Two Stroke Motocross
Two Stroke Motocross Forum => General Two Stroke Talk => Topic started by: Charles Owens on August 01, 2010, 08:15:02 PM
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Thought I would throw this out if anyone is interested, the rest of my parts should be here this week. :)
This is the bike when I picked it up several weeks ago. It was in ok shape, needed some TLC.
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/IMAG0080.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/IMAG0072.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/IMAG0073.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/IMAG0074.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/IMAG0075.jpg)
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I transplanted Forks and a rear spring from a 99 YZ 400F, as well as the complete front brake assembly.
Here's a complete parts list as of now anyway, it seems to get longer everyday. I started last week, had a buddy spray the frame. And another buddy throw in the bottom end at his shop.
Wiseco Bottom End
Wiseco Clutch Basket
Pivot Works Front and Rear Wheel Bearings/Seals
Pivot Works Swingarm Bearings/Seals Rebuild
Pivot Works Linkage Bearings/Seals Rebuild
MSR Fork Bushings and Seals, New Oil in 99 YZ 400F Forks
99 400F Rear Spring
52 T Blue Alluminum Rear Sprocket, 13 T Front
D.I.D 520 114 Link Chain
EBC Front and Rear Brake Pads
Rebuilt Front and Rear Master Cylinders,Fresh Fluid Front and Rear
Complete Front Brake Assembly swapped from 99 YZ 400F
Athena 'Works' Cylinder/ Top end kit
Shift Lever
Brake and Clutch Levers
Moose Magnetic Oil Drain Plug
UFO Chain Guide Block, and Slider
UFO Mud Flap
UFO Plastics
UFO Fork Guards
UFO Hand Guards
UFO Frame Guards
UFO Blue Number Plates (Front and Sides) removed the white ones.
SDG Gripper Complete Seat
Blue Silicone Radiator Hoses
Blue Fuel line
Continental Sport (GS)-MX Intermediate Terrain Rear Tire - 100/90-19
IRC Heavy Duty Tube 19"
Wheel Strap
Bead Lock
Motion Pro Throttle Tube
EBC DR Clutch
OEM Parts:
Misc Hardware
Frame/Sub Frame/Swingarm Grommets/Plugs
Carb Screws
Kick Start Torsion Spring
Kick Start 'Axle' Assembly
Power Valve Rod and Arm Assembly
Misc. Gaskets
(http://i813.photobucket.com/albums/zz58/cowenz/DSC09879.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/DSC09878.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/DSC09877.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/DSC09876.jpg)
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As parts started coming in I started re assembly with what I had.
Quite a few parts are coming tommorrow, should be able to rebuild the forks tommorrow evening.
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC09997.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC09998.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00001.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00002.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC09990.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC09995.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC09988.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC09989.jpg)
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Nice work!
Great looking machine.
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Glad to see you posting... :)
Great looking bike and nice work!
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Thanks!
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WOW! good job!!
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Nice cant wait to see the final product.
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Haha I can't wait either, waiting on parts is the worst!
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For a 97, it sure did look clean before you started. You will have a nice bike when finished.
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It looked clean from the pics, it had a lot of home touch ups, and overspray from the previous owner.
Worn bearings, Sprockets/Chain, oil drain plug was stripped and JB'ed. I just got a completely different bottom end to rebuild. Start fresh.
I got in a few parts today, nothing that can really progress the rebuild. Except I guess I can repack my shorty now.
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00014.jpg)
UFO Brush Guards
FMF Packing
ASI Blue Silicone Radiator Hoses
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Sweet.Nothing like starting frame up with a box-o-goodies.Nice job. 8)
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mmmmmm, love when new parts show up
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Haha yeah, our mail driver hates us, my girl orders more shat than I do. :)
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LOL mine knows me by name. We talk all the time and it used to be she would say "Archery or motorcycle Mike?" but now she knows it's pretty all bike parts, haha.
Looking forward to seeing some updates on this. It's already looking great!
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Bowhunter eh?Off topic I know but what breed of bow do you shoot Coop?
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I'll send you a pm so we don't ruin PPMS's 125 thread :) .
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Re Packed my shorty yesterday, just finished installing the new power valve connecting rod.
99 YZ 400F forks are ready to be rebuilt when the rest of the parts get here, tommorrow I hope. Hopefully the Athena kit should be too, but maybe Monday. :|
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00015.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00018.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00020.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00021.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00024.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00025.jpg)
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Looking good.
Just curious, why did you decide to go with the 400 forks?
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Good question. I was doing some research on respringing for my oversize. :) I'm 6'2, 230ish
The recommended spring rates for me were:
Front: .480 kg
Rear: 5.40 kg
The YZ 400 stock are .460kg (close to mine)front. And 5.40 rear (exact)
The 125 stock Spring rates are:
.421 Front
4.8 Rear
So the 400's rates are close on the front, and exact on the rear for my recommended rates.
I happened to pick up a 99 400F for a part out, so it became a donor. :)
Also the 400 forks have a better routing for the brake line before it connects to the caliper, not as exposed to rocks, etc.
I was going to send them to Factory Connection, then I thought about when I go to sell it.. I couldnt justify almost $1000 to get it set up perfect for me, just to sell it to someone that would need them rebuilt to thier size anyway. So the donor is the route I went.
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That bike is looking bitchin.
You have done a great job and I have enjoyed you sharing the process, thanks.
If you know how to weld, perhaps the old four stroke frame could be made into a wind chime :o
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That's cool thanks for the info.
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Ok, the last of my parts came in today ;D
BUT.. now I need to order a few other parts, so I can't finish this weekend. :|
Have to order a Rod needle bearing, and a few other OEM power valve parts.
The Athena kit does not come with the bearing, or power valve rod etc.
Of course I can't do anything with the motor until the bearing arrives.
Kind of sucks being held up on reassembly because of 1 bearing
Seals and Wipers came for the forks, so I can continue the rebuild and installation of them.
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00026.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00027.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00028.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00029.jpg)
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Finished rebuilding the 400's forks, and started reassembly. :D
It's starting to look like a bike again. A few more days of waiting on parts and it will be finished.. for now.
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00030.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00031.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00032.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00033.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00034.jpg)
More pics to come. :)
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Looking good. That cylinder is pretty :) .
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OOOh yeah, that is gonna be one sweet lookin YZ.. ;)
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Ok, update.
Had to order a 99 FMF Fatty due to the Athena kit, as well as $175 in OEM Power Valve parts and some misc hardware,etc. :|
Parts should be here by Friday hopefully!
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Are you replacing the gas tank as well? I noticed the original one looked to be the old 97 dark blue colorā?¦ Personally Iā??d have gone with all the plastic in that color.
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Whats the cost of a Athena kit over there ?
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So is it gonna be an overbore, like a 144? Everything looks very good.
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PowerPlayMotorSports AWESOME rebuild!!
Thank you so much for sharing your process of rebuilding the bike.
Welcome to the forum!
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Thanks Guys!
The gas tank, yes it is the horrible 97 Navy blue, I have been trying to squeeze out a reflex blue tank.. but little required parts keep dipping into my 'want' fund :)
I would assume I will have a new tank by the time it is done, will have to see how this week goes. I know it will be replaced before I get the graphics.
Some new wheels/triples/bars are on the list as well, but that will have to wait til after Sep 15th when we close on the new property.
It is a standard bore kit, got it for $500ish delivered.
Thanks for the comments!
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Ok got a quick update, I've been busy and waiting on parts.
I got in my wrist pin bearing yesterday, so I started assembly on the top end.
The final OEM power valve parts should be here Tuesday or Wednesday to finish up the bike. :) Also trying to get a new fuel tank ordered today maybe.
These first few pics I'm checking for casting flaws and burrs in the valve/exhaust port. Thought the pics looked pretty neat. :)
As you can see there were a few burrs in the exhaust port I had to take care of :)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/IMAG0105.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/IMAG0106.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/IMAG0107.jpg)
...
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/IMAG0108.jpg)
Got a little bored and brushed/polished both Valve covers and the Boyesen Stator Cover, came out pretty good. :)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/IMAG0109.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/IMAG0110.jpg)
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Just ordered a new Reflex Blue fuel Tank, and some Renthal bars.
They will be here Tuesday, the rest of the OEM parts to complete the build will be here Tuesday or Wednesday. :D
Hopefully my wallet can cool off now til we move. :)
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Wow great work man,is it a 144 cylinder. I had Jeff Wiloh,s 97 YZ125 Noleen national bike.
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No, it is the standard bore.
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Nice work on those covers!
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Thanks! I think on the next project (coming in a few months) I will be polishing out all of the alluminum, cases included. :)
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Thanks! I think on the next project (coming in a few months) I will be polishing out all of the alluminum, cases included. :)
That would look sweet!
Nice job though, its lookin a treat!!
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Quick Update. :)
Got in a few more parts.
New Clarke tank, getting rid of my 97 Navy Blue tank.
Works Connection skid plate.
Got in my '99 Pro Circuit Platinum today as well.
Renthal bars.
I also got in an 03 YZ 125 for part out, which dontaed a few parts to my 97.
Not that I need any more of a tuning challenge, but I pulled, and rebuilt the 03 38mm carb, getting rid of my flat side 36mm. This will probably = a jetting nightmare, but maybe not. We'll see. :)
I'm still waiting on my power valve parts.. >:(
I also bought some Universal Engineering adjustable triples today, got a good deal on them, so I figured I would try them out. I'm hoping the quality is as good as it looks.. I will let you guys know.
..
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00235.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00234.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00233.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00232.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00231.jpg)
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Damn that looks pretty ;D
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Looks great!
My only suggestion, NOT complaint, is next project put a wire wheel in your drill press (or drill) and use it to clean up nuts and bolts. Little details like that really make a project.
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I completely agree, and usually I do. But we are getting ready to move, 326459255 things going on, and I have already packed up most of my shop including my bench grinder w/ wire wheel. :)
I'm sure it will come apart again after I get in my new shop for detail work.. After I ride the Shat out of it anyway. :)
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That is so sweet, sorta like what I did to my cr125, except I only redid the engine, this looks amazing.
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ITS DONE!!%$($*%$%$*%$*%$ :D For now anyway, my triples will be here Tuesday, and some new wheels after I move on the 15th. :)
Pics this evening!
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Awesome, looking forward to seeing it!
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Here it is!
It's far from perfect, it has some minor cosmetics that I will be changing when the parts get here, misc oem hardware thats worn/rusty.
I need to do some filing/grinding on the SDG rear mounts for the seat, it sits a little higher off of the rear fender than I would like.
It looks just how I pictured it, and what I was going for. I am very pleased. :D
Tommorrow I will be starting the heat cycles and break in :D
I'm looking for some suggestions on graphics, let me know what you think would look good!
My triples will be here tuesday, then I can set up my suspension.
I will be getting black rims/blue hubs after I move, and some new radiators/guards.
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/819107.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/819106.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/819105.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/819104.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/819103.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/819102.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/819101.jpg)
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Looks great! How does it run?
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I'm picking up my fuel in the morning to start the cycles/break in. Can't wait!
I'll post some videos over the weekend.
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That does look nice, it'll be even nicer with the graphics :D
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I agree once you get a graphic kit for the bike it will look pretty sick.
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IMO I think as close to stock as possible looks the best on graphics. Bike looks good!
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Got my triples on yesterday, and graphics today. :)
I need to get an OEM front number plate, the graphics don't fit the UFO plate..
Still looks good though. :)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00408.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00406.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00405.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00404.jpg)
(http://i813.photobucket.com/albums/zz58/cowenz/1997%20Yamaha%20YZ%20125/DSC00403.jpg)
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NICE ;D ;D ;D
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Looks good man, now you got to shred some berms on that thing. Just remember it's a 125, so hold that throttle on until you think she's gonna blow, then shift!
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Yeah I put a few hours on it last weekend. Its sweeet!
My jets should be here tomorrow.
It will get well used when we close on our new property in 18 days! :D
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Looks sweet, nice job...
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I miss this bike!
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It is sweeeet. I hope mine comes out as good as this one.
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It is sweeeet. I hope mine comes out as good as this one.
Yeah Charles did a great job. But like must of us with bikes we put so much time into, now that he sold it, he wished he still had it :D
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Heck, just get another one. I'm still planning on doing a rebuild on a 94-98 KX125, or a 93-96 CR125, or a 90-92 RM250, or an 86 CR125, or an XR200 (I know, but its a fun 4-stroke). Of course there is always the 96-01 YZ125. You know...
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Make up your mind burn. :D
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I actually put all the plastics/graphics/gas tank on my current 250. :)
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then you went and wrecked it :P
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This is kind of a hurtful thread. You put together this awesome bike that everyone is drooling over and wishing they could do, then you sell it :( Then you get some nice parts and put them on your 250, then you wreck it ??? Is there any hope in the world?!!! :-[
I feel better now.