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By BernieG
I could really use some help identifying some disconnected components on a Yard Sport YS400. The first part is this pipe, which comes out of the exhaust port area or the cylinder. It looks like it had a piece of rubber hose on it, but the hose is gone, and I have no idea what it was previously connected to.
The second item is this vacuum valve looking thing. Again only one line is still attached. What is it's function and what other lines should be connected to it?
The last thing is this hose, which exits the side top of the fuel tank (not the fuel line hose) but is not connected to anything
Any help the community could provide would be greatly appreciated. This UTV belongs to a friend, and I am trying to help him get it running correctly for his kids.
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By Retired Plumber
The rear differential lock light is on and I would like to get it off. How do I do that it is a Coleman UTV700.
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By Travis
Many people have issues with the kawasaki FJ400 engine fouling out spark plugs, after working on a few FJ engines and 600 series Mule's with this issue, i can say the fix for this issue is using a slightly hotter spark plug... the factory recommends a BPR6ES NGK plug.... the Number in NGK plugs represents its heat range and somewhat odd, the lower the number the hotter the plug, at least as far as NGK is concerned. If you have a Mule fouling spark plugs try installing a NGK BPR4ES spark plug.
FROM NGK
A hotter heat range spark plug has an insulator design with a longer heat flow path to the metal shell of the plug. As a result, more heat stays in the ceramic firing end and less is dissipated to the engine. A colder heat range spark plug has an insulator design with a shorter heat flow path to the metal shell of the plug. As a result, less heat stays in the ceramic firing end and more is dissipated to the engine. For a spark plug to function properly, it must have a tip temperature high enough to burn off carbon deposits (self-cleaning) and avoid fouling, while remaining low enough to avoid overheating the ceramic firing end and pre-ignition.
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By great8redsfan
Okay folks. I have a low power issue. Been like this for a few years. Place I work at bought 3 and all have lost most of the pulling power. They gave them away after local shop worked on one for 3 months and it had great power for about 1 month and then crap. They replaced throttle body, fuel injector, spark plug and IAC motor. Seat belt switches have wires cut and left open so no seat belt warning light anymore. It revs to 6k rpm in neutral but when put in gear and take off in low it just doesn’t seem to want to go anymore. Running 93 octane fuel with Stabil. Any ideas greatly appreciated. I dont have a scan tool but no codes on dash. If held to floor it pops a little and runs almost 5K rpm but if I let off pedal about an inch it smoothed out and revs up to 6k rpm.
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By Travis
View File Kawasaki Mule 550,520,500 Complete service manual
This is a complete service manual for the Kawasaki Mule 500,520 and 550 models.
Topics covered include Brakes, Steering, Electrical system, suspension and fuel system. As well as engine repair procedures and Transmission/Final Drive procedures.
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If you need more information about the engine this manual linked below is chock full of information.
Thanks goes to @cliffyk for getting these files all into one PDF format for uploading.
Submitter Travis Submitted 04/18/2021 Category Kawasaki
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