I dont really know my 4 stroke engines but I have worked on a few sleds and u said u took the airbox lid off? If you take the cover off a sled airbox u will lean it out and burn ur pistons pretty fast. Im no expert, at all, but maybe check ur plug colour and do a compression check.

 

Kyle, the HRC kit comes with an altered airbox lid, most of it cut away, and also has jets to rejet the carb and a different end piece for the muffler. But if you do remove or cut open the airbox lid without rejetting you will lean out very quickly on the 450R, you'll notice the lean situation within a few minutes.
I think most likely it is a timing problem from not removing and the reinstalling the timing chain tensioner.

 

WOW i wish it was as simple as the timming! I took the valve cover off and found METAL shavings! I looked it over with a few friends and i was blaming myself the whole time but couldnt figure out what the problem was untill i took the carb holder off. It turns out that honda had the wrong cam in the kit, the cam had rubbed on the rocker arm so bad that it wor the rocker arm almost in half, each lobe on the cam was wider and bigger than the proper one. It was shure pretty inside if you like the color blue you would have enjoyed it too. LOL, So looks like honda is cleanning my entire engin out and putting the proper cam in. So a lesson to be learnt; If you do your own cam after its put back together run it for 15minuts, or so, take it appart and check it over again, if you wanna be safe and don't end up in the same situation i am in. Thanks for everyone's opinions.

 

DAMN!!! that would be huge pain in the ***.....I hear that HRC kit really wakes the 450r up though.


thats too bad you had to miss a day of riding because of it, hope everything works out good for ya

 

I will post a message to everyone when my wallet is empty and its running again, because i am still going with the HRC kit.

 

Bummer on the wrong cam! Is Honda paying for all the repairs?
You'll like the changes the HRC kit makes.
I basically did the same thing with mine and then some. I first went with a Stage II Hotcam and a FMF Q2 slip onand cut open the airbox lid HRC style. Then later I added an Athena 480 big bore and had the head ported and polished. I love the power it has now.

 

Ya Honda said they will meet me half way on the repairs because if i would have got them to do it it wouldn't have happened. How much does it cost to bore out the heads because they have to take the entire thing appart anyway i was thinking of getting it all done at once. Don't forget my cost is in Canadian dollars. hey your from WSHINGTON where would you say is the best ridding around Washington is it better in Oregon or idaho, or would you say to just go all the way and ride Glamis?

 

What type of riding are you looking for? Trails or dunes?
Mainly just trail riding here in Washington, the dunes (so called) in this state don't stack up to the ones in Oregon, not by a long shot.
I have never been to St. Anthony's in Idaho but I deffinately want to go there some time. From what I have heard they are great dunes!
Oregon has 3 really good dune areas on the coast, Florence, Winchester and Coos Bay/Spinreel. We usually make at least two trips there every year. In fact a big group of us heading down there the second week of April and are hitting all three! It's going to be a great trip with about 2 dozen friends in attendance.
The Oregon dunes are about a 7-8 hour drive for me, I live about 35 miles north of Seattle, if it was closer I'd go more often.
Glamis is another dune I'd love to go to. Oregon and Glamis have different riding season. Oregon is best from the spring until the early fall. You can ride there in the winter but it can be very rainy. It can rain anytime of year there, but most likely to have it in the winter.
Glamis is a winter riding area. Summer temperatures get over 100 almost every day. I'd say October to April would probably be the best time of year there.
Oregon also has ALOT of areas to trail ride. The state really uses the licensing money from the atv's properly and support many, many riding areas. Washington State could learn alot by following Oregon's example, but I'm afraid that will never happen.

Check Oregon Off Highway Vehicle Association and Oregon Dunes