Primary chain adjustment

[IronButt70]

I searched but didn't find a definitive answer. It seems that 5/8" is the proper amount of deflection for the chain. When I push up or down hard it pushes the auto tensioner down. Should the measurement be taken then or with the tensioner in its normal position? Trying to track down a vibration. TIA

[Karl H.]

...When I push up or down hard it pushes the auto tensioner down. Should the measurement be taken then or with the tensioner in its normal position?...

In its normal position!

Karl

[IronButt70]

...When I push up or down hard it pushes the auto tensioner down. Should the measurement be taken then or with the tensioner in its normal position?...

In its normal position!

Karl

Thanks. That's what I thought but wanted to be sure. With the tensioner in that position there's only about 1/4" of deflection.

[rbabos]

...When I push up or down hard it pushes the auto tensioner down. Should the measurement be taken then or with the tensioner in its normal position?...

In its normal position!

Karl

Thanks. That's what I thought but wanted to be sure. With the tensioner in that position there's only about 1/4" of deflection.

1/4" lift from the mid low point will give you in the area of a total of 5/8+ with shoe compression. Key is measure the up slack, not pushing down.  Second method can be measure the total up including shoe compression. Total of 5/8 - 3/4 is fine.
Ron

[IronButt70]