HRC kit not sure

[hadler19]

i recently purchased a 2006 450r and the guy said it had a HRC kit installed and gave me the manual with the installation date. It looks like its the stock header and i just wanted to know if there is any way to know for sure whether or not the HRC kit is installed on it.

[Scro]

The HRC airbox lid has a hole in the back, and kind of curves down toward the filter. The stock lid is closed, except for a tube.

[hadler19]

well he said he just removed the stock air lid to get more air to it

[Scro]

If it still has the stock exhaust, the stock end cap's opening will be about the size of quarter. The HRC endcap's opening will be quite a bit bigger.

[hadler19]

ive got an hmf slip on, the header on mine has the heat shield, does the hrc header have one?

[Scro]

That's what I'm not sure of. I don't think it does. The only other thing I can think of that would be visible is a white plastic reservoir-type thing that attaches to the airbox. Sitting on the quad, it's on the left side. The HRC has a flat piece of plastic that blocks off the hole that the reservoir connects to. (It's not a reservoir, but that's the best word I can think of to describe it.) You may have to unhook the rear plastic under the seat to see it.

[Rich250RRacer]

Originally posted by Scro
If it still has the stock exhaust, the stock end cap's opening will be about the size of quarter. The HRC endcap's opening will be quite a bit bigger.

You're confusing 04-05 with 06 and newer. 06 and newer kits don't come with a airbox lid. You just take off the stock one. The exhaust end cap doesn't get changed like the 04-05 either, just the insert gets removed, original endcap stays on. The 06-newer kit does come with a difuser to reduce noise and make it AMA legal.

[Baileygunns]

The HRC header uses the stock heat cheild... Pull the valve cover off and look at the Cam. That's the tell tale sign..

[desratt]

or pull the main jet

[Rich250RRacer]

Originally posted by desratt
or pull the main jet

But that really doesn't prove if there's an HRC kit. Anybody can remove the lid and buy a main jet at the dealer.

[desratt]

yea. but if it isn't then you just saved your self takeing off the valve cover. also the needle is almost impossible to get outside of the hrc kit

[ewalker302]

Not impossible or even difficult. All you need is the part number, and a call to service honda, or the dealership.

I bought and installed the hrc jet kit with the needle, leak, and main jets about 8 months before I went ahead and bought the full hrc kit.

All the components of the hrc kit are available individually.

[hrc450er]

measure the diameter of the header on it then post it on here and you'll know soon enough