Got an 2010 mule 4010 thats is getting fuel in to oil and its an EFI model...has anyone had this problem before?Cranks an run great until gets fuel back into oil then loads up an wont idle.... going to check fuel pump an see if to much,,its all stock...no aftermarket stuff.

 

I removed the throttle body today an notice the flap was stuck open an lil bit cleaned shaft an reassembled but hadnt had time to run yet to see it that was enuff to make the tps read correct location of the throttle shaft to cause the injectors to pump more fuel at idle which could cause an rich mixture an flood out while idling...

 

I cleaned the throttle shaft an this fixed this problem

 

The 4010 I repaired earlier started doing the same thing again after bout 7 months..I cleaned throttle body again an this fixed the idle problem then I did some research an Kawasaki has an emission kit for this problem its reroutes the pvc stuff....The reason they did this is the secondany air is causing excess engine oil from pvc system to blow by an causing the throttle body to get dirty whichs causes sticky throttle shaft an making butterfly not to close all the way which causes an false reading from tps to injectors an the tps thinks throttle pedal is push which sends more fuel to injectors which cause excessive fuel into throttle body an get into the oil.....

 

Sorry no one has responded. I had just looked. Great you resolved the issue and kept others informed on what the problem/solution was ! Folks will google the problem and your posts will help them greatly...Good job man!

 

Its good to know that you were able to solve it and share your experience with us. It would be a great reference in the future.