KX500 water pump modification

Dirt Bike Technical discussion. This is for a little more in depth discussions :-)
Qsixteen
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Re: KX500 water pump modification

Post by Qsixteen » Sun Oct 13, 2013 5:35 pm

The top flow meter is what I started with 20 years ago. Good basic readings, they do they have pro's and con's. You will need to also measure rpm of impeller. And have about 8-10 pressue gauges. That will get you started.

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Sandblaster
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Re: KX500 water pump modification

Post by Sandblaster » Tue Feb 04, 2014 1:50 am

Motorrads next mods...

This is a water pump cover that has been machined to thickness and hollowed out..
motorrads impeller mods 1.png
motorrads impeller mods 1.png (553.42 KiB) Viewed 2314 times
Modded after market impeller
motorrads impeller mods 2.png
motorrads impeller mods 2.png (296.06 KiB) Viewed 2314 times
motorrads impeller mods 3.png
motorrads impeller mods 3.png (175.36 KiB) Viewed 2314 times
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Sandblaster
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Re: KX500 water pump modification

Post by Sandblaster » Tue Feb 04, 2014 1:51 am

motorrads impeller mods 4.png
motorrads impeller mods 4.png (372.9 KiB) Viewed 2314 times
motorrads impeller mods 5.png
motorrads impeller mods 5.png (376.27 KiB) Viewed 2314 times
motorrads impeller mods 6.png
motorrads impeller mods 6.png (470.25 KiB) Viewed 2314 times
If bikes are for kids I'll never grow up.

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Sandblaster
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Re: KX500 water pump modification

Post by Sandblaster » Tue Feb 04, 2014 1:52 am

motorrads impeller mods 7.png
motorrads impeller mods 7.png (568.56 KiB) Viewed 2314 times
motorrads impeller mods 8.png
motorrads impeller mods 8.png (356.38 KiB) Viewed 2314 times
I can't wait to see what the results are..
If bikes are for kids I'll never grow up.

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Sandblaster
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Re: KX500 water pump modification

Post by Sandblaster » Tue Feb 04, 2014 1:54 am

The other cool thing about this mod... You would have to look real hard to see that anything has been done..
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Sandblaster
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Re: KX500 water pump modification

Post by Sandblaster » Tue Feb 04, 2014 1:58 am

I couldn't help but notice...
motorrads impeller mods 4 what.png
motorrads impeller mods 4 what.png (381.73 KiB) Viewed 2313 times
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Sandblaster
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Re: KX500 water pump modification

Post by Sandblaster » Tue Feb 04, 2014 4:07 am

bolt or threaded rod?
motorrads impeller mods 2 threads.png
motorrads impeller mods 2 threads.png (291.85 KiB) Viewed 2311 times
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Motorrad
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Re: KX500 water pump modification

Post by Motorrad » Tue Feb 04, 2014 4:20 pm

Sandblaster wrote:bolt or threaded rod?
motorrads impeller mods 2 threads.png
6mm to 5mm grade 8 adaptor I made. I just never cleaned the end where I sawed it off.

since the threads in the impeller are 6mmX1.0 and the stock kawi is 5mm X ?
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Motorrad

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Sandblaster
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Re: KX500 water pump modification

Post by Sandblaster » Tue Feb 04, 2014 10:20 pm

I opened mine a bit but, mostly I cleaned up and blended the edges.
KX500 INNER CLUTCH COVER BLENDING 2.JPG
KX500 INNER CLUTCH COVER BLENDING 2.JPG (48.1 KiB) Viewed 2306 times
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Sandblaster
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Re: KX500 water pump modification

Post by Sandblaster » Mon Feb 10, 2014 3:46 am

Here is Motorrads mods for his Super impeller :shock:

The kit. ended up needing 4 gaskets for clearance. so take that into account when you cut your spacer. every setup is differant, including the 3 other pump covers I have here.
motorrads impeller mods 9.png
motorrads impeller mods 9.png (1.07 MiB) Viewed 2296 times
Impeller, 2 angle cuts for clearance. bottom cut down to get rid of big step in impeller (see earlyer pictures of it in this thread), .047" step cut from impeller face to center . 6mm to 5mm adaptor. uses stock out of kawi parts fich washer spacer.
motorrads impeller mods 9-1.png
motorrads impeller mods 9-1.png (683.69 KiB) Viewed 2296 times
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