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Help - need to get K301 from going over 3600 rpms


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#1 lyall OFFLINE  

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Posted April 07, 2015 - 09:19 PM

Hi all

I am trying to part together a JD 214 for me brother and sister-in-law.

I have taken it all part, cleaned, greased and repaint the whole 214.

I did not take the engine (K321) apart to look at the insides - which I should have.

I put  the K321 in the 214 and got it to run.

It burning oil and blowing oil out the exhaust, needs to be rebiuld.

 

I have a K301 - 12 hp that I rebuild for a spare for me, for me 212.

I do not a have a carb (carter #26) for the K301, so I was trying to use the carb off the K321.

Which is a Walbro adjustable jets #60.  Got the K301 running, but I can not keep the rpms down under 3600 rpms at full throttle.  Go up over 4000 rpms.  Runs great and low and mid range.

 

I think the Walbo is to big for the K301.  From what I can find out the Walbro #60 went on the K321 (14hp) and K341 (16hp) and the Walbro #52 went on the K241 (10hp) and the K301 (12hp)

I do have several Carter #30 carbs that need to be rebuild.

 

Will I have the same problem as with the Walbro #60 carb?

I know the Carter #26 is the best carb for the K301, which I might have to got one.

 

If anybody else have this problem and what did you do to fix the problem.

 

Thanks

 

 


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#2 lyall OFFLINE  

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Posted April 07, 2015 - 09:21 PM

Yes I did adjust the carb linkage and adjusted the governor.


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#3 boyscout862 ONLINE  

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Posted April 07, 2015 - 10:39 PM

Even with too big a carb it shouldn't do that. You may have a vacuum leak or some linkage is wrong. The governor should be trying to shut the throttle butterfly if the rpms go ove 3600 rpm. Recheck the governor and all linkage. Use the manual from our Manuals Section. Speeds like that are going to set off the grenade gears. Good Luck, Rick


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#4 crittersf1 OFFLINE  

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Posted April 08, 2015 - 07:32 AM

Sounds like governor adjustment to me.



#5 JDBrian OFFLINE  

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Posted April 08, 2015 - 10:37 AM

I wouldn't think that the carb size would cause that symptom. The governor should be able to reduce the throttle input all the way to idle in order to bring the RPMs down. I wonder if the linkage parts need to be different due to some physical difference in the 2 carbs. Have you adjusted the max. RPM setting on the linkage?


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#6 lyall OFFLINE  

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Posted April 08, 2015 - 08:16 PM

I tried setting the governor again and check over the Walbro carb again and it still goes over the the 3600 rpms, I would not let it go over the 4000 rpms.

 

So I looks around to find all my Carter carbs and found only the #30s, several of them.  Check them over to see which would be the best one.  Have to get a carb kit for it and the others.  hen I was looks for something and quess what I found.   A Carter carb #26 that a rebuild a while back and forget about it.  It was not where it was to be with the other carbs.

 

I checked it over and set it up.   Put it on the K301 and set the governor to match.   It fired right up and checked to idle - around 1200 rpms.  So I throttled up to full throttle.   checked the rpms and it was running around 3200 rpms,  just how I like to run them.

Played I little with the high speed jet  to see and checked how it sounded.   Took it for a drive around the yard and down the street a few blocks.  Ran great and sounds great.

 

I am happen with the Carter cabs.  I need to rebuild the K321 and the Walbro carb will go on it.

 

thanks for all the help


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#7 MH81 ONLINE  

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Posted April 09, 2015 - 06:12 AM

Still thinking there must've been a linkage difference, but it's good you found the right carb... Problem solved :thumbs:




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