[Rhodes22-list] Is there anyone out there who can help mewith my Yahmaha 9.9 4 stroke

[Daniel Johnson]

Alice,

I'll be interested to hear what responses you get.  You have been way more
agressive than I have with a similar problem.  We got ours from Stan in
April.  Engine seemed to run fine.  However, I note that on mine, the
throttle will only go perhaps to 1/4 throttle in neutral - just won't go any
higher, and hasn't since I got it - I thought that was normal.  Anyway - as
you did, I added about 1.5 gallons of gas to perhaps the 2 left in the tank;
put in the additive recommended for gas with ethanol.  It ran fine for one
trip, now won't start at all.  The starter runs, but engine never cranks.

I'm having the marina look at it this week as they have the same motor on
one of thier work boats they use for pushing boats around the marina.

While I don't think it is at all related, should I be flushing the motor
with freshwater somehow after each use.  I know it isn't plugged - water
still runs out the port fine when the engine runs.  But I have seen the
"earmuff" brackets at West Marine and Boaters World that supposedly will
permit this flush.


On 8/11/08, ALICE WEISZ <amicw5 at msn.com> wrote:
>
> Following it's vacation (rehab) in NC with Stan, my Yamaha 4 stroke 9.9 hp
> with tiller control was purring...
>
> Last weekend, after 3 weeks of not using it, I decided to get some gas (had
> 1 gallon left in the 5 gal tank).  Got the mid-grade at Shell and added the
> "blue" West Marine additive (said to add about 1 oz, I did about 1.5
> oz).  Then I tried to start the motor.  After multiple attempts, I finally
> got to the point where it would continue to run in Neutral ONLY at max
> speed.  As I tried to lower the speed, it would Konk out.
>
> Needless to say... I was a bit 'DISMAYED'.  I took off the cover and
> sprayed the carburetor opening with some stuff I've used I've used in the
> past (cleaner).. to no avail.
>
> I next opened the gas tank and took out the filter.... cleaned that
> (thinking that some 'gunk' - industry term- had settled on the bottom and
> was now dislodged.
>
> Again to no avail.  NEUTRAL at high speed runs - but not smoothly.
> Obviously if I can't bring it down, I can't switch to another gear.
>
> SO.... this weekend, I "gave back" the gas to the Shell man (you should
> have seen his face!!) and got 2 gallons of 87 octane (as indicated in owners
> manual) at a different gas station.  No additive... same results.   Put in a
> different additive...same.   Finally this last additive (Sea Foam) said to
> tune-up small motors (2 and 4 stroke) just put additive straight into gas
> line (with engine running) and let sit for 5 minutes... then run.   NO
> change.  NEXT I started to minimally adjust the idle screw... no help.
>
> I'm at my wits end and ready to throw the motor overboard... except that I
> need it to get into and out of the marina.
>
> IDEAS???     SOLUTIONS????
>
> Know a good outboard mechanic in the Kent Island area????
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