I just got a KFX 400 last month and so far so good but I want to learn more about how to work on them. My first question is what is in the radiator? Is it just water or something else? If it is just water can you put in coolant like in a car?

Next question is what is the easiest way to pull the spark plug?

Last question for now is what type of handlebars have people been replacing the stock ones with?

Thanks

Steve

 

50% coolant, 50% water

 

You can just reach in and remove the spark plug. Make sure the plug area is clean, wiggle the boot off, and use the spark plug tool in your tool kit to remove it..........

 

Go back to your dealer and buy a service manual. It will tell all about your quad and how to fix it and maintain it as well. It's going to cost about 30 dollars but its well worth it.

Mike