Hello people I have a John Deere X279 with a water-cooled 2 cylinder engine and have the problem that the engine runs restless at medium and sometimes also at full speed My question is now, what can this lie on? Air filter is new Spark plugs are also quite new and the pipe filter is also clean… What I noticed was who I had 1 cylinder (no matter which one) to pull out (ignition plug) it actually runs quite normal Mfg stoodi