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Spartan426

YZ400/YZ426 stator cover questions

6 posts in this topic

Hi everyone, I just baught a Pro circuit Stator cover off ebay for my 02 YZ426. It's used, it came off of a 1999 YZ400 i checked the part numbers and the 02 yz426 and 99 yz400 have the same OEM part numbers for the stator cover so I went ahead and won the auction. When I recived the cover i was inspecting it trougholy and upon investigation i found a small chip in the covers "mating surface" to the engine case, (wasnt shown in pictures online) it worries me because i dont want any oil getting passed/trough the gasket. It's on the bottom of the cover so it constantly has oil by that part of the gasket, take a look at the pictures.

My couple questions are

#1: can i repair this chip? is it crutial? will oil leak trough in its current condition? I was thinking sense its so small could i use a small ball of JB weld and squash it down in to make the surface smooth again? i dont know what metals JB weld will adheare to, nor do i know what metal this cover is made from. (The stock cover is made of magnesium.)

#2: how does the condition of the cover over all look to you guys?

#3: I would like to have the cover stripped down/sand blasted and powder coated black, leaveing the lettering bare so their shiny silver. Would this be possable with the kind of metal its made out of?

Any Input would be very apprechiated! :ride:IMG_8003.jpgIMG_8004.jpgIMG_7996.jpgIMG_7999.jpg

This pic is decieveing, the surface is fine accept for that chip, the concave looking part next to the chip is a bad camera angle.

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I would clean the chip out real good with some acetone then use some JB weld after it gets hard sand it flat use a large flat suface and large piece of sand paper put the sand paper on the flat surface sand the complete mating surface of the cover to make sure it flat across the complete mating surface clean again and put on the bike.

Edited by marv02
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I would clean the chip out real good with some acidtone then use some JB weld after it gets hard sand it flat use a flat suface a large piece of sand paper put the sand paper on the flat surface sand the complete mating surface of the cover to make sure it flat across the complete mating surface clean again and put on the bike.

Pretty much what i was thinking of doing! :thumbsup: Acidtone wont hurt the metal? (sorry never used it)

Do you think powder coating this cover is an option? or even just spray painting with a tough paint? (any paint saguestions?)

what would be a good way to clean this to bare metal or to the point where paint will adhere to it properly?

Thanks for the reply! :ride:

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"Acetone"

Brake cleaner will work as well. File the surface of the chipped area just enough to expose new metal first.

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"Acetone"

Brake cleaner will work as well. File the surface of the chipped area just enough to expose new metal first.

Will do, thanks! :thumbsup:

any saguestions on cleaning this thing up so paint and or powder coat will adhere properly?

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Acetone, MEK, Freon fixes everything I am aircraft mechanic for a living

we dont mess around. :goofy: :goofy: :goofy::rolleyes: :rolleyes: :rolleyes::p :p :lol:

Edited by marv02

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