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1368 Views 7 Replies 5 Participants Last post by  HP&Torque
Well, I had my tach calibrated today and it read 40 rpm low. So when the tach was at 7500 rpm the actual eng. rpm's were 7460. I have a "01" ZR800. FYI.

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Can you still adjust the new cat tach?
What was the most you have seen a Cat tach off?
Did see some old 650 polaris tachs way off with engine rpm over 9000.
Thanks for the info Auggie. Are you drag racing??
Fine Line makes a tach calibrator ($250) you use it for a true input to adjust your tach.
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