rhodes22-list at rhodes22.org>
>>> Sent: Tuesday, October 25, 2005 4:16 PM
>>> Subject: Re: [Rhodes22-list] Lou's CB trunk almost done
>>>
>>>
>>>
>>>>  Thanks Richard,
>>>>  Ok  I will look into Eldridge, and I do plan to time my passage.
>>>>  So you are saying that an 8hp is plenty for the Rhodes in most
>>>>  
>>>
>>> situations?
>>>
>>>>  Lou
>>>>
>>>>  
>>>>
>>>>> < will a 8hp Tohatsu get me around Hells Gate where the Triboro
>>>>>    
>>>>>
>>>>>> Bridge meets the East River, with the tide coming in and the current
>>>>>> going south?>
>>>>>>      
>>>>>
>>>>> Five horsepower is plenty.  The speed of the current in this area can
>>>>>    
>>>>
>>> exceed
>>>
>>>>> the hull speed of the boat.  No reasonable amount of power will 
>>>>> overcome
>>>>> that limitation.  Get a copy of Eldridge and time your passages to 
>>>>> take
>>>>> advantage of the current not fight it.
>>>>>
>>>>> The heavy engine on the stern will worsen the hobby horsing 
>>>>> tendency and
>>>>> associated cavitation in rough conditions.  Exactly when you don't 
>>>>> need .
>>>>>
>>>>> Richard Smith
>>>>>
>>>>> __________________________________________________
>>>>> Use Rhodes22-list at rhodes22.org, Help? www.rhodes22.org/list
>>>>>    
>>>>
>>>> __________________________________________________
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>>>>  
>>>
>>>
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>>>
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>
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