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Old 09 August 2019, 18:59   #41
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I do mine to yamahas schedule which is twice a year on my engine ( every 200hrs). They always look ok but the cost of replacing is pretty cheap using a mobile Yamaha mechanic. Having a good record of maintaining any outboard or vehicle helps maintain its resale value.
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Old 09 August 2019, 19:02   #42
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Originally Posted by Locozodiac View Post
The impeller duration will depend entirely on the motor brand, some are manufactured with plain rubber, other with elastomers which have a much longer useful life. If wanting a long live the impeller, when out of summer season use, rotate the flywheel periodically at least once or twice a month, that way all the vanes will compress, expand and stop at a different position.

To understand, impeller liners are not oval, are eliptical, that means that at 12 o'clock position the upper side of the impeller will remain fully compressed and the opposite 6 o'clock side will remain fully expanded, that's why needs to be rotated periodically for impellers specially the rubber ones to prevent becoming hardened in the 12 o'clock position while sitting inactive for long time periods even years.

Motors running on sandy, silt, muddy water cond will account for a shorter impeller and liner duration.

Happy Boating

Good points
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Old 09 August 2019, 22:23   #43
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If you don't like what I post don't read it..... Others benefit I am sure and I just received some PM's confirming it.
Yup, there's always someone like Jeepster to back up another one.
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Old 10 August 2019, 07:48   #44
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Yup, there's always someone like Jeepster to back up another one.
I miss Jeepster. Rib.net needs a good lightweight trailer thread!
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Old 10 August 2019, 07:56   #45
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I miss Jeepster. Rib.net needs a good lightweight trailer thread!

I think we're close
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