225 yam dying

mayday 57 · 01-22-2010, 11:06 PM

I can run at 1800 rpm and less and it will not die but when i run for a 1/4 mile sometimes less it dies like the fuel was shut of . let it sit 30 sec it fires up and runs. but when i was in calm water i ran at 4500 4 or 5 miles with no issue. any sugestions on where to start?

oceansbreeze · 01-23-2010, 01:10 AM

I would change the in lineand enginefuel filter and check the old ones for water and see if there is any kind of very smallrubber particlesin either one.

Have you try pump the primer bulb after it stop? Was it soft?

How old the boat?

How old the gas?

When was the last time it ran okay?

It sound like it may be a fuel problem.

mayday 57 · 01-23-2010, 08:56 AM

the bulb was a little soft .

2001 boat.

pretty fresh gas w/stabil.

first time i have ran the boat since the sea trial but it did run perfect for 4 or 5 hours that morning.

DOUBLE "D" & LV · 01-23-2010, 10:17 AM

what 225 yamaha do you have? (carb, fuel injected, 4 stroke)

mayday 57 · 01-23-2010, 11:14 AM

efi 2 stroke

DreamWeaver21 · 01-23-2010, 11:16 AM

Change the fuel water seperator and the onboard filter element. See if that fixes it.

Next guess would be either low preasure fuel pumps or VST tank /filter cleaning.If it is not the filters then it sounds more like low preasure fuel pumps need replacedthana VST issue.

Do post what 225 it is.If it is an OX66 it is almost surely one or some combination of these three things.

edit* We posted at the same time. I have the same motor and have had the exact same issue a couple of times. Once the issue was a clogged filter element in the little onboard filter with the red ring in it. I took the element out for testing purposes and the boat ran fine. I bought a new filter element and was back in business. This was after I had it in the shop twice and spent $700 for nothing. Another time it was the low preasure fuel pumps getting old. They wear out but are pretty cheap at like $35 a piece (there are 3) and are easy to change.

Usually the VST issue presents at a brief cut out at speed when hitting a wave so it would be my third try. Is this on a 23 cobia?

mayday 57 · 01-23-2010, 11:28 AM

ox66 yes 234 cobia

DreamWeaver21 · 01-23-2010, 11:42 AM

PM sent. I'll be AFK for an hour or so though.

JollyGreen · 01-23-2010, 11:51 AM

PM sent

mayday 57 · 01-23-2010, 11:57 AM

AFK ?

01-22-2010, 11:06 PM	#1
mayday 57 Senior Member Mingo Join Date: Nov 2008 Posts: 123	225 yam dying I can run at 1800 rpm and less and it will not die but when i run for a 1/4 mile sometimes less it dies like the fuel was shut of . let it sit 30 sec it fires up and runs. but when i was in calm water i ran at 4500 4 or 5 miles with no issue. any sugestions on where to start? __________________ a.k.a reel jiggy 2301 cc cobia /225yam

01-23-2010, 01:10 AM	#2
oceansbreeze Senior Member Mingo Join Date: May 2009 Posts: 121	RE: 225 yam dying I would change the in lineand enginefuel filter and check the old ones for water and see if there is any kind of very smallrubber particlesin either one. Have you try pump the primer bulb after it stop? Was it soft? How old the boat? How old the gas? When was the last time it ran okay? It sound like it may be a fuel problem.

01-23-2010, 08:56 AM	#3
mayday 57 Senior Member Mingo Join Date: Nov 2008 Posts: 123	RE: 225 yam dying the bulb was a little soft . 2001 boat. pretty fresh gas w/stabil. first time i have ran the boat since the sea trial but it did run perfect for 4 or 5 hours that morning. __________________ a.k.a reel jiggy 2301 cc cobia /225yam

01-23-2010, 10:17 AM	#4
DOUBLE "D" & LV Senior Member Grouper Join Date: Oct 2007 Location: pensacola Posts: 863	RE: 225 yam dying what 225 yamaha do you have? (carb, fuel injected, 4 stroke)

01-23-2010, 11:14 AM	#5
mayday 57 Senior Member Mingo Join Date: Nov 2008 Posts: 123	RE: 225 yam dying efi 2 stroke __________________ a.k.a reel jiggy 2301 cc cobia /225yam

01-23-2010, 11:16 AM	#6
DreamWeaver21 Senior Member Snapper Join Date: Oct 2007 Posts: 554	RE: 225 yam dying Change the fuel water seperator and the onboard filter element. See if that fixes it. Next guess would be either low preasure fuel pumps or VST tank /filter cleaning.If it is not the filters then it sounds more like low preasure fuel pumps need replacedthana VST issue. Do post what 225 it is.If it is an OX66 it is almost surely one or some combination of these three things. edit* We posted at the same time. I have the same motor and have had the exact same issue a couple of times. Once the issue was a clogged filter element in the little onboard filter with the red ring in it. I took the element out for testing purposes and the boat ran fine. I bought a new filter element and was back in business. This was after I had it in the shop twice and spent $700 for nothing. Another time it was the low preasure fuel pumps getting old. They wear out but are pretty cheap at like $35 a piece (there are 3) and are easy to change. Usually the VST issue presents at a brief cut out at speed when hitting a wave so it would be my third try. Is this on a 23 cobia?

01-23-2010, 11:28 AM	#7
mayday 57 Senior Member Mingo Join Date: Nov 2008 Posts: 123	RE: 225 yam dying ox66 yes 234 cobia __________________ a.k.a reel jiggy 2301 cc cobia /225yam

01-23-2010, 11:42 AM	#8
DreamWeaver21 Senior Member Snapper Join Date: Oct 2007 Posts: 554	RE: 225 yam dying PM sent. I'll be AFK for an hour or so though.

01-23-2010, 11:51 AM	#9
JollyGreen Senior Member Mingo Join Date: Jan 2008 Posts: 151	RE: 225 yam dying PM sent

01-23-2010, 11:57 AM	#10
mayday 57 Senior Member Mingo Join Date: Nov 2008 Posts: 123	RE: 225 yam dying AFK ? __________________ a.k.a reel jiggy 2301 cc cobia /225yam

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