Yamaha 225 sws / year 2000
 

I'm having fuel problems. If I leave the engine at idol for 15
minutes when I atempt to leave the dock she will stall. Once I get
going I cant just smash the throttle she will stall. I installed a new
fuel line and changed the plugs and im still having the same problem.
Can anyone help?

Yamaha 225 sws / year 2000
 

On 18 Aug 2006 13:36:23 -0700, "shawn" wrote:

I'm having fuel problems. If I leave the engine at idol for 15
minutes when I atempt to leave the dock she will stall. Once I get
going I cant just smash the throttle she will stall. I installed a new
fuel line and changed the plugs and im still having the same problem.
Can anyone help?



Most problems like that are fuel related and the electric fuel pump pressure
should be checked while duplicating the problem. With today's gas deposits
form very quickly and can plug or restrict screens and filters very easily.

Run the boat in an identical manner with an EFI fuel pressure gauge hooked
up to the test fitting and watch for pressure fluctuations when you
accelerate. If they are erratic or drop quickly, clean out the vapor
separator tank (VST) and replace the high pressure fuel pump screen inside.

Bill Grannis
service manager

Yamaha 225 sws / year 2000
 

Diaphragm failing in one of the fuel filters (there are 3 of them in that
engine). Part is about $60-80. I'd change all three at the same time.


"Shortwave Sportfishing" wrote in message
...
On 18 Aug 2006 13:36:23 -0700, "shawn" wrote:

I'm having fuel problems. If I leave the engine at idol for 15
minutes when I atempt to leave the dock she will stall. Once I get
going I cant just smash the throttle she will stall. I installed a new
fuel line and changed the plugs and im still having the same problem.
Can anyone help?

Fuel filter....

Yamaha 225 sws / year 2000
 

"Billgran" wrote in message
...


On 18 Aug 2006 13:36:23 -0700, "shawn" wrote:

I'm having fuel problems. If I leave the engine at idol for 15
minutes when I atempt to leave the dock she will stall. Once I get
going I cant just smash the throttle she will stall. I installed a new
fuel line and changed the plugs and im still having the same problem.
Can anyone help?



Most problems like that are fuel related and the electric fuel pump
pressure should be checked while duplicating the problem. With today's gas
deposits form very quickly and can plug or restrict screens and filters
very easily.

Run the boat in an identical manner with an EFI fuel pressure gauge hooked
up to the test fitting and watch for pressure fluctuations when you
accelerate. If they are erratic or drop quickly, clean out the vapor
separator tank (VST) and replace the high pressure fuel pump screen
inside.

Bill Grannis
service manager

Bill,
I had almost the exact same problem on an '01 250 OX66. Turned out to be a
bad fuel diapragm on one of the fuel pumps.

Yamaha 225 sws / year 2000
 

Thanks ill give that a try.

Billgran wrote:
On 18 Aug 2006 13:36:23 -0700, "shawn" wrote:

I'm having fuel problems. If I leave the engine at idol for 15
minutes when I atempt to leave the dock she will stall. Once I get
going I cant just smash the throttle she will stall. I installed a new
fuel line and changed the plugs and im still having the same problem.
Can anyone help?



Most problems like that are fuel related and the electric fuel pump pressure
should be checked while duplicating the problem. With today's gas deposits
form very quickly and can plug or restrict screens and filters very easily.

Run the boat in an identical manner with an EFI fuel pressure gauge hooked
up to the test fitting and watch for pressure fluctuations when you
accelerate. If they are erratic or drop quickly, clean out the vapor
separator tank (VST) and replace the high pressure fuel pump screen inside.

Bill Grannis
service manager