1725 takes a while to start

[BubbaSam]

I have a 15 year old Kioti which is kept inside when not in use. My original Interstate battery lasted 14 years. I noticed over time it took longer to start... but in the end it just wouldn't. Put a new battery in it (same exact make/model) and it starts almost IMMEDIATELY... less than one full engine cycle. Starts now like it did 15 years ago. Fuel or Battery would be my guess.

On another note... I noticed some conversation about the glow plug. My question is when I turn my key on the light comes on. Do I NEED to let the glow plug light go off during summer months before starting or can I just go ahead and start it? It seems in the conversations that you do NOT have to wait until the glow plug goes off.

 

[5030]

Batteries have to be the most neglected component on any unit and just because the unit is new, don't mean the battery is. Think I'd ask the dealer to replace it with another one.

 

[Dmacleo]

How do you post videos on here?

can't upload videos here, just upload to youtube (if you have login there) and then post link here.

 

[WranglerX]

I have a 15 year old Kioti which is kept inside when not in use. My original Interstate battery lasted 14 years. I noticed over time it took longer to start... but in the end it just wouldn't. Put a new battery in it (same exact make/model) and it starts almost IMMEDIATELY... less than one full engine cycle. Starts now like it did 15 years ago. Fuel or Battery would be my guess.

On another note... I noticed some conversation about the glow plug. My question is when I turn my key on the light comes on. Do I NEED to let the glow plug light go off during summer months before starting or can I just go ahead and start it? It seems in the conversations that you do NOT have to wait until the glow plug goes off.

Not sure how your tractors GP's are wired/controlled.... But light may never go off if there is not a timer on GP circuit..... MY GC 1715 manual says hold key at GP position for about a 10 count then start.... I would still check GP's and associated controls. .. Even in mild weather 70°f. mine starts better, faster when I use GP's.... IF GP"S are deemed working properly, then its fuel or battery....

 

[crashz]

My Kubota doesn't need glow plugs until 40 degrees (F) or so. Always puffs a bit of black smoke (normal for a L2501). But my original Kubota battery was not strong enough to start it in cold weather. I could either use the glow plugs or crank it, but not both. Popped in an Interstate with double the CC amps and its been perfect. But as others have noted, you may not be running it long enough to charge up the battery.

Since the tractor is new, I would check over a few things, then talk to the dealer about finding the problem:
1 - Try charging the battery.
2 - Take a look at the air filter as mentioned above.
3 - How is the oil? Level and condition. I wonder if the dealer put a cheap 15w-40 that has thickened up? Doubt this would prevent starting, but something to check.
4 - Does your fuel filter have a clear bowl? How does it look and do you see any water or sediment at the bottom?
5 - Check the fuel line for leaks or loose fittings. A very small amount of air in the system can cause these symptoms too.

 

[DieselBound]

Ask your dealer what things to check for. This puts the issue on their radar for future considerations/discussions. Might be that they are aware of possible idiosyncrasies and can point you in the right direction (or ask you to bring the tractor in [should be under warranty, no?]). If you do contact them I'd look to follow up if you solve the issue: always good to close out any issues.

How quickly does the motor turn over/spin? If it's sluggish then it's likely in the starting circuitry- electrical (battery, starter). Check battery health: charge up (disconnected from the tractor) and allow to rest (12 hrs or so) and then test voltage (should be 12.5V or more). Starter issues are generally due to age, so, though possible, not probable.

Note that GPs operate under a specific temperature. If you're just a bit over that temperature (it's low, but not low enough to activate the GPs) the engine will always be a little slower to start, though it shouldn't be all that much slower.

IF the cranking speed is good then it _could_ be GPs (if cold) OR, my guess, a fuel issue. Assuming, that is, it runs fine once started. Check GPs for resistance: test each separately- should all be within an ohm or so. Fuel-wise, it could be either air or vacuum. Check all fuel delivery lines for being tight and look for any signs of leakage (air molecules are smaller than fuel molecules in which case air leaks are almost impossible to "see"). As regards "vacuum," loosen up the fuel cap- could be that the fuel cap (or other vent) is plugged; this is least likely IF the tractor runs fine once started*.

*I'd encountered issues with ice pellets forming (water in tank due to crappy locking fuel cap letting in rain water!) and blocking the fuel line coming out of the tank on my Kioti.

I didn't mention anything to do with the air intake as it seems like this has been checked?

 

[Dmacleo]

Note that GPs operate under a specific temperature. If you're just a bit over that temperature (it's low, but not low enough to activate the GPs) the engine will always be a little slower to start, though it shouldn't be all that much slower.

GC series are right from key to glow plug buss, key side powered plugs are powered.
just checked some electrical stuff on mine, actually double checked this today (78 deg out) making sure no voltage drops.

 

[Skeletor]

You need to post a video so we can see exactly how long it's cranking, a puff of black smoke at startup is normal

Id love to but I can’t figure out how to.

 

[Dmacleo]

Id love to but I can’t figure out how to.

can't upload videos here, just upload to youtube (if you have login there) and then post link here.

like this

 

[Skeletor]

It was 90 degrees out when I did the video. Battery tested out to 390 cranking amps and was resting at 12.86volts. I used it a lot yesterday.it has always started but from what I’ve seen on other videos theirs fires right up.

 

[Dmacleo]

I really don't see an issue. mine, while its a 2010 with almost 500 hours on it, rotates abut 6-8 full turns or so then fires up and runs.

edit: got a 2021 GC1723 with 104 hrs on it sitting here. same start times.
2021 GC1725MB next door with 120 hours....same thing.

 

[WranglerX]

It was 90 degrees out when I did the video. Battery tested out to 390 cranking amps and was resting at 12.86volts. I used it a lot yesterday.it has always started but from what I’ve seen on other videos theirs fires right up.

Seems about right.... About the same as my GC 1715... Watching video it takes about 3 seconds of cranking to start (about 9 second to 12 second mark in video)....

 

[JWR]

It was 90 degrees out when I did the video. Battery tested out to 390 cranking amps and was resting at 12.86volts. I used it a lot yesterday.it has always started but from what I’ve seen on other videos theirs fires right up.

If you did not use the glow plugs that [video] seems very normal to me. Exactly what my BX2200 would do. But if that little yellow coil symbol upper left means your glow plugs are on for that period of time -- then there is something not quite right.

If that little yellow coil symbol, upper left, means your glow plugs are SUPPOSED to be running for that example period of time in the video then I'm betting there is something ailing & the glow plugs are not really "on." Either way, I'm saying if the glow plugs are really on it should start faster than that.

My MF2660 with a larger 4cyl Perkins starts much faster than that in warm weather without glow plugs but 4 Kubotas I have DO NOT.

I my opinion you use the glow plugs for every "first start" regardless of outdoor air temperature. A very short glow plug time in warm weather and longer in cold weather. Inversely proportional to the temp. I think most people gain experience and a feel for what seems optimum for them. Try just a few seconds of glow plug time and then crank. Play with the amount of time until you are happy with how quick it starts. None of this is critical or to make a big deal of but you are wearing out a lot more things cranking that engine than you are letting glow plugs run a few seconds ... over the life of the machine.

 

[Skeletor]

If you did not use the glow plugs that [video] seems very normal to me. Exactly what my BX2200 would do. But if that little yellow coil symbol upper left means your glow plugs are on for that period of time -- then there is something not quite right.

If that little yellow coil symbol, upper left, means your glow plugs are SUPPOSED to be running for that example period of time in the video then I'm betting there is something ailing & the glow plugs are not really "on." Either way, I'm saying if the glow plugs are really on it should start faster than that.

My MF2660 with a larger 4cyl Perkins starts much faster than that in warm weather without glow plugs but 4 Kubotas I have DO NOT.

I my opinion you use the glow plugs for every "first start" regardless of outdoor air temperature. A very short glow plug time in warm weather and longer in cold weather. Inversely proportional to the temp. I think most people gain experience and a feel for what seems optimum for them. Try just a few seconds of glow plug time and then crank. Play with the amount of time until you are happy with how quick it starts. None of this is critical or to make a big deal of but you are wearing out a lot more things cranking that engine than you are letting glow plugs run a few seconds ... over the life of the machine.

I ran the glow plugs for maybe 10 seconds before I tried to start it. Actually that was the second time I hit the glow plugs. I went to make the video and the tractor was in gear and didn’t realize it. I did about a 10 second cycle then hit the key and realized it was in gear so I started it all over again for the video.

I daily drive a 2003 vw tdi so I know all about glow plugs. Even today it being 90 out the plugs cycled for a few seconds. I agree without the plugs it would me much longer to start. It would never do it in the real cold without the glow plugs.

 

[32 chev]

Try starting with the throttle at about one quarter to one third up from idle

 

[DMW]

60°F, cold start. No glow plugs. 17 years , 900hrs. Recent Yellow Top Optima (great deal on a factory 2nd). Starts within a 1/2 second of the OPs video. After starting, the engine still retains a lot of heat, making for quicker, nearly instantaneous restarts. Depending on how long/hard you run, the effect may last for hours, until the engine completely cools. Don't believe everything you see on the internet.

There is nothing to be concerned about.

 

[hube2]

Like someone else said, bump up the throttle. When I'm going to park mine for a while I shut it down with the engine somewhere between 2 and 2.5K RPM. That is where mine starts the best.

Other than that it seems about right to me for a cold engine with the throttle at minimum, even if it is 90 outside.

 

[Skeletor]

Like someone else said, bump up the throttle. When I'm going to park mine for a while I shut it down with the engine somewhere between 2 and 2.5K RPM. That is where mine starts the best.

Other than that it seems about right to me for a cold engine with the throttle at minimum, even if it is 90 outside.

I don’t think I had the throttle at minimum. I’ll try different throttle positions to see if there is any difference.

I used it a lot this weekend I moved a 22 ton load of fill I had delivered to its new home. Man it dosent go as far as you think it’s gonna. Probly gonna need 2-3 more loads or more depending how far I go. Little tractor did it fine it just took a lotta buckets.

 

[hube2]

If it's already been running mine starts right up on the first turn. Didn't realize that it was already warm. I generally don't need to run GPs at all if the engine is already warmed up. It only takes a few turns when it's cold after sitting for several hours.

 

[Skeletor]

If it's already been running mine starts right up on the first turn. Didn't realize that it was already warm. I generally don't need to run GPs at all if the engine is already warmed up. It only takes a few turns when it's cold after sitting for several hours.

It always cranks for a bit even if I just shut it down.