[Rhodes22-list] Outboard Stalling

MichaelT mticse at gmail.com
Wed Sep 3 11:09:45 EDT 2008


Just checked my local Yamaha dealer and luckily they have all the parts
waiting for me:

1) 2 x Diaphram & Gasket
2) Fuel filter
3) Primer bulb

I will recheck the venting and replace the screw if needed.

I plan to replace all and hope for the best :)

Thanks Rummy/Mike !

Michael


R22RumRunner wrote:
> 
> Mike,
> Most fuel pumps that I've seen over the years have two or three screws  
> holding the cover in place. Replacing the diaphragm is easy. This is one
> you can  
> do. Most fuel pumps are mounted on the side of the engine casing because
> it 
> uses  the vacuum of the motor for power.
>  
> Rummy
>  
>  
> In a message dated 9/2/2008 4:47:41 P.M. Eastern Daylight Time,  
> mticse at gmail.com writes:
> 
> 
> Rummy,
> 
> Is this something I can do? My water pump also gave  out at the begining
> of
> the season. Got a parts diagram from a local dealer,  unbelievably a water
> pump kit was in stock, worked off the parts diagram  and replaced the the
> impeller myself. So I'm somewhat mechanical. Can you  give a brief
> instruction on what to do? Any possibly complications I might  experience? 
> 
> I was able to locate the diaphram (2 sited) you speak of  off the
> carbeurator
> diagram online (thanks to Mike). I suppose just order  the parts and off I
> go?
> 
> Thanks,
> Michael
> 
> 
> R22RumRunner  wrote:
>> 
>> You all are close to the problem, but it's so obvious  that it often is  
>> forgotten. After 20 years of use, the  diaphragm in the fuel pump has
>> quit 
>> working. 
>> The parts can  be had from your dealer. The kit comes with everything 
>> you 
>> need  to replace it: new diaphragm and gasket. All together it's a
>> fifteen 
>>  minute 
>> job.
>>  
>> Rummy
>>  
>>   
>> In a message dated 9/2/2008 3:05:36 P.M. Eastern Daylight Time,   
>> mweisner at ebsmed.com writes:
>> 
>> Michael  T,
>>  
>> You may wish to check out the Yamaha parts website  at:;
>>  http://www.yamaha-motor.com/outboard/parts/home.aspx
>> 
>> Put in  the  following:
>> Step 1: Product Line = Outboard
>> Step 2:  Year = (your motor's year)
>> Step 3: Model = (your  motor's model  or select one of the 8hp)
>> 
>> I tried a 1988 8hp long shaft   as a guess and found the attached image
>> of
>> the 
>> gas tank &  filter (#22)  (it is probably at the very bottom of the
>> email)
>>  
>> Mike
>> s/v Shanghai'd  Summer ('81)
>> Nissequogue  River, NY
>> 
>> From: "MichaelT"   <mticse at gmail.com>Sent: Tuesday, September 02, 2008
>> 1:29 
>>  PM
>>>
>>>
>>> OK...some basic questions  Mike:
>>>
>>>  Where's the fuel filter? Its not refrenced  in the Yamaha owner's 
>>> manual.
>>> Btw, I disconnected the  hose at the tank end and blew air into  the
>>> tank 
>>>  hose
>>> opening (w/ my mouth) and was/felt clear. I  wanted to  disassemble the
>>> top 
>>> pf
>>> the tank where the  hose  enters but did not see any screws.
>>>
>>> I  suppose if the fuel filt  fix doesn't work we'll move to option #2,  
>>> replace
>>> the  hose/primer bulb  assembly.
>>>
>>>  Michael
>>>
>>>
>>>  R22MikeW  wrote:
>>>>
>>>> Michael  T,
>>>>
>>>>  Open the tank filler cap and see if  it runs.  If it does, the tank
>>>> vent 
>  
>>>>  is
>>>> clogged.  If it doesn't, you need to check  the  fuel filter for an
>>>> obstruction or clog.  It may be  easier  to replace rather than check.
>>>> Lastly, you may  have a bad fuel pump  (the primer bulb may be actually
>>>>  filling the fuel bowl.)  I  have also seen problems in the primer 
>>>> bulb
>>>> where
>>>> the  one-way valve fails,  preventing fuel draw by the engine.  The 
>>>>  remedy
>>>> is
>>>> a ne primer bulb which includes  the  valves.  Let's hope that it is
>>>>  simply
>>>> a
>>>> clogged  tank vent.  Let me  know what you find.  If it is a reliable  
>>>>  engine
>>>> otherwise, this is too simple a problem to  deep  six it.
>>>>
>>>> Mike
>>>> s/v Shanghai'd  Summer  ('81)
>>>> Nissequogue River,  NY
>>>>
>>>> From:  "MichaelT"  <mticse at gmail.com>Sent: Tuesday, September 02, 2008   
>>>> 12:33
>>>>  PM
>>>>>
>>>>> I have a  Yamaha 8hp/2-Stroke  outboard that is continuing to stall
>>>>>  everytime  I
>>>>> use it. The fix that I've had to perform while the   outboard is
>>>>> running 
>>>>> is
>>>>>  by
>>>>>  continuing to squeeze/pump the primer bulb every  30 secs or so. 
>>>>> Somehow
>>>>>  the
>>>>> motor is not properly sucking in  the gas. All  hose clamps have been
>>>>> tightened w/ no obstruction  on  the gas tank side. Any ideas?
>>>>>
>>>>> The  motor is  20 years old. Hence, also considering getting  a
>>>>>  Yamaha/Tohatsu
>>>>> replacement. I  like the Yamaha because of the  shift lever being
>>>>>  located
>>>>> at
>>>>> the motor tiller   handle (and electric start, remote control 
>>>>>   capabilites),
>>>>> the Tohatsu for its simplicity. Looks like  2  strokes are outlawed,
>>>>> can't
>>>>>  find them  anywhere.
>>>>>
>>>>> Hope  everyone had a good summer  sailing. I had a wonderful time 
>>>>> thus
>>>>> far
>>>>> on
>>>>>  my  first year w/ my Rhodes and look forward to extending the season  
>>>>> as
>>>>> far
>>>>> as I   can!
>>>>>
>>>>> Best,
>>>>>   Michael
>>>>> s/v Silverside
>>>>> --  
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>>>>>
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>> -------------- next part --------------
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>> Name: Yamaha 1988 8hp Fuel Tank.gif
>>  Type: image/gif
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