YS 240 TB transmission question - Snowblower Forum : Snow Blower Forums
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post #1 of 23 Old 11-17-2013, 05:54 PM Thread Starter
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YS 240 TB transmission question

I am in the midst of putting a Ricky back together, but I do not have the owners manual or service manual.

Does anyone know what lubricant it calls for in the transmission/traction drive unit, and how much?

Any help would be much appreciated.

Garage:
MTD....2 stage(modern 8.5 HP) not my favorite
Honda HS622 TA-B - acquired at an auction- nice machine for it's size.
Toro S-140- Picked it up on trash day... it runs, sort of.
Yamaha YS 240 TB "Ricky" latest Craigslist find- on the bench now.
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post #2 of 23 Old 01-14-2015, 09:52 PM
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DB
Did you ever get yours working?
This one came up in my area today. Ad says it's in great shape with nothing wrong.
Ricky in Utah
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post #3 of 23 Old 01-14-2015, 10:04 PM Thread Starter
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No.... I'm still trying to figure the trans out, when I get the time.

I read over on another thread, a guy that goes by JnC just bought one, and he got a service manual. I PM'ed him to find out where he found it, in hopes that they might have more. It would take all the guess work out of it.

Garage:
MTD....2 stage(modern 8.5 HP) not my favorite
Honda HS622 TA-B - acquired at an auction- nice machine for it's size.
Toro S-140- Picked it up on trash day... it runs, sort of.
Yamaha YS 240 TB "Ricky" latest Craigslist find- on the bench now.
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post #4 of 23 Old 01-15-2015, 03:27 PM
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Quote:
Originally Posted by db9938 View Post
No.... I'm still trying to figure the trans out, when I get the time.

I read over on another thread, a guy that goes by JnC just bought one, and he got a service manual. I PM'ed him to find out where he found it, in hopes that they might have more. It would take all the guess work out of it.
Unfortunately the gentleman only had one of the manuals. Here are some pages from the owners manual.

The "window sticker" i guess





owner's manual








Transmission oil change, seems like recommended oil is just 5W-30, nothing fancy





Electronic schematic



and here the page with all the pertinent info to specifications.



hope this helps.
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post #5 of 23 Old 01-15-2015, 05:00 PM Thread Starter
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Thanks for checking, the oil capacities and types I was able to pieces together. The electrical schematic is always good to have. I am surprised that there was no mention of the fluid type and amount, for the actual drive unit. There is actually a sealed section within the transmission, that selects the speed and direction, and it has it's own fluid. If you look on the right side of the transmission, you will notice a sight glass and a fill plug. The only suggestion I got, was to use John Deere general hydraulic fluid.

To give you an idea, of how far I had to tear this down, and maybe indication of what you would have to face, if anything where to happen.
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Garage:
MTD....2 stage(modern 8.5 HP) not my favorite
Honda HS622 TA-B - acquired at an auction- nice machine for it's size.
Toro S-140- Picked it up on trash day... it runs, sort of.
Yamaha YS 240 TB "Ricky" latest Craigslist find- on the bench now.

Last edited by db9938; 01-15-2015 at 05:05 PM.
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post #6 of 23 Old 01-15-2015, 05:34 PM
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You weren't kidding when you said you have the whole machine ripped apart. I'll get to that point eventually as well. I had read somewhere a common issue with the transmission, would you care to elaborate what that issue is? My machine surges every now and then, beside a carb rebuild can the fuel pump also be rebuild, or is it usually replaced? I'll post fluid type soon for the transmission, I am sure there I mention of it in the service manual.

Last edited by JnC; 01-15-2015 at 05:35 PM.
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post #7 of 23 Old 01-15-2015, 09:01 PM
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Service manual at ebay

YAMAHA SERVICE MANUAL YS240TBP LIT196160041 PRINTED 1990
Glad to know I can find one for $16 if I wanted one.
RE the trans fluid. in the document you photographed above it says
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Last edited by dbert; 01-15-2015 at 09:05 PM.
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post #8 of 23 Old 01-15-2015, 09:28 PM Thread Starter
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Quote:
Originally Posted by JnC View Post
You weren't kidding when you said you have the whole machine ripped apart. I'll get to that point eventually as well. I had read somewhere a common issue with the transmission, would you care to elaborate what that issue is? My machine surges every now and then, beside a carb rebuild can the fuel pump also be rebuild, or is it usually replaced? I'll post fluid type soon for the transmission, I am sure there I mention of it in the service manual.
I saw the transmission fluid in your pics as being 5w-30. The drive unit within the transmission is a whole other matter.

This is the part that broke on mine. It retains the reluctor ring within the drive unit. It was buried. #3 on the diagram.

http://www.boats.net/parts/search/Ya...203/parts.html

The fuel pump is no longer available, sadly. And from what I noticed, it only has one part to go wrong, the diaphragm. And that's not available....I even tried to track down who made the unit, as it does not look like a Yamaha part.

The carb I believe, you can still find some parts too.

My take on this machine, as I have dug into it, was that for Yamaha was not making money on this machine. The amount of cast and machined parts that are contained in the transmission, had to make this thing a loss leader.

Especially when I compare this to other machines I've worked on, that can get the same job done, with less refinement or parts.

But I love a challenge, and this beast is just that.
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Garage:
MTD....2 stage(modern 8.5 HP) not my favorite
Honda HS622 TA-B - acquired at an auction- nice machine for it's size.
Toro S-140- Picked it up on trash day... it runs, sort of.
Yamaha YS 240 TB "Ricky" latest Craigslist find- on the bench now.

Last edited by db9938; 01-15-2015 at 09:33 PM.
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post #9 of 23 Old 01-15-2015, 09:37 PM Thread Starter
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Quote:
Originally Posted by dbert View Post
Service manual at ebay

YAMAHA SERVICE MANUAL YS240TBP LIT196160041 PRINTED 1990
Glad to know I can find one for $16 if I wanted one.
RE the trans fluid. in the document you photographed above it says
Dbert, I haven't looked in a while. And man did I just miss that one. Thanks for looking, I need to be more vigilant with keeping an eye out for one.

And from the picture, it's showing the rear of the machine, which is not where the drive unit is located. The drive unit is on the right side. It's under the air cleaner box.
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Garage:
MTD....2 stage(modern 8.5 HP) not my favorite
Honda HS622 TA-B - acquired at an auction- nice machine for it's size.
Toro S-140- Picked it up on trash day... it runs, sort of.
Yamaha YS 240 TB "Ricky" latest Craigslist find- on the bench now.

Last edited by db9938; 01-15-2015 at 09:42 PM.
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post #10 of 23 Old 01-15-2015, 09:46 PM Thread Starter
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I will have to say one thing about these machines, I wish I could find a bulk supply of this fuel line that they used. After cleaning mine up, with some windshield fluid, it looked brand new, and was exceptionally supple without being gummy.

Garage:
MTD....2 stage(modern 8.5 HP) not my favorite
Honda HS622 TA-B - acquired at an auction- nice machine for it's size.
Toro S-140- Picked it up on trash day... it runs, sort of.
Yamaha YS 240 TB "Ricky" latest Craigslist find- on the bench now.
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