For years now, I have been fighting the problems keeping my 4
stroke Ymmaha T9.9 running. Even with adding preservatives to
the gas tank, replacing the fuel delivery system, and adding
a 19 micron filter inline with the gas feed, the tiny jets on
this engine occasionally block up. Nothing helps short of tearing
down the carb to clean them. Most of the modern gas engines have
these small jets that continually block up. Gasahol is mostly to
blame either because it dissolves any loose dirt in your system
or breaks down into something that eventually blocks the carbs.

Now we have an increase of alcohol being pushed by our farmers
to 15 per cent instead of the current 10 percent. This is sure
to make the problem worse. The engine manufacturer's have not
come up with a really good solution. Just band-aid fixes like
adding inline filters and preservatives to the gas. This is
taking all the fun out of boating and can even be a safety issue.

Sherwin

The key is recognizing the 90 day life of this fuel. After 90 days it starts to gel. You must empty the tank, flush the fuel line
and drain the carb before letting it stand or suffer the consequences. It's a pain, but it only takes a few minutes.
Steve

"sherwin dubren" wrote in message ...
For years now, I have been fighting the problems keeping my 4
stroke Ymmaha T9.9 running. Even with adding preservatives to
the gas tank, replacing the fuel delivery system, and adding
a 19 micron filter inline with the gas feed, the tiny jets on
this engine occasionally block up. Nothing helps short of tearing
down the carb to clean them. Most of the modern gas engines have
these small jets that continually block up. Gasahol is mostly to
blame either because it dissolves any loose dirt in your system
or breaks down into something that eventually blocks the carbs.

Now we have an increase of alcohol being pushed by our farmers
to 15 per cent instead of the current 10 percent. This is sure
to make the problem worse. The engine manufacturer's have not
come up with a really good solution. Just band-aid fixes like
adding inline filters and preservatives to the gas. This is
taking all the fun out of boating and can even be a safety issue.

Sherwin

sherwin dubren wrote:
For years now, I have been fighting the problems keeping my 4
stroke Ymmaha T9.9 running. Even with adding preservatives to
the gas tank, replacing the fuel delivery system, and adding
a 19 micron filter inline with the gas feed, the tiny jets on
this engine occasionally block up. Nothing helps short of tearing
down the carb to clean them. Most of the modern gas engines have
these small jets that continually block up. Gasahol is mostly to
blame either because it dissolves any loose dirt in your system
or breaks down into something that eventually blocks the carbs.

Now we have an increase of alcohol being pushed by our farmers
to 15 per cent instead of the current 10 percent. This is sure
to make the problem worse. The engine manufacturer's have not
come up with a really good solution. Just band-aid fixes like
adding inline filters and preservatives to the gas. This is
taking all the fun out of boating and can even be a safety issue.

Sherwin

My neighbor, the fuel polisher, is getting more and more calls to
suck out old gasohol and dispose of it. Makin money!
BTW, the problem in the 4 stroke little engines is an epa deal. There
is a hidden adjustment on most.
On the Hondas, there is an adjuster on the side of the carb that is
limited by a little cap. Use a little torch to heat the solder holding
the cap on. With the cap off, a little extra turn and the engine will
run great.
The Yam probably has a cover over the adjuster as I had on a little
road bike.
G

On Tue, 27 Jul 2010 02:13:41 -0500, sherwin dubren
wrote:

For years now, I have been fighting the problems keeping my 4
stroke Ymmaha T9.9 running. Even with adding preservatives to
the gas tank, replacing the fuel delivery system, and adding


a 19 micron filter inline with the gas feed, the tiny jets on
this engine occasionally block up.

**** goes through the filter and plugs things. Getting a finer grain
filter is a no brainer.

Nothing helps short of tearin down the carb to clean them. Most of the modern gas engines have
these small jets that continually block up.

If you quit putting known dirty gas in your equipment that will help.

Gasahol is mostly to
blame either because it dissolves any loose dirt in your system
or breaks down into something that eventually blocks the carbs.

Now we have an increase of alcohol being pushed by our farmers
to 15 per cent instead of the current 10 percent. This is sure
to make the problem worse. The engine manufacturer's have not
come up with a really good solution. Just band-aid fixes like
adding inline filters and preservatives to the gas. This is
taking all the fun out of boating and can even be a safety issue.


It is not all that difficult to remove alcohol from gasoline. Just add
maybe 20% waterand shake well. Then pour off the upper gasoline layer
and discard the lower
water layer that has all the alcohol in it. Get the local fuel dealer
to drop off a 300 gallon barrel. You can add the water and stir with
compressed air, then drain the water.

Casady

In article ,
says...
On Tue, 27 Jul 2010 02:13:41 -0500, sherwin dubren
wrote:

For years now, I have been fighting the problems keeping my 4
stroke Ymmaha T9.9 running. Even with adding preservatives to
the gas tank, replacing the fuel delivery system, and adding


a 19 micron filter inline with the gas feed, the tiny jets on
this engine occasionally block up.

**** goes through the filter and plugs things. Getting a finer grain
filter is a no brainer.

Nothing helps short of tearin down the carb to clean them. Most of the modern gas engines have
these small jets that continually block up.

If you quit putting known dirty gas in your equipment that will help.

Gasahol is mostly to
blame either because it dissolves any loose dirt in your system
or breaks down into something that eventually blocks the carbs.

Now we have an increase of alcohol being pushed by our farmers
to 15 per cent instead of the current 10 percent. This is sure
to make the problem worse. The engine manufacturer's have not
come up with a really good solution. Just band-aid fixes like
adding inline filters and preservatives to the gas. This is
taking all the fun out of boating and can even be a safety issue.


It is not all that difficult to remove alcohol from gasoline. Just add
maybe 20% waterand shake well. Then pour off the upper gasoline layer
and discard the lower
water layer that has all the alcohol in it. Get the local fuel dealer
to drop off a 300 gallon barrel. You can add the water and stir with
compressed air, then drain the water.

Will that change the effective octane rating of the remaining gasoline?


Mark Borgerson

On Tue, 27 Jul 2010 09:27:03 -0700, Mark Borgerson
wrote:

It is not all that difficult to remove alcohol from gasoline. Just add
maybe 20% waterand shake well. Then pour off the upper gasoline layer
and discard the lower
water layer that has all the alcohol in it. Get the local fuel dealer
to drop off a 300 gallon barrel. You can add the water and stir with
compressed air, then drain the water.

Will that change the effective octane rating of the remaining gasoline?
Ethanol, and the methanol my car uses, propane, acetone, toluene they
all rate 100 octane. If you take it out it will lower the octane three
points or so to the level you have with the upblended gas sold as
such.

Casady

In article ,
says...
On Tue, 27 Jul 2010 09:27:03 -0700, Mark Borgerson
wrote:

It is not all that difficult to remove alcohol from gasoline. Just add
maybe 20% waterand shake well. Then pour off the upper gasoline layer
and discard the lower
water layer that has all the alcohol in it. Get the local fuel dealer
to drop off a 300 gallon barrel. You can add the water and stir with
compressed air, then drain the water.

Will that change the effective octane rating of the remaining gasoline?
Ethanol, and the methanol my car uses, propane, acetone, toluene they
all rate 100 octane. If you take it out it will lower the octane three
points or so to the level you have with the upblended gas sold as
such.

I think modern engine controllers will cope with that without problems.
With knock detection and flexible spark timing it shouldn't be a
problem. An older engine that needs premium fuel might have
some problems.


Mark Borgerson

In article ,
sherwin dubren wrote:

and adding
a 19 micron filter inline with the gas feed

Geez Louise, what are you trying to filter out, Wood chips, or sand?

Get yourself a Racor Water Separator/Filter that has a, not larger than
2 Micron spec and be done with the whole problem.

sherwin dubren wrote:
For years now, I have been fighting the problems keeping my 4
stroke Ymmaha T9.9 running. Even with adding preservatives to
the gas tank, replacing the fuel delivery system, and adding
a 19 micron filter inline with the gas feed, the tiny jets on
this engine occasionally block up. Nothing helps short of tearing
down the carb to clean them. Most of the modern gas engines have
these small jets that continually block up. Gasahol is mostly to
blame either because it dissolves any loose dirt in your system
or breaks down into something that eventually blocks the carbs.

Now we have an increase of alcohol being pushed by our farmers
to 15 per cent instead of the current 10 percent. This is sure
to make the problem worse. The engine manufacturer's have not
come up with a really good solution. Just band-aid fixes like
adding inline filters and preservatives to the gas. This is
taking all the fun out of boating and can even be a safety issue.

Sherwin
I have fuel infection but that is also susceptible to clogs and
failure. I have been using this in my boat and ATV for years will good
results:

http://www.seafoamsales.com/motor-treatment.html

It's a lot cheaper than Yamaha's version of the same product.

"Larry" wrote in message
...
sherwin dubren wrote:
For years now, I have been fighting the problems keeping my 4
stroke Ymmaha T9.9 running. Even with adding preservatives to
the gas tank, replacing the fuel delivery system, and adding
a 19 micron filter inline with the gas feed, the tiny jets on
this engine occasionally block up. Nothing helps short of tearing
down the carb to clean them. Most of the modern gas engines have
these small jets that continually block up. Gasahol is mostly to
blame either because it dissolves any loose dirt in your system
or breaks down into something that eventually blocks the carbs.

Now we have an increase of alcohol being pushed by our farmers
to 15 per cent instead of the current 10 percent. This is sure
to make the problem worse. The engine manufacturer's have not
come up with a really good solution. Just band-aid fixes like
adding inline filters and preservatives to the gas. This is
taking all the fun out of boating and can even be a safety issue.

Sherwin
I have fuel infection but that is also susceptible to clogs and failure.
I have been using this in my boat and ATV for years will good results:

http://www.seafoamsales.com/motor-treatment.html

It's a lot cheaper than Yamaha's version of the same product.


That stuff has a good reputation but After putting two cans of the stuff
through the fuel system on my bike I still had to have the carbs cleaned.
--
Me