My Yanmar 2620

[wmcelwee]

But now we have bigger problems. When I bought it, it started and ran fine for the first few days of use. Since then it has become harder to start and hasn't run well at all. This issue has progressed and quickly gotten worse. Now, if I can get it to start (which takes many attempts).....sometimes it will run for a few minutes then die, without starting again until it rests a bit....but other times it will run well enough to drive it about ten feet....but without enough power to even pull itself up on the trailer so I can take it to the shop I purchased it from (they have a good reputation and I'm not concerned about them just putting a bandaid on it and sending me on my way).

It also idles high, around 1500, which I'm sure is just an idle screw problem.

While starting/trying to start it puts out white smoke, which I believe is unburned fuel?? Then once it fires up theres a small amount of black smoke, then it clears up. It will smoke again when turning the throttle up.

There doesn't appear to be any fuel leaking around the injectors.

Ideas? Major concerns?

 

[Scrambler82]

I don't follow all of the Tractors and Loader and their capacity, but my Mahindra Max28, has a factory spec of approximately 1400 lbs. of lift on the FEL and I have trouble picking up some loads but when it comes to dirt, stone, or other loose materials, I find the FEL Bucket is not deep enough.
I have considered a used and/or new larger FEL Bucket but price is restrictive, and I am not sure what other changes may be needed.

I have started collecting some 1/4" Steel Plate from the local recycling yard, I am looking for 4 to 6 inches of width and in 60 inch lengths.
With these pieces of scrap steel, I will be adding approximately 4 to 6 inch to both sides of the FEL Bucket and approximately 6 to 8 inches on the top edge to reduce over spills.
I am not trying to increase the capacity, although I think it will allow for a better fill, I am more interested in stopping the spill overs.

So where am I going, maybe the OEM sized Bucket is the right size as long as you can add some more height to the sides and top edge !

A slight increase to the FEL pressure can off set the increased weight of both the added steel and the added fill in the bucket.

AND the price of the steel and the welding will be less than the a new larger FEL Bucket.

Just thinking out loud, sometimes too far outside of the box... LoL, hope it helps !

p.s. Have you added a fuel system cleaner ?

 

[winston1]

Have you used any starting fluid on it? Could be running on less than 3 cylinders. If you can get it running long enough to loosen the injector line slightly at the injector you can probably find out which cylinder or cylinders is not firing. Also see if you are getting fuel to that cylinder.

Could be the little sticker on your loader belongs to this company. They might not have manufactured it but rather just sold it. Inventory | Apple Farm Service Inc.

 

[wmcelwee]

Have you used any starting fluid on it? Could be running on less than 3 cylinders. If you can get it running long enough to loosen the injector line slightly at the injector you can probably find out which cylinder or cylinders is not firing. Also see if you are getting fuel to that cylinder.

Could be the little sticker on your loader belongs to this company. They might not have manufactured it but rather just sold it. Inventory | Apple Farm Service Inc.

Yea I looked up that company, probably the case.

No, never used any starter fluid.....and the running on two cylinders thing sounds about right. I'll look into the injectors tomorrow.

 

[YanmarFever]

Koyker Loader made in U.S.A

Also change your fuel filter, it sounds like water is is getting into the pump ect.

Koyker Manufacturing

 

[wmcelwee]

Koyker Loader made in U.S.A

Also change your fuel filter, it sounds like water is is getting into the pump ect.

Koyker Manufacturing

Thanks for the Koyker info.

Tomorrow I plan to check all fuel lines, filters, injectors, etc., starting at the tank and work my way to the injectors. Hopefully I can cure it before I have to take it to the shop and spend money I don't have.

 

[wmcelwee]

Well it turns out the fuel tank was stopped up. Took a pipe cleaner to the "drain" and bled the lines, running like a champ now.

However the alternator isn't charging the battery........unsure if I knocked something loose or it just crapped out.

Any help would be very appreciated, TIA.

 

[CoyPatton]

Well it turns out the fuel tank was stopped up. Took a pipe cleaner to the "drain" and bled the lines, running like a champ now.

However the alternator isn't charging the battery........unsure if I knocked something loose or it just crapped out.

Any help would be very appreciated, TIA.

If it was working prior to your checking out the fuel system, I suggest checking to be sure all electrical connection are solidly in place. These tractors are tight quarters to work on. Reaching under the tank may well have caused an already loose connection from vibration to lose contact.
Also if you checked injectors same process with the dyno.
2 places I would check first are the dyno and the regulator located on the firewall.

 

[wmcelwee]

Can anyone help me identify which model Koyker loader I have? Or should I contact them directly?

 

[kenmac]

hard to say, 140,or 150. Those folks at Koyker aren't a real friendly bunch to speak with.
They may assist you and they may not. Depends on what day and time you call