F2690E

jones6780 · Sep 29, 2025

So I found a F2690E with a 60" flip up deck on an auction and pulled the trigger. I got it home Wednesday, it's new to me but was listed as a 2015 model with 1800 hours. I bought it based on photos, got it home put a jump box on it and she fired right up and works as it should even got 3/4 tank of fuel.
I have been cleaning up and checking everything. I have ordered filters and fluids as I don't know when it was serviced last. The tachometer is not working. I thought I found the problem with a black ground wire broken on the connector for the speed sensor. Checked around for a replacement pigtail and got a shock. They wanted $88 for a replacement connector. I went another route and de-pinned the connector and soldered the wire back together. Problem is the Tach still doesn't work.

I forgot to mention that it came with a grass catcher but the vacuum blower is missing. Kubota is mighty proud of their parts.

RjCorazza · Sep 30, 2025

Congrats on the new to you mower!
That's a quality machine well worth repairing, having many hours of life left.
IMHO, the grass catcher adds limited resale value, so if it doesn't meet your needs, you could always just scrap it.

jones6780 · Sunday at 11:07 PM

Still trying to figure out why the tach is not working. Any ideas?

Richard001 · Tuesday at 12:24 AM

jones6780 said:
Still trying to figure out why the tach is not working. Any ideas?

You didn't tell us how old your machine is or specific model number, but here is a diagram of the tach.

And here are some of the part numbers:
020

17215-83010 TACHOMETER

product not available CALL FOR AVAILABILITY

$532.75

item 070

1G377-59710 SENSOR(REVOLUTION)

product not available CALL FOR AVAILABILITY
$345.09

It is not clear what type of sensor it is, but typically that would be a hall effect sensor and it would be counting teeth on the flywheel.
Made sure that it is clean on the end and is adjusted the correct distance from the flywheel.

You can down load the user manual from here: