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mikemac

25 hp Yamaha water pump impeller

7 posts in this topic

Hello to all of you outboard motor experts. I need some help. I need to install a new impeller and I'm looking for any tricks or tips. I have never done it on this motor so looking for any help that may be out there.

1993 2 stroke oil injected engine

Model: 25ELHR

Code: 6L2 L

Ser: 551847

Thanks alot!!!!

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grease it up a LITTLE bit, wihle pushing it in rotate it the way the engine turns so they dont have to bend the right way and possibly break off, also dont loose that little pin! learned that the hard way

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Don't loose what little pin?? I have not even taken it apart yet. When I remove the bolts that hold the lower unit on, is there some sort of shift linkage that I need to remove as well?? Any other tricks for replacing the impeller?? How do I know which way the engine turns?? Just bump it over with the starter??

Thanks for the help!!

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The driveshaft will always turn clockwise.

I can't recommend a shop manual strongly enough. That $30 will pay for itself 25 times over.

Also, I wouldn't just replace the impeller...get the kit with the new housing, wear plate, impeller, key, cup, gasket, and bolts.

I tried to save $25 by just replacing the impeller and it didn't fix the problem. Bought the kit and it worked perfect.

Hannay's in St. Anthony is where I had the best luck finding in-stock parts. Otherwise boats.net is a Yammy dealer from Clearwater, FL that has prices that are tough to beat if you can wait 4 days for delivery.

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broken_line and Loon, thanks for the info!!

Anyone else with any info?? Valv or Marine Man??

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If you are in Forest Lake Halbergs has always been good about having the part I need. Make sure you have your model # off the motor before you go in.

I've done two impellers now, one on an 8 horse the other on a 150, its not too bad. Maybe take you 2 hours tops.

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It should have a 2 piece shift shaft that you will need to disconnect by unscrewing it. You will see the shaft, a long nut and a jam nut on the leading edge of the motor going down (move the shifter a little bit and you will see what I mean), count the turns or threads showing for reassembly.

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