Mid-80's Mariner 2 Stroke 50HP - Won't Start

[117]

Hi Guys,

I have acquired a mid 80's Mariner 2 Stroke 50hp - Serial 9492393 and I can get it to start.

I have installed new battery, and changed spark plugs, starting process was attach flush muffs, run hose, connect tank, 50:1 fuel mixture, connected tank and pumped pressure bulb until hard, choked twice, then start - starter motor runs fine and flywheel moves but wont start even after a few attempts.

Apologies for the nature of my question, but I am fairly new to boats and starting procedure etc, so maybe I am making a glaring error?

I have thought that possibly there was old 'varnish' in the carbs (engine hasnt been started since 2008) but I have got as far as removing four screws under cover and removed the air box, and what looks to be a side view of the carb unit is under there - anyone have any pointers on removing carbs for cleaning on this engine?

Thanks for your help guys,
John

 

[117]

I have now had another go but still no starting - I have taken the plastic inspection cover off and in the carbs it looks like the bottom jet gets a tiny flow of fuel when attempting to start, but the jet on the top carb seems to remain dry, I have managed to remove the fuel filter and drain out the fuel line, but still can see no way of draining or removing the carbs without taking the whole engine to pieces - could it be that the fuel I am using (around 8 months old, but only just mixed with oil) is too old, would this prevent the engine from starting at all?

Thanks for your help guys.

 

[fastjeff]

Could be. Fuel is blended for the weather conditions at the time and yours is WAY off. Try a shot of ether into the OPEN carbs.

Jeff