majmaj

A knock in the fuel pump is normal. Mine really sounds loud with the seat off.

I would download the manual and see if there are readings you can take on the sensor.

Does the H for high come up on the pod? or does it display and E?

Maybe you can pull the belt cover and make sure there is nothing in there like water or belt dust then check the deflection on the belt. It would be alot easier to check that stuff first before getting into the motor and trans.

Lastly I hope you used wet clutch safe oil. I am sure you did but just covering all the angles.

Hello Swamp, thanks for the answer, more info:

Th H, R, L and N show in the pod.

I can drive the ATV only in first gear in L, H, and R.

Pull the belt cover and everything works as it's suppose to. I tried it in gear and both pulley turn. No water but some dust in there.

I used proper oil but I'm not the first owner.

I was asking about the fuel pump because I can't go over 4000 rpm in neural so not sure if that has anything to do with it.

I just called the local atv guys and they told me that it might be the TPS (throttle position sensor) anyways I can check it myself?

Hey Gents, first post on here and I hope I can get some help.

I just bought a 2006 Arctic cat 400 auto. Not sure how it was working before as I bought it at an auction.

1- Start no problem

2- Replace oil, oil filter and fuel (just for maintenance and used ATV oil)

3- runs good (no engine noise)

Here is the problem "I can't go over 30 KM"

I can go and drive in Low, Neutral and reverse no problems.

The fuel pump make a little knock noise. Would it be possible it need a new pump?

Dirty carburator??

Just noticed when I went for a drive that it doesn't change gear. Goes to 4000 rpm and stays there.

let me know what you think

Thanks