1985 CR125 Water Pump Rot

85CR125
Posts
7
Joined
10/13/2019
Location
Johnson City, TN US
12/28/2019 2:39pm Edited Date/Time 12/29/2019 7:07pm
Any suggestions on the best way to remove the hardened gunk in the water pump area? Any type of cleaner/chemicals, or just straight up elbow grease? This is from the all too common water pump rot on the older CRs.
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tzmike
Posts
444
Joined
2/22/2014
Location
Warwick, NY US
12/29/2019 2:23pm
Those cases are Magnesium
You can try muriatic acid SPARINGLY as it will help dissolve aluminum when you scuff a cyl from a lite pistone seizure
I personally never tried it on Magnesium
Be careful.
12/29/2019 7:06pm
Take it to have it soda blasted. Then you will really see how many holes need to fixed. I did that with mine and then JB Welded it.
2
85CR125
Posts
7
Joined
10/13/2019
Location
Johnson City, TN US
12/29/2019 7:28pm
Thanks Brian. I will look into that.

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