Post by: motoxr377 on November 18, 2012, 12:39:19 AM
You might remember that I bought an '09 YZ125 for $2200ish over a month ago. I disassembled it that night to grease the bearings, and sure enough they were shot. Replaced those. While I was at it, I pulled the top end. It needed rings, but I said to hell with it and sent the cylinder and head to Tom Morgan Racing for his porting package and high-octane head mods. I put in a Wiseco GP series piston with a TiN ring. The suspension went to Enzo Racing, and was rebuilt and revalved. Craig Decker at Enzo also added Race Tech Aluminum Free Pistons and Diverse SiCr Fork/Shock Springs. Other little bits were purchased, like the Fasstco Brake Spring and Clevis, Works Connection Elite Perch and Hour Meter (right above the kickstarter), Pro Circuit Throttle Tube, Carbon Mud Flap (eBay), and a genuine Yamaha GYT-R Titanium Subframe. The subframe was made for the 02's before they ceased production of them, but it fits perfectly to the newer aluminum frame. I found it new on eBay and bought it now for $180.00. Win.
I went up a tooth in the back with a Renthal Rear Sprocket, and stayed stock size in the front, also Renthal. Bought some plugs, plus'ed up on some brass for the carb, and put in a new No-Toil. All I have to do is get the chain on and It'll be time to waste these tires (new ones are waiting!).
Anyhow, I'm freaking pumped! I'm going to start with the stock pipe and reeds and change the variables from there. Fuel is VP C12 and 93 Octane mixed 50:50 and Bel-Ray H1R mixed 32:1.
Enjoy!
Post by: riffraff on November 18, 2012, 01:38:24 AM
Post by: motoman356 on November 18, 2012, 02:06:24 AM
Post by: scotty dog on November 18, 2012, 12:17:08 PM
Post by: evo550 on November 18, 2012, 01:17:53 PM
No Caffine drink sticker kit, no anodisng bling or cut down seat.
Fresh top end, suspension upgrades, jetting and gearing, smart first move, attend a few pro coaching clinics and your well on your way to victory lane.....and girls love that
Post by: eprovenzano on November 18, 2012, 02:22:27 PM
Post by: twosmoke595 on November 18, 2012, 05:54:37 PM
Post by: Chrisshire on November 18, 2012, 09:37:32 PM
Post by: twosmoke595 on November 19, 2012, 01:21:05 AM
pretty trick
http://www.ebay.com/itm/YAMAHA-TITANIUM-SUBFRAME-SWING-ARM-YZ125-YZ-125-1996-/250900587380?pt=Motorcycles_Parts_Accessories&hash=item3a6ad72374&vxp=mtr
Post by: motoxr377 on November 19, 2012, 03:43:12 AM
Post by: Super Trucker on November 19, 2012, 07:21:23 AM
Post by: motoxr377 on November 22, 2012, 01:20:36 AM
Post by: Coop on November 22, 2012, 01:34:43 PM
Post by: dogger315 on November 22, 2012, 09:39:40 PM
Love the Ti subframe, very trick.
Should be a hoot to ride.
dogger
Post by: ford832 on November 23, 2012, 04:13:25 PM
Post by: motoxr377 on November 23, 2012, 06:46:17 PM
Rode it today - I am in shock as to how blisteringly fast it is for a 125. Feels like my old '98 RM250 with more over-rev. Bottom punch is still good, transitions to mid-range smoothly, and just goes Warp Factor 9 through the top without signing off. I've got to get to a track now and see how Enzo did.
I love this bike. Need your engine modified? Call Tom Morgan.
Post by: Stusmoke on November 29, 2012, 12:19:56 AM
Post by: motoxr377 on January 13, 2013, 06:33:04 AM
Post by: motoxr377 on January 13, 2013, 06:41:37 AM
Post by: Stusmoke on January 13, 2013, 09:52:24 AM
Keep her pinned
