[Ronc]

After repeated problems of a sticking valve causing the Mule to (barely) run on one cylinder, my local dealer made a modification which he said would solve the problem. Now the problem has not only continued, but became worse recurring twice within 6 months. Is there a solution or should I dump it and buy somehting else?

 

[Stormdragon]

Is it new? If so I'd look into getting the valves and or head replaced under warranty. If it's used... I'd want to know why the valve was sticking. Is it possible it's bent? Have you asked about any recalls for sticking valves?

 

[zedx11]

the valve springs are so weak on those things that they usually end up with the push rod unseating themselves. making it run on one cylinder.

 

[Ronc]

No Stormdragon, it is not new but has been "repaired" several times.

Thanks Zedx11, I will check to see if the pushrod has become unseated. I tried working on it myself the first time the problem occurred and broke the valve spring.

I was hoping someone would report that they had a similar problem but it was successfully fixed by xyz dealership and that the solution was published in Kawsaki bulletin #___ for other dealers.

Ron

 

[zedx11]

usually it is the front cyl. I've seen it on a few. check to make sure the pushrod isn't bent. adjust the valves. you have to make sure you are within tolerance, like I said, the valve springs are weak and you can push the valve down with a feeler gage if you are not careful.

 

[zedx11]

did they tell you what the mod was?

 

[Ronc]

I did not get details at the time, but the modification was supposed to increase the clearance through the valve guides.

 

[zedx11]

they probably should have replaced the valves, and pushrods, done a valve adjustment