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Author Topic: Tachometer calibrating  (Read 631 times)

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Offline mrbuick65

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Tachometer calibrating
« on: October 14, 2023, 07:58:37 AM »
Hello Everyone. Does anyone know if the tach in a 65 GS can be calibrated? Mine is reading about 1800 when actually should be 2100.  Is reading zero when stopped.   
Thanks, John
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Offline Loren At 65GS

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Re: Tachometer calibrating
« Reply #1 on: October 14, 2023, 10:31:21 AM »
Yes, the tachometer has an adjustment. It is on the back of the housing that the tach is in. There should be a round sticker dot. Remove the dot and there is a potentiometer with a screwdriver slot for adjustment.

 Loren
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Offline telriv

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Re: Tachometer calibrating
« Reply #2 on: October 14, 2023, 12:25:04 PM »
John,

Your best bet would be to send it out & have it updated to modern internals for best & most accurate readings.
Otherwise it will end up driving you nuts & IF your not careful could cost your much more to repair a fried component.
Just my thoughts.

Tom T.
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Offline mrbuick65

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Re: Tachometer calibrating
« Reply #3 on: October 14, 2023, 04:15:47 PM »
Hey Loren and Tom. Appreciate your input. Not sure what to do yet.
Thanks so much, John
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Online GS66

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Re: Tachometer calibrating
« Reply #4 on: October 14, 2023, 04:38:49 PM »
 I have one that doesn?t go all the way back to zero so it starts out at 300 and reads that amount over.
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Jim
North Mankato, MN

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