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[deepNdirt]

This morning at temps around 35* I started the tractor without the normal glowing time, to see if in fact this position of the switch is glowing the plugs, and it must do... because I turn to start the tractor right away and it took about 6-7 seconds to start and a large puff of smoke came from the exhaust,
so it will crank and run but takes longer to start, typically as I said before I would turn the switch on for around 10 seconds and then on to start and it would start right up in a matter of a couple turnovers, so I'm thinking my assumption of this type of ignition switch has the glow on the on/run position:thumbsup:

what did you find out Carey?

 

[clemsonfor]

My first failed attemts were my fault probably, cause im use to it catching on the first or second stroke, which is instantly after i let the compression release go, so being use to this i let the key go after the normal split second of cranking after i release the compression release lever. so i never cranked it really for more than 1 or 2 seconds with it after the compression release. Had i not let it go im sure it would have cranked the first time.

 

[normde2001]

This morning at temps around 35* I started the tractor without the normal glowing time, to see if in fact this position of the switch is glowing the plugs, and it must do... because I turn to start the tractor right away and it took about 6-7 seconds to start and a large puff of smoke came from the exhaust,
so it will crank and run but takes longer to start, typically as I said before I would turn the switch on for around 10 seconds and then on to start and it would start right up in a matter of a couple turnovers, so I'm thinking my assumption of this type of ignition switch has the glow on the on/run position:thumbsup:

what did you find out Carey?

I'm confused. Your profile says you have a YM1700. If so, you do not have glow plugs, other than TS, and it is, (should be), active only in the TS switch position.

 

[careyo63]

DND just ran out before it Rains again over here. Yes I showed power to the TS when I Ran my Decompression or in Start 10.5 V. And 12.3 in Acc. I thought I would but wasn't sure. Still CRS. sometimes :confused2: getting better though.

Carey

 

[deepNdirt]

I'm confused. Your profile says you have a YM1700. If so, you do not have glow plugs, other than TS, and it is, (should be), active only in the TS switch position.

I might have confused my self here on this statement, of corse it is TS not glow plugs, I must get a manual some day and read up more on the terms used for the technical parts of my tractor
and about the TS position which way are you saying suppose to activate or heats what ever it heats in order to start the engine? there is simply No turning my switch to the left either.

 

[California]

there is simply No turning my switch to the left either.

Do you have a clutch safety switch? (It interrupts the cable to the starter unless the clutch is depressed.) If you do have the clutch safety switch - put the transmission in neutral then turn the key to Start with the clutch engaged. This should send power to the Thermostart but not to the starter. After 10 ~ 20 seconds release the clutch to allow power to the starter too.

 

[normde2001]

Do you have a clutch safety switch? (It interrupts the cable to the starter unless the clutch is depressed.) If you do have the clutch safety switch - put the transmission in neutral then turn the key to Start with the clutch engaged. This should send power to the Thermostart but not to the starter. After 10 ~ 20 seconds release the clutch to allow power to the starter too.

Are you sure about that? I never tried it, but I can't see it in the schematic . Unfortunately, I have neither the tractor nor the manual handy.

 

[clemsonfor]

Do you have a clutch safety switch? (It interrupts the cable to the starter unless the clutch is depressed.) If you do have the clutch safety switch - put the transmission in neutral then turn the key to Start with the clutch engaged. This should send power to the Thermostart but not to the starter. After 10 ~ 20 seconds release the clutch to allow power to the starter too.

i dont think any of these yms had this feature? I know i have accidentially cranked it in gear for a second befor i realized it. Luckily it was still strapped down to the trailer and did not go anywhere but about 3 inches (i think the front strap had been loosened already, but cant remember).

 

[winston1]

My YM2002D has the clutch safety switch.

 

[careyo63]

FWIW the YM2500 has one also.

Carey

 

[clemsonfor]

Proved me wrong, i guess yall cant run over your self starting the tractor while off of it?

 

[Smoody]

YM2001 has clutch safety switch as well. Can't start the tractor at all off it, unless you hold the clutch down far enough by hand to disengage the safety switch, still not recommended.

 

[deepNdirt]

I was going to say that I'm sure my 1700 doesn't have the clutch safety feature although have heard of what your talking about California, on other tractors, I usually when putting my tractor up I'll shift it into neutral drop the bucket and box down, lock in the e-brake and then shut it down and turn the switch off and I do this religiously, although one time I was working on connecting the hydraulic line to the reservoir having to move the shifter out of my way, when I was through I went to start the tractor and luckily for me the loader bucket and box scrape was down to stop it enough for me to realize it was in gear, as I said this tractor can start up very quickly after the 1st initial start but I didn't give it a chance, and really should be a safety device such as you mentioned on any tractor, Heck there is one on my wifes Cadet lawn tractor,

 

[Smoody]

you could always add the safety feature to any yanmar im sure. anyone done that?

 

[winston1]

Well here you go. Yanmar Tractor Parts: CLUTCH SAFETY SWITCH _ There are also brackets available for different models.

 

[careyo63]

I doubt thats a big sales part for the money Maybe in texaco. Here's a cheap and easy fix. Connect the wires together I ALWAYS SHAKE My GEAR SHIFTER To Make sure it's in Neutral. And With Good parking brakes applied it shouldn't move or even start for that matter.

 

[California]

can't see it in the schematic .

Safety Start Switch. Left-center in the schematic. Black/white wire tracers. It is a solenoid the size of a golf ball mounted above where the clutch rod goes into the bell housing, and the clutch linkage includes a tab to push the plunger up.

Maybe it's just on US Yanmars? I thought it was in the UTDA spec.

 

[normde2001]

No no no guys, I suspect ALL Yanmars were all born with the clutch safety switch, (some have been by-passed), just never heard of the thermostart being activated in the start position when the clutch is disengaged, (switch open).

 

[Gary Sweat]

No no no guys, I suspect ALL Yanmars were all born with the clutch safety switch, (some have been by-passed), just never heard of the thermostart being activated in the start position when the clutch is disengaged, (switch open).

YM1900 does not have a clutch safety switch. Doesn't show one in the electrical diagram. The only safety item this tractor has is the operator and sometimes I am not sure about him

 

[deepNdirt]

No no no guys, I suspect ALL Yanmars were all born with the clutch safety switch, (some have been by-passed), just never heard of the thermostart being activated in the start position when the clutch is disengaged, (switch open).

Sorry normde, it is not my intent to try proving your wrong I'm sure you know way more than I do when it comes to Yanmar tractor,
its I'm just trying to come up with a logical answer for both of us, I cannot argue the fact that my ignition switch might have been replaced in the past, only that I know it will only turn one way, ( to the right ) and that it will start faster if I let it sit on run for 10 seconds before attempting to start it,
here is something I found from Hoye tractor parts, this is to be an ignition switch diagram for my 1700