TRX450r motor build

[Weck]

I just got the motor back in my 04 Honda 450. There was nothing wrong with the motor but it had never been touched and I was getting concerned about all of the horror stories I had heard about locked up crank bearings, rod bearings, etc... I had talked over my rebuild plans with Mark at Quad City Quad Doctor a couple times and was now ready to tear into it.

We ordered a new updated Honda crank and bearings, 12:1 JE piston, 02 CRF cam, most of the internal bearings, complete seal kit, etc...

We also talked about doing some port work to the head while it was off. My primary issues with this motor build were that it remain just as reliable as it had been all season and started just as easy. Mark assured me it would do all these things and pick up some real good power to boot. So we did port the head to be real smooth and work well on an XC quad. I have put two rides on the motor so far and it starts in just two kicks when cold and one after warmed up. It idles great and the power increase is awesome. The low end right off of idle is about the same but from what feels like about 2500 rpm on up it really comes on strong.

Thanks for the great motor build QC Quad Doctor!!

[Weck]

Here's the finished product. Did a little polishing on the side cases and recently added the Rath bars and QT seat cover.

[xman]

Sweet, nice pics!

What'd you use to polish the side cases and how long did it take, they look nice!

[Weck]

Harbor Frieght on Kimberly Rd sells a polishing kit with (2) 2" inch wheels that go in your drill and two sticks of compound for about 6 bucks. Then I have a smaller attachment for my air die grinder.

- Go over the whole area lightly with an SOS pad
- Do the polishing.
- Follow-up with any aluminum polish on a soft rag.

Basically anything aluminum on a quad can be worked to look like chrome. My kick, gear and brake levers took about an hour a piece. The motor was almost an hour per side. I'll be doing the clutch cover seperatly soon.

I can be hired. www.openflyquadprep.com or PM me here.

[Wait4me]

The quad looks pretty smooth (for a Honda) Weck, but I have to ask.......just how WIDE are your feet?! Those pegs are crazy!!


(Xman, if you wanna practice polishing something.....let me know. HAHAHAHA)

[xman]

I'd be happy to help you polish your riding skills.....but unfortunately some things are beyond my grasp...or in your case unable to be grasped!!

...............BAAAAAAAAAAAAZZZZZZZING!! ;D

[drillteamleader]

How much does he charge to replace the crank?

[Weck]

Sent you a PM.