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Throttle Cable Won't Stay On 318


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#1 abrasv OFFLINE  

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Posted October 06, 2014 - 08:41 PM

Went to mow yesterday and when I pushed the throttle cable to the fastest position it would run there for a few seconds and then slowly slide back to about half throttle. Did that every time I moved it back to fast. Took the air cleaner off and watched it and I could see some part (not sure what it is called) that had a spring on it and looked similar to a vacuum connection on an old car distributor. About a week ago I cleaned and sprayed WD-40 on all the moving parts under the air cleaner. (Guess I should have left well enough alone).

Anyone have an idea about what is causing this?

Thanks,

Jim



#2 HDWildBill OFFLINE  

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Posted October 06, 2014 - 08:54 PM

Some pics might help identify what you are talking about.



#3 abrasv OFFLINE  

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Posted October 06, 2014 - 09:08 PM

I'm out of town right now but when I get back Friday I'll take a couple pics of the part I'm talking about.



#4 superaben OFFLINE  

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Posted October 06, 2014 - 09:09 PM

I think it is probably in the handle.  Most of these throttle handles have a rubber washer (or plastic, depending on age) that keeps the lever "tight" without being "snug".  Some handles have nuts and bolts to allow you to tighten it up. 

 

I can't remember what Deere has on the 300 series.  I'll check my 316 and see.

 

Ben W.


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#5 GTTinkerer OFFLINE  

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Posted October 07, 2014 - 05:51 AM

Maybe spray some carb or brake cleaner on the friction washer to clean off the WD40.


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#6 WNYTractorTinkerer OFFLINE  

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Posted October 07, 2014 - 06:00 AM

I think it is probably in the handle.  Most of these throttle handles have a rubber washer (or plastic, depending on age) that keeps the lever "tight" without being "snug".  Some handles have nuts and bolts to allow you to tighten it up. 

 

I can't remember what Deere has on the 300 series.  I'll check my 316 and see.

 

Ben W.

 

And if you are lucky enough to have a non adjustable handle, use pliers to bend a little kink in the cable when the thing is in idle position.  (whichever side is out of the cable housing) and it will make cable movement more rigid..  


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#7 13jac1316 OFFLINE  

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Posted October 07, 2014 - 06:03 AM

same thing happened with my 316 we changed the spring 


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#8 abrasv OFFLINE  

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Posted October 12, 2014 - 08:41 PM

Took a look at it Friday and saw there was a nut and bolt on the handle. It was already pretty snug but went ahead and gave it another small turn and that fixed it.

Thanks all,

Jim


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