Yamaha 15D Twostroke

nonotion | 09:36 Fri 26th Jul 2013 | How it Works

5 Answers

despite replacing the impellor,I have no cooling water circulation.I would appreciate pointers as to possible,reasons and or answers.Thank for reading.

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Clanad

The Owner's Manual only states to check for blockage... which I'm sure you have done. It's a pretty simple system... the impeller you've replaced is a simple drive system... the only thing I could recommend (short of taking it to a Yamaha dealer) is to check the entire ciruclation chamber for blockage...

nonotion

Question Author

Thank you Clanad.
Your answer is helpful as I thought I may have made a simple error on assembly .Are to your knowledge, gaskets emloyed either side of the plate, or is the plate itself the gasket. There were no gaskets with the new impellor.
Again thank you.

nonotion

Question Author

Thank you again clanad.
I think you are correct,a blockage that is not very accessable.
We forge on.

Clanad

There doesn't appear to be any gaskets in the assembly, nonotion.

Here's a good depiction of the removal and reassembly of the impeller...