Sputters when Full trottle applied (Kawasaki 18 HP)(JD)

   / Sputters when Full trottle applied (Kawasaki 18 HP)(JD) #1  

topolgwc

New member
Joined
Nov 11, 2025
Messages
3
Location
Ontario, Canada
Tractor
John Deere 325
until I really warm the old girl up. When I go full trottle(mower deck engaged), It will reduce revs and sometimes stall. once hot..all ok
 
   / Sputters when Full trottle applied (Kawasaki 18 HP)(JD) #2  
until I really warm the old girl up. When I go full trottle(mower deck engaged), It will reduce revs and sometimes stall. once hot..all ok
Welcome to TBN
Sounds normal to me.

Richard
 
   / Sputters when Full trottle applied (Kawasaki 18 HP)(JD) #3  
What model of Deere is this motor in?
Is this new problem that developed suddenly?
Does it have a separate choke lever? If yes if you apply a little choke does it run smoother?
 
   / Sputters when Full trottle applied (Kawasaki 18 HP)(JD)
  • Thread Starter
#4  
What model of Deere is this motor in?
Is this new problem that developed suddenly?
Does it have a separate choke lever? If yes if you apply a little choke does it run smoother?
325. has developed slowly. when cold it stalls . when fully warmed , she hestitates a little, but goes to full throttle speed.
 
   / Sputters when Full trottle applied (Kawasaki 18 HP)(JD) #5  
Found this on another site:

I have a JD 325 with a 18 hp v-twin engine. Tractor runs great when mower is not engaged. Sometimes when I engage the mower, it will run fine for a few minutes and then all of a sudden it will start losing power/run rough and I will have to slow to a crawl to prevent killing the engine.

I went ahead and ordered an ignition coil

It worked.....thanks a million guys!!! I purchased one of these https://www.ebay.com/itm/114197947568 (Kawasaki part no. 211717034) and before I installed it, I ran the mower until it started running rough. I then turned it off, pulled the right spark plug wire off, turned it back on and it started right up again. I did the same thing with the left spark plug wire and it would not start, so I new it was the right ignition coil that was bad. Replaced it and it runs like a champ! Thanks again guys for all your help!!!


This could be the problem.
 

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