criddlesperger
Member
got the tractor today. does great except it has a miss at idle 800rpm. now i know why the tractor was always warmed up when i looked at it, any suggestions. thanks
got the ym2010
- Thread starter criddlesperger
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284 International
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- Joined
- Jun 28, 2010
- Messages
- 1,464
- Tractor
- International Harvester 284
Congratulations on your purchase! Do you have any photos yet?
The generic advice you'll likely hear will be to bleed the injector and fuel lines from the tank to the injectors. Hoye has a good description here: Yanmar Tractor Fuel Filter Change
and continuing here: Yanmar Tractor Fuel Bleeding Procedure
Since you describe it as being in good condition and with low hours, it's likely a fuel problem. Make sure to look at the lines and connections to and from the fuel filter, as well as the sediment bowl itself and gasket. There have been people report that air has gained access to the system there. Hoye's directions don't specifically mention it, but it's a lot easier to crank the engine by using the decompression lever, and is easier on the starter.
There's some chance that there is low compression, but it's a little bit more involved to test (and fix). I had missing parts on my YM240 that allowed a rocker arm to slide out of place and gave mine a miss, but that's not what you're experiencing, since you say it goes away above idle.
How old is the fuel? Many here have good results using Power Service brand additive. Try fresh fuel with the appropriate amount of additive, bleed the fuel lines, and hopefully that will do the trick.
You should maybe check/replace the fuel and air filters while you're doing this. You'll be dirty anyway, so change the oil and filter. It won't correct the miss but will provide peace of mind. With the hood open and maintenance ongoing, check the coolant and inspect the radiator. Gently wash out the radiator; frequently when mowing, especially, the screen or core of the radiator can get clogged and lead to overheating. You may as well get everything covered. Your tractor will be prepped and ready to go, freshly serviced.
Good luck. Let us know how it turns out.
The generic advice you'll likely hear will be to bleed the injector and fuel lines from the tank to the injectors. Hoye has a good description here: Yanmar Tractor Fuel Filter Change
and continuing here: Yanmar Tractor Fuel Bleeding Procedure
Since you describe it as being in good condition and with low hours, it's likely a fuel problem. Make sure to look at the lines and connections to and from the fuel filter, as well as the sediment bowl itself and gasket. There have been people report that air has gained access to the system there. Hoye's directions don't specifically mention it, but it's a lot easier to crank the engine by using the decompression lever, and is easier on the starter.
There's some chance that there is low compression, but it's a little bit more involved to test (and fix). I had missing parts on my YM240 that allowed a rocker arm to slide out of place and gave mine a miss, but that's not what you're experiencing, since you say it goes away above idle.
How old is the fuel? Many here have good results using Power Service brand additive. Try fresh fuel with the appropriate amount of additive, bleed the fuel lines, and hopefully that will do the trick.
You should maybe check/replace the fuel and air filters while you're doing this. You'll be dirty anyway, so change the oil and filter. It won't correct the miss but will provide peace of mind. With the hood open and maintenance ongoing, check the coolant and inspect the radiator. Gently wash out the radiator; frequently when mowing, especially, the screen or core of the radiator can get clogged and lead to overheating. You may as well get everything covered. Your tractor will be prepped and ready to go, freshly serviced.
Good luck. Let us know how it turns out.
OP
criddlesperger
Member
![DSCN5612[1].jpg](/forums/data/attachments/193/193671-c78f30c9beb778c7bb9031ec0338ac55.jpg)
284 International
Veteran Member
- Joined
- Jun 28, 2010
- Messages
- 1,464
- Tractor
- International Harvester 284
If you already place your photos online at a hosting site, such as photobucket, flicker, or even one of the other sites such as facebook, you can insert the images into a message here. Those sites have step by step instructions, and are simple to use.
After you have them hosted or posted somewhere, when you reply or start a new thread, there is a little icon above where you type that has a triangular mountain shape. It's the one between the envelope and the caption box. If you hold the cursor over it, it will say "Insert Image." You can then cut and paste the URL (web address) from the picture to the "Insert Image" box.
If you have your photos on your computer but not available online somewhere, click on the paperclip icon. It will say "Attachments" if you hover over it. Click on that, and you can then upload pictures from your computer to this site.
Napa has fuel and oil filters that fit. The air filters are of mixed reviews. Some say they work and fit properly, others say they don't, and pass unfiltered air. I choose to support the dealers who help provide the services I use unless there is some immediate and urgent need, as well as ensuring I get parts that fit correctly. That's not meant to be preachy or tell you what to do, of course. I've used parts or filters from Wal-Mart, Napa, a Kubota dealer and Hoye at various points in time. There are other good dealers too.
Did you get any manuals with your new machine? It may have information on how to do these procedures and other specifications or part numbers.
After you have them hosted or posted somewhere, when you reply or start a new thread, there is a little icon above where you type that has a triangular mountain shape. It's the one between the envelope and the caption box. If you hold the cursor over it, it will say "Insert Image." You can then cut and paste the URL (web address) from the picture to the "Insert Image" box.
If you have your photos on your computer but not available online somewhere, click on the paperclip icon. It will say "Attachments" if you hover over it. Click on that, and you can then upload pictures from your computer to this site.
Napa has fuel and oil filters that fit. The air filters are of mixed reviews. Some say they work and fit properly, others say they don't, and pass unfiltered air. I choose to support the dealers who help provide the services I use unless there is some immediate and urgent need, as well as ensuring I get parts that fit correctly. That's not meant to be preachy or tell you what to do, of course. I've used parts or filters from Wal-Mart, Napa, a Kubota dealer and Hoye at various points in time. There are other good dealers too.
Did you get any manuals with your new machine? It may have information on how to do these procedures and other specifications or part numbers.
