Recent content by Sparty047

There seems to be some confusion: Early on I did a voltage drop test between the battery and starter motor which was A-OKAY. Is everyone referring to only this test when they say Voltage Drop Test? The starter circuit has a starter relay switch (Kubota term in their shop manual) that is...

There seems to be some confusion about my use of the term starter relay: I have attached page 422 of the Kubota shop manual for the L2501HST. You will see that they use the term "Starter Relay" to ID the relay in the engine start system. When I perform the harness testing with the main switch...

BTW.....since this is a hydrostatic drive I do not fear being run over when starting it up. I do as a habit climb up into the seat to start it. As for the PTO..... I only engage it from the seat, and lways turn it off well before stopping the engine. When I get an engine start button wired...

You and others keep referring to the voltage drop test which I understand is done between the battery and the terminals on the starter motor itself (AND I"VE DONE THAT!). NO ONE has EXPLAINED if/how voltage drop testing can be used to isolate where the voltage drop originates within the...

Well, Okay then! By reviewing all responses (thank yous to each respondant) it looks like a "go" to me. I am going to put all the wiring bundles back together, secure the fuse block, and wire a simple "engine start push button momentary start switch" to replace the starter relay. BTW: Doing...

For the long version of my starter system problem see my previous post! 1) I know there is an issue causing a voltage drop in the current sent to the starter relay harness when the main switch is turned "on". It only measures 10.8V versus the battery's 12.7V which fails to activate the starter...

The issue is with a 2017 Kubota L2501 HST ignition system: At the harness for the starter relay the red wire V reads = to Battery (ie. both 12.6 V) but the lead that is "switched on" by the main switch reads ~1.5V low (ie. 10.8V - not 12.6V expected) and the starter relay is NOT activated...

Well, I know that when I turn the ignition the A terminal on the starter relay harness only reads 10.8 v while the C terminal reads 12.6 v.......so have a voltage drop issue. Where is it and how to locate it is the issue. I am replacing the main switch for $20 to assure that's not the source...

Yeah.......tried one guy wiggling that connector (after removing and cleaning it) as second guy turned the ignition key (having verified continuity of all safety relays) without positive result. And again, if I jump the terminals on the starter relay harness the starter immediately cranks over...

Yuppie! Been there, done that......(it is crappily lightweight...lol)

As you state, you did not read all the posts. The issue is failure of ignition system to send a signal through to the starter motor! If I bypass the circuit for the starter relay the tractor will "jump start" with gusto. Therefore the battery is not the issue. I have a device built with a...

thanks taking note. Battery cranks starter just fine when I jump start so it passes load testing.

Here's where I am: (see above): 1) Connector Voltage 3. = batt voltage =OK 4. was ~ 1.5 V lower = Fail But switch, batt & slow fuse all checked OK 2) Starter relay failed (3.4) so replaced. But still no crank !!! With starter relay removed: Refer to diagram: I can...

will do tomorrow...thanks. It's definitely a click. Am I correct to assume the voltage check on the smaller starter terminal is performed to chassis with someone turning the key? Or is it done with ignition in the off position? Sorry for my lack of Kubota experience...my mechanical acumen...

Looks like the voltage drop test is carried out with the starter cranking. Is there a way to check under my current conditions?