YZ250R 2003 ex Nick Wey w. Reed spec. eng mods

kibby
Posts
78
Joined
1/9/2012
Location
El Cerrito, CA US
Edited Date/Time 12/27/2019 5:04pm
FOR SALE $4900
Pro Circuit Cylinder and head mods, pipe and silencer.
Hinson Clutch
Pro Circuit triple Clamps
2010 YZ250 forks
Renthal Twinwalls
ARC Rotator perch
Brembo Front Brake Master cyl
Motostuff 280mm Front Disc
Titanium GYTR Subframe
Majority of fasteners Ti/Aluminum
Frame only used in 2003 approx 45 hours (was Nick Wey Race-Test-Prac.)
Frame was retired due to minor crack at engine mount tab ,has since been gusseted and is more sturdy than original. Also powder coated metallic silver.
Cases and crank approx 15 hours
Majority of other parts only 5 hours old (new when I built bike) such as wheels, swingarm, tank,rear brake.airbox,shock and more.
Located in Los Angeles CA. Can deliver in CA/NV/AZ/OR Crating/Help with shipping available.











[img]https://p.vitalmx.com/photos/forums/2019/11/08/383939/s1200_IMG_2629.jp
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H4L
Posts
2499
Joined
3/18/2016
Location
CA US
11/8/2019 4:37pm
Very cool to see one of these bikes still out there. I picked up an 04 model that was Chads practice bike in 05 through an acquaintance of Larry Brooks. Similar PC engine specs.. GLWS..
1
CrGuy2T
Posts
4183
Joined
3/11/2015
Location
Santa Fe, TX US
Fantasy
3711th
12/19/2019 7:33pm
I have a factory Yamaha yz 250 motor from 04.
2
Mx391
Posts
259
Joined
10/25/2017
Location
Mid, TN US
12/20/2019 7:26am
Is that just like a flat washer welded on tip of silencer or is there more to it on the inside?

The Shop

UGOTBIT
Posts
804
Joined
8/14/2018
Location
Upstate, NY US
Fantasy
1724th
12/20/2019 3:20pm
Mx391 wrote:
Is that just like a flat washer welded on tip of silencer or is there more to it on the inside?
Saw that on DV’s bike build also, don’t think the production ones are like that?
DynoDan22
Posts
775
Joined
9/7/2011
Location
Victorville, CA US
12/20/2019 7:57pm
It's a little ring welded into the silencer stinger to reduce the inside diameter. It actually is meant to gain a little rev back as the silencer is a shorty. I've seen this done quite a bit back in the day.
2
cdoggy81
Posts
1313
Joined
1/1/2018
Location
St. Petersburg, FL US
12/21/2019 11:53am
Dynodan22 is exactly right. Bc the shorty is shorter in length & less restrictive you can reduce the diameter of the tip to add a little bit of back pressure for more over-rev. If you look inside the end of the older shorty silencers you can see / feel a ridge where Mitch has one build in. FMF actually sells replacement tips with different diameters for this exact reason.

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