Nikki carburetor 2019 Kawasaki Mule SX KAF400

[MParr]

Now the truth comes out. Those Nikki's, I've had nothing but bad luck. Bought aftermarket and OEM rebuild kits. Those ultra small o-rings get poorly punched out and leak. Never could get them to work proper. Some guys love rebuilding them and have good luck. Trash can it went. Used a Walbro version for that Briggs engine I was working on. Worked like a charm. I know you are working on a Kawi engine.

Good luck with your carb. Let us know if you need more help.

I wish that I could get a Walbro carburetor for this Kawasaki Mule. It's a 2019 Kawasaki Mule SX 4x2. I listed the engine above.
Here's the kit that I plan on ordering. It's made in Japan and should work well.

https://www.denniskirk.com/shindy/carb-repair-kit-03-122.p178251.prd/178251.sku

 

[slomo]

That is WAY different than a Briggs Nikki. That looks to be a simple rebuild. Give it a shot. Not seeing any negatives as long as it fits what you have.

 

[MParr]

That is WAY different than a Briggs Nikki. That looks to be a simple rebuild. Give it a shot. Not seeing any negatives as long as it fits what you have.

I did notice that the main jet in the kit is quite a bit smaller than the OEM jet. This thing has had problems since new. It's just gotten worse over time. I'm thinking that a new main jet and needle will cure the problem.
Here's what I ordered. I see that Stens carries a similar product for about the same price.

https://www.amazon.com/Carburetor-Kawasaki-Mule-2005-2019-Carb/dp/B083NS3F14/ref=mp_s_a_1_3?crid=1HRKND98F7JI1&dib=eyJ2IjoiMSJ9.18aYaOmEnwpP8E3pSdDvKbKXBTU070m8OeH306lA-XsCFqQI30w_0XaikORs72ZibmukNpzU8b_LvchlL6Fm5TtMkUZXkGSumh5Xrn4HxVqMHJ2pCo1K6dY-uIab5e7u9BfFPId1ZgOtUot2TpHxy1DqWhQzGq_3fvPE6g0-TiQno6i4OKdaRXBFQhrQI82MhPrDl5ufL6XnIWjPLWlWgg.cG4qcxkIvnwbHNPzHWUd6aOle7u2EPB9ms1LrW_FUYc&dib_tag=se&keywords=carburetor+for+2019+kawasaki+mule+sx&qid=1740702364&sprefix=carburetor+for+2019+kawasaki+mule+sx%2Caps%2C114&sr=8-3

 

[Scrubcadet10]

Does it still have the factory vacuum fuel pump?

 

[MParr]

Does it still have the factory vacuum fuel pump?

Yes. It seems to be working fine. It runs great after initial warm up.

 

[MParr]

Yes. It seems to be working fine. It runs great after initial warm up.

I think that I will pick up an OEM fuel pump tomorrow. I may as well replace it while I'm in there.

 

[Tiger Small Engine]

Now the truth comes out. Those Nikki's, I've had nothing but bad luck. Bought aftermarket and OEM rebuild kits. Those ultra small o-rings get poorly punched out and leak. Never could get them to work proper. Some guys love rebuilding them and have good luck. Trash can it went. Used a Walbro version for that Briggs engine I was working on. Worked like a charm. I know you are working on a Kawi engine.

Good luck with your carb. Let us know if you need more help.

A Nikki (single cylinder) carburetor is like a Kohler Courage (single cylinder) engine, problems. Nikki carburetors are prone to leaking and hydro locking the engine, more difficult to clean and rebuild, and just generally a pain. I have had good results with aftermarket Nikki carburetors when needed.

 

[slomo]

Don't know for sure but I would guess at the Briggs Walbro might fit as well. ???? Or be close enough to easily adapt to.

 

[MParr]

Don't know for sure but I would guess at the Briggs Walbro might fit as well. ???? Or be close enough to easily adapt to.

The aftermarket carburetor and OEM fuel pump have been installed.
It's not the easiest job.
I finished the installation and get ready to adjust the idle. I cranked and cranked and cranked. I know that I had everything right. I looked down and saw my vise-grips clamping off the fuel line. Big dummy! After removing the vise-grips, it fired right up.
Time will tell if the Chinese carburetor cures the problem.

 

[MParr]

I figured that had better move swiftly on the carburetor replacement. Over the past few mornings I have noticed raw gasoline coming from the tail pipe. My suspicion was confirmed. Gasoline was mixing with the crankcase oil. The air filter and air filter box were dry. I changed the oil and filter. It runs darn good now.