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Old 25 August 2005, 09:41   #1
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Starting a Optimax 225

For those who own this engine or work with them:

How many times would it take to start a cold Mercury Optimax 225.

Mine usualy takes 3 tot 4 times before it will keep on running. Is this normal ?

Starting at apr. 22 degrees celsius.

The battery is big enough and brandnew.
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Old 25 August 2005, 10:05   #2
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I have the same engine and always start first time.

If its cold I pump the fuel bulb a couple of times and press in the key to give choke, it starts right up.

If its warm then no fuel bulb or choke and again immediate ignition.

Ollie
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Old 25 August 2005, 10:07   #3
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Quote:
Originally Posted by qcamel
I have the same engine and always start first time.

If its cold I pump the fuel bulb a couple of times and press in the key to give choke, it starts right up.

If its warm then no fuel bulb or choke and again immediate ignition.

Ollie
Press in the key ? Oops didnīt know that.
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Old 25 August 2005, 10:10   #4
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Is an Opti fitted with a choke?? I Though the were Electronic fuel Injected therefore fully auto. Surley the key push is for carburetor (sp) engines.

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Old 25 August 2005, 10:19   #5
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Not clever enough to know one way or the other but when Scorpion did the hand over with me they told me to use it in the starting procedure...

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Old 25 August 2005, 10:22   #6
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Ollie, I'll check the manual and get back to you.
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Old 25 August 2005, 10:23   #7
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No, its not normal, it should go straight away. They do take a little more cranking than normal engines to get the air pressure up to get the injection system going. But once its running it should stay running.
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Old 25 August 2005, 12:46   #8
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I stand to be corrected but I don't think the push-to-choke facility on the remote actually does anything on an opti - as Brian says ; blackbox electronics, no choke.
You must never lift the fast idle lever to start it either - only use (if necessary) once it is running. The engine is slower to start than more conventional 2 strokes - it has to make a full revolution to pressurise the injector rails etc before it will fire. They do start so easily though that it is easy to forget to squeeze up the primer bulb beforehand - most times it doesn't make a difference but after towing I do find it has gone soft !!!
Jeff
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Old 25 August 2005, 13:08   #9
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I find shouting " Start, you b*****d, START! " works for most makes of engine....
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Old 25 August 2005, 15:08   #10
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The opti should start on the Button within a second or two.

They really need a strong battery to start them as they require a lot more power than just turning the starter motor, so they can be spinning quite happily but not getting enough juice to light up the ignition system
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