1987 CR500 water pump/inner clutch cover help!!!!

[Sandblaster]

I have a customer and his 87 CR500 has a ruined water pump/inner clutch cover.
Magnesium hates old radiator fluid

1987 cr500 inner 1.jpg (313.64 KiB) Viewed 10003 times

1987 cr500 inner 2.jpg (242.47 KiB) Viewed 10003 times

1987 cr500 inner 3.jpg (158.89 KiB) Viewed 10003 times

Since the inner clutch covers before 1994 are discontinued what can you do?
Buy a 2001 inner clutch cover, get a new radiator hose, and shim your rear brake lever out a bit to clear the new cover.
Everything else bolts up.
Now get out there and destroy some 4 strokes

Or, check out this cool chart researched and made available by Roost... Then go out and destroy some 4 strokes

[Sandblaster]

Awesome research Roost.
Thanks for making it available.

[Sandblaster]

Here is a 01 CR500 Inner clutch cover we are putting on a customers 87 CR500

lrg_1431559218878_5257953110_f0ee915b.jpg (35.09 KiB) Viewed 9985 times

Gotta love that VHT Gloss Black.
Can't wait to get this engine built...

[Sandblaster]

Vapor blasted or black?

BLACK OR VAPOR BLASTED.JPG (33.56 KiB) Viewed 9984 times