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Old 11 March 2012, 18:23   #11
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If you going to use an additive you'd be better to run it up to working tempreture or to get the thermostat open in a tank ,barrel or if on a mooring with a waterproof bag slipped over the leg,
My old man used to flush his through with car antifreeze as long as it had the anti corrosion stuff added ..or domestic heating/radiator additive.
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Old 11 March 2012, 18:29   #12
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What happens to the hundreds of outboards that never get flushed? I see loads.

I plug the hose onto the back of then engine to flush it as it has a connector, always wondered if it flushed it properly.
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Old 11 March 2012, 20:12   #13
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What happens to the hundreds of outboards that never get flushed? I see loads.

I plug the hose onto the back of then engine to flush it as it has a connector, always wondered if it flushed it properly.
You'll soon see when you come to replace the impeller - the state of the impeller housing is a good indicator.
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Old 12 March 2012, 21:00   #14
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What happens to the hundreds of outboards that never get flushed? I see loads.

I plug the hose onto the back of then engine to flush it as it has a connector, always wondered if it flushed it properly.
just changed the impeller in my Yamaha and still no water so i opened up the water ways and there was a consideral ammount of salt in there but not completely blocked but im thinking it was enough to causes my issue.
i should have taken pics
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Old 13 March 2012, 03:33   #15
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some outboards have a fine jet fitted to the end of the telltale - these can be prone to getting blocked by even a small piece of grit or salt. if it has one then flick the end off and have a look.
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Old 13 March 2012, 06:21   #16
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some outboards have a fine jet fitted to the end of the telltale - these can be prone to getting blocked by even a small piece of grit or salt. if it has one then flick the end off and have a look.
Yep mine (Suzi DF70) has a fine jet for the telltale which is susceptible to blocking so no telltale doesn't necessarily mean no water circulation - but I keep a piece of wire handy to unblock the telltale exit with.
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Old 13 March 2012, 08:18   #17
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