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Yamha Yt6800


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#1 HDWildBill ONLINE  

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Posted August 19, 2013 - 08:40 PM

A customer brought in a Yamha YT6800 tractor today.  I had not heard of a Yamaha tractor before so I thought I would share some pictures with you and see if any of you have any experience with these.  It is a non-runner so I hope to get it on the table tomorrow and start to go over it.

 

The customer said his parents bought it new back in 89 (I think)  and they used it up to a few years ago when he loaned it to a friend.  The friend left it out in the weather and didn't take care of it. 

 

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#2 Texas Deere and Horse OFFLINE  

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Posted August 19, 2013 - 11:01 PM

Bill, It looks like a good little mower, hope you don't nave too much to get it up and running. Keep us posted on how it goes.


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#3 KennyP ONLINE  

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Posted August 20, 2013 - 06:19 AM

Nice looking mower. Even a Yamaha engine?


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#4 jms180 ONLINE  

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Posted August 20, 2013 - 06:24 AM

Thanks for sharing pictures. It looks like still in good shape. You will have it running in a short time.
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#5 JDBrian OFFLINE  

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Posted August 20, 2013 - 10:13 AM

I've only ever seen 1 for sale here. I guess they wanted to try power equipment like Honda did. I don't think the tractors caught on but there are a lot of Yamaha generators out there.


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#6 Cvans ONLINE  

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Posted August 20, 2013 - 10:58 AM

They come up on Craig's list in Minneapolis once in awhile. Seem to hold their value quite well. I wonder if parts support is a problem as these are getting older now?


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#7 Utah Smitty OFFLINE  

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Posted August 20, 2013 - 12:58 PM

Yamaha made a couple of different models... very well made, use Yamaha engines.  I saw a YT3800 I think it was at a repair shop near my home.  It had a horizontal shaft single cylinder of about 13 hp, and shaft drive. The Hydro was leaking like a sieve and he decided to scrap it... the engine was the same as used on some Yamaha generators, etc. Parts for the rest of the tractor are practically impossible to find.

 

Smitty


Edited by Utah Smitty, August 20, 2013 - 01:00 PM.

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#8 HDWildBill ONLINE  

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Posted August 20, 2013 - 05:47 PM

Got her running! :D   The air cleaner is shot and it has the wrong plugs.  I did a compression check and the the right cylinder only has 103 PSI average but the right has 139 PSI average.  I had to adjust the throttle /  choke linkage and governor linkage to get the carburetor to work correctly.  At first it just turned over with noting so I shot some starter fluid down the throat and she came to life.  I was expecting her to fire up then die but she didn't she stayed in there and the engine sounds good.  I fired her up several times today and she came to life each time with out the starter fluid.  Then I took her out and drove her around a little bit to see how the hydro worked and if the PTO would engage.  All is fine.

 

I called my local parts house to see if they could get the air filter and as Smitty said parts are going to be hard to find.  But I have found a site on line that is supposed to have parts for the tractor. That Yamaha is a really nice tractor and has held up well for as old and abused it is..

 

Now I get to work on a Chinese ATV to see why it won't start. :(


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#9 jms180 ONLINE  

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Posted August 21, 2013 - 06:01 AM

Great work Bill now on to the next challenge good luck
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#10 Cvans ONLINE  

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Posted August 21, 2013 - 10:11 AM

You might be able to bring the compression up on the low cylinder by resetting the valve clearances.

I have had several opportunities to work on those Chinese ATV's and turned them all down. Ignition problems seem to be common.  


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