R22 Discussion Group

I hate mud daubers. They will fill any tiny little crevice they can find.  
Fortunately they don't sting unless you provoke them. Only the females build 
the  nests and provision them with their eggs and spiders for the young to 
feed on.  I've found that they don't like the loud sound from my stereo. 
That's probably  why I see so few. :)
I have a 9.8 Tohatsu four stroke I could use temporarily, but it weights  
twice as much as the 2 stroke and I'm getting to old to man handle a 100 
pound  motor around the transom of a boat. I guess I'll just use the 2.5 Tohatsu 
or an  electric trolling motor until I finish my repairs.

Rummy

In a message dated 5/9/2012 9:30:25 A.M. Eastern Daylight Time,  
rlowe at vt.edu writes:

Rummy,
That's pretty good record.  Note that your repairs  had nothing to do with 
4 vs. 2 stroke.  You just happen to have a heck of  a good motor.

I finished repairing my 2003 Yamaha 4 stoke motor last  week.  It came with 
my new(er) boat but had been sitting on the hard for  three years.  I 
rebuilt the carburetor and water pump as a precautionary  measures and both 
needed it.  The carb was all gunked up and a good  cleaning and rebuild fixed it 
and the water pump had sand(!) in it and a  rebuild was needed.  The vane 
had started to deteriorate at this  point.  About $75 in parts at this point.  
I believe I reported that  my lower unit leaked oil when filled and was 
filled with the same milky stuff  you described when I drained it.  Over my pay 
grade as this point so I  took it to a mechanic would said it appeared the 
seal around the shift lever  had gotten dislodged, possibly by having water 
freeze in the unit.   Either that or mechanic malfunction (me).  I'm blaming 
in on the freezing  water.  Anyway, he charged me $75 for his trouble.  

What was  really surprising was to find the prop was all bent up and had to 
be  replaced.  I guess the PO had run aground somewhere, which probably  
explains the sand in the water pump.  Probably sucked it in when he hit  sand. 
 Another $80 for the prop.  

So I've got it all  together and started it in my driveway using earmuffs 
to provide cooling  water.  Now water is just spitting out the pee hole 
instead of a good  steady stream.  I'm wondering about the water pump job at the 
moment and  if I need to take it apart and revisit it.  Instead, I pull off 
that  water discharge line from the fitting in the case and it runs fine.  
This  is also the first time I realize the water pump is also the fuel pump.  
 Interesting.  I guess there are two water pumps?  The one that is on  the 
lower unit and one part of the fuel pump?  Anyway, I find a pipe  cleaner 
and clean out the pee hole.  Damn mud dobbers have been at  work.  Now the 
motor is peeing as it should.  I declare motor fit  for service!

So I'm out about $230 at this point and have a well  running motor.  

I think my point is anyone with the right skills  and tools and a very good 
parts diagram or service manual can do basic  maintenance and repairs on 
their motors.  But I'm like you, I'm leaving  the lower units to the experts.  
- rob

S/V (no  name)

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Motor report.