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Old 09-10-2015, 09:13 PM   #1
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150 optimax running problems

Hi folks, I have been having issues with a 150 opti all season. The boat has lay up for a few seasons with just the ocassional run on the muffs to keep things right. However on re commissioning this year the engine will start and run ok up to about 2000rpm then after this when applying any amount of throttle the engine will surge and in worst cases actually almost stall to an idol. To date we have refreshed with new fuel, changed fuel filter, plugs, and drained the lower bowl a few times. Is it a matter of DDT time at a stealers or can any kind sole offer a solution.
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Old 10-10-2015, 07:55 AM   #2
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Do you have the opti hooked up to Smartcraft gauges ? If you do any fault readings ? Next you really need to read the faults stored on the ECM so yes DDT to point you in the right direction. There is a free to download operations manual on line if you google it that will help you if you don't already have 1

I had a bogging down problem early this year, changed all fuel lines and had water/fuel in the breather pipe from fuel tank & changed fuel filters, this sorted the problem. Optimax are known to go through direct injectors I had to replace one this year, they are expensive and you need to buy new as the seal can expand if exposed to air then they won't go into the head

Jason
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Old 10-10-2015, 03:51 PM   #3
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Hi Jason yes hooked up to smart craft guages no errors that I know off is there a combo of buttons you need to press to get fault codes?
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Old 10-10-2015, 04:54 PM   #4
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Hi Jason yes hooked up to smart craft guages no errors that I know off is there a combo of buttons you need to press to get fault codes?
No it would display an issue for example injector fault ! No codes from Smartcraft, when mine was bogging down no fault messsges on the Smartcraft so could be fuel starvation related, still worth hooking up to a DDT, I was charged 1/2 labour to run the DDT on our opti when we had a bad direct injector

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Old 10-10-2015, 06:33 PM   #5
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If thats the case I will try running it on a 25 litre tank and see how it goes. Thanks for your help
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Old 10-10-2015, 06:35 PM   #6
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out of interest what did 30 mins cost on ddt, pm me if you prefer
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Old 10-10-2015, 07:12 PM   #7
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out of interest what did 30 mins cost on ddt, pm me if you prefer
27 including vat

What year is your opti ?
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Old 10-10-2015, 07:32 PM   #8
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2006 banana stripe with only 30-40 hours
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Old 10-10-2015, 07:34 PM   #9
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what has happened this place? used to be mental has everyone went to facebook
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Old 11-10-2015, 06:21 PM   #10
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Get the DDT on it then go from there ��
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