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| Starts but won't stay running https://www.smwebhead.com/phpBB3/viewtopic.php?f=11&t=1942 |
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| Author: | theMark1 [ Sat May 24, 2008 2:44 pm ] |
| Post subject: | Starts but won't stay running |
Just bought a 94 freedom with a 3.0L I/O OMC. Boat has been sitting up for 10 years. Garage Kept. Problem: Drained old oil and gas. Changed plugs and battery. Starts easy for a few seconds, but wont stay running. Any ideas, Please. |
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| Author: | M3eater [ Sat May 24, 2008 3:04 pm ] |
| Post subject: | Re: Starts but won't stay running |
Once it stalls, does it start right back up? if not, what do you need to do to get it started again? |
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| Author: | theMark1 [ Sat May 24, 2008 3:27 pm ] |
| Post subject: | Re: Starts but won't stay running |
Restarts the same way. Starts easy, then sputters out. |
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| Author: | 230 Mike [ Sat May 24, 2008 3:29 pm ] |
| Post subject: | Re: Starts but won't stay running |
I'd guess something carb related. I'd want to rebuild or replace any carb that's been sitting unused for 10 years. |
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| Author: | M3eater [ Sun May 25, 2008 12:24 pm ] |
| Post subject: | Re: Starts but won't stay running |
You may be just running on the shot of fuel from the accellerator pump, but no fuel flowing through the idle or main jets. In this case. a "rebuild" is in order. Will the engine restart if you don't pump the throttle (which pumps fuel through the accellerator pump, assuming it is working)? |
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| Author: | Jim_R [ Wed May 28, 2008 7:58 pm ] |
| Post subject: | Re: Starts but won't stay running |
Got to be a varnish build up in the carb if it sat so long with gas that old, stabil or no stabil. You could try and run some carb cleaner though it. Another thing to swap immediately would be that 10 year old fuel filter. |
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| Author: | LouC [ Wed May 28, 2008 8:04 pm ] |
| Post subject: | Re: Starts but won't stay running |
After sitting that long, you'll probably have to go thru the whole fuel system, rebuild the carb, change all filters, make sure the gas tank is clean, and check the antisiphon valve on the gas tank. May also consider replacing the rubber fuel lines. There was gas that evaporated in the carb, leaving behind deposits that probably clogged jets in the idle circut. If you're not familiar with carb rebuilding you could remove it yourself and take it to a shop. |
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