My winter top end rebuild (lots of pics)

[ke26]

So my story is.

I bought my 2002 400ex back in June. Everything was perfect on it but a minor volve cover leak. So I replaced the handle bars becasue I had a little roll over. Got a new bumper, then got a curtis sparks exhaust. December rolls around and I can tell I am buring a lot more oil than normal. I go on a little trip out in indiana and by the end of the day my motor burnt up all the oil in the oil resovior. not good!

The tear down started about 3 weeks ago. Here are all my pics that I have.

[ke26]

http://i277.photobucket.com/albums/kk52/egbertkj/f701a9d0.jpg

http://i277.photobucket.com/albums/kk52/egbertkj/0d365da9.jpg

http://i277.photobucket.com/albums/kk52/egbertkj/35f29a23.jpg

http://i277.photobucket.com/albums/kk52/egbertkj/cb94c641.jpg

http://i277.photobucket.com/albums/kk52/egbertkj/d7cb5be7.jpg

Oil ring was bad, also valve seals. which felt like rocks.

[ke26]

After shots of my head being rebuilt

http://i277.photobucket.com/albums/kk52/egbertkj/fc1a35f1.jpg

http://i277.photobucket.com/albums/kk52/egbertkj/6abe3825.jpg

[ke26]

I was able to keep stock size piston. I purchased a wiseco 11:1 kit. Got everything together and found out my clutch is bad now. So that sucks haha. I am waiting for my tusk clutch kit. I did get my 450r shocks in the mail!

http://i277.photobucket.com/albums/kk52/egbertkj/62b8c4b2.jpg

http://i277.photobucket.com/albums/kk52/egbertkj/2aace0f0.jpg

http://i277.photobucket.com/albums/kk52/egbertkj/fd512db2.jpg

http://i277.photobucket.com/albums/kk52/egbertkj/eb5a3768.jpg

http://i277.photobucket.com/albums/kk52/egbertkj/63c31a8b.jpg

[dxcody]

Looks awesome!

You will be very pleased with the 11:1

Very noticeable power gain, but yet its still very smooth.

Head looks awesome!

I would like to know what chemicals they use to get them to look like new again.

Very nice though! :D

[PrideRider]

i also went with the 11:1 with a stage 2 hotcam stock bore you should have a nice quad on your hands after shes all done nice build!

[ke26]

Originally posted by dxcody
Looks awesome!

You will be very pleased with the 11:1

Very noticeable power gain, but yet its still very smooth.

Head looks awesome!

I would like to know what chemicals they use to get them to look like new again.

Very nice though! :D

The guy took everything out of the head. Then put it through some acid bath. I couldnt beleive how amazing it looked!

Thanks guys, I got my clutch in the other day. Working a little to much, So when i get a few days off I will be putting it in! Also I got to adjust my valves again. gotta love them valves adjustments lol

What jet should i run with? 180? I have a curtis sparks exhaust, uni filter and my 11;1 Hi comp piston.

[CJM]

Id try a 165 first. You didnt overbore, just upped compression. If Im at 426 and a 172 then a 165 should be rather close.

[ke26]

Ok I will try that. Its been running lean I am guessing because my header glows after idling for awhile. On the honda forum I am on one guy said I should do a 180 since I have the curtis sparks exhaust. I wanna keep my lid on my filter though