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Old 10-16-2022, 05:36 PM
Ramairnacho Ramairnacho is offline
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Default Windage tray

I was going through my dad's garage and found my windage tray but it's a full size. Is this correct for a 1970 yz 400 or do I need a 3/4 tray. The machine shop thT 1st rebuilt my engine stole my heads and I think.he messed up parts. I noticed the tray lost a spacer and I need a new tray but not sure which one.
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Old 10-16-2022, 05:38 PM
Ramairnacho Ramairnacho is offline
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Default More pics

I honestly don't remember , my car been sitting for 25 plus years. I was told this is incorrect and I need a 3/4 tray. I need advise thanks in advanced.
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Old 10-16-2022, 07:03 PM
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Gary H Gary H is offline
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That first picture is a full-size tray. On a 400 stroke you can use either tray. But originally the full-length trays came on the 65' - 68' engines, and the 3/4 length trays came on the 69' thru mid 73' engines.

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Old 10-16-2022, 07:13 PM
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Didn’t ram air IV have a full length? I can’t remember because I haven’t had one in an engine in decades don't run them.

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Old 10-16-2022, 07:34 PM
Ramairnacho Ramairnacho is offline
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Default Stock tray

Quote:
Originally Posted by Gary H View Post
That first picture is a full-size tray. On a 400 stroke you can use either tray. But originally the full-length trays came on the 65' - 68' engines, and the 3/4 length trays came on the 69' thru mid 73' engines.
What's the correct tray for 70 ra3 auto?

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Old 10-16-2022, 07:56 PM
'ol Pinion head 'ol Pinion head is offline
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Quote:
Originally Posted by Ramairnacho View Post
What's the correct tray for 70 ra3 auto?
Gary told you in above reply...

it will also have a faint 0 stamped into it.
0 = 350 & 400

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Old 10-17-2022, 06:04 AM
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Mr Twister Mr Twister is offline
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The Butler Performance windage tray is a lot thicker than that one you have. I saw a stock one break into pieces in the past.

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Old 10-17-2022, 11:53 AM
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Quote:
Originally Posted by Ramairnacho View Post
What's the correct tray for 70 ra3 auto?
3/4 long tray. yours is probably on your engine

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