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Couple Of Questions!

carburetor hydraulic fluid

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#1 Bigfoot OFFLINE  

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Posted September 22, 2012 - 08:39 AM

This 1989 JD 318 with the LX790 engine seems to run a little rough. I'd like it to run smoother. However their doesn't seem be any carb adjustments, other than idle. I'll change out the plugs and see what that does, I've choked the engine down slowly to see if it starts to smooth out, but it doesn't. So Im guessing it may be running rich? I believe the engine has electronic ignition?
Also what type of hydro fluid does John Deere require? Automatic trans?

#2 HDWildBill OFFLINE  

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Posted September 22, 2012 - 09:22 AM

If you haven't already done so, put some sea foam in you gas and see if that doesn't help smooth out the engine. make sure your air cleaner is clean. I would also put some new plugs in. If that doesn't do it then you may need to pull the carb and do a good cleaning on it.

#3 Cat385B ONLINE  

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Posted September 22, 2012 - 09:55 AM

On the hydro, it depends on what is in there now. If its red, you have type F tranny fluid. If it's brown or clear in color, it's a JD hydraulic oil. JD Low Viscosity Hy-Guard. Or referred to as J20D.

Do not substitute one for the other, it does bad things to tranny.

Edited by Cat385B, September 22, 2012 - 09:56 AM.


#4 Bigfoot OFFLINE  

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Posted September 22, 2012 - 11:49 AM

Yes, it's red in color, so I'll pick up some type F trans fluid. Got to get some paint today so I'll get a couple of plugs also. Talking about plugs the one I pulled out to look at, was white at the end and not carboned up, didn't think of that on my last post!
Thanks for the replies, Bigfoot





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