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Only $10 for all 2026 SX, MX, and SMX series.
https://www.ebay.com/itm/YAMAHA-1993-1995-YZ125-YZ250-WICKED-TOUGH-DECA…
Will this be a good replacement? From a little research on thumpertalk this is what people are using and helps this engine run even better than before, especially on the bottom end.
https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Ful…
Final parts to clean up before the engine is ready to send off for rebuild!
Almost there!
The expansion chamber is looking super fine after lots of elbow grease and some new chemicals.
This last bit is a pain, but its coming along. Then ill polish it up with mothers then take a torch to it!
This new solvent I picked up is the bees knees. This after light scrubbing just to test it.
This is how they looked
The new chemicals. Lime-a-way attacks carbon and rust. I sprayed a bit on the power valve and its cleaning up nicely. It was originally chard black and reeked of carbon
My work area is a mess though. I'm prepping the KTM for a race this weekend so crap is everywhere
The Shop
DeCal Works Huge Plastic Inventory of UFO and Polisport kits.
Luxon 4-Post Bar Mounts
$189.95 - $239.95
And got a 04 yz250f parts bike to steal the shock, forks, brakes and swingarm. If anybody needs this frame let me know!
Gotta be the gel, the spray doesn’t work as good.
-Finally removed the lug from the cylinder.
-Working on cleaning up the power valve
-All parts from the 04 yz250f are off. I will need to get a 04 yz250 or yz450f bottom clamp as the 250f is two short
-working on mocking up the 95 with the 04 swingarm, linkage, shock and rear wheel. From my understanding the main difference is the inner bore of the steel bushing are bigger and a bit longer on the 04 to use a bigger swingarm axle. My plan is to use the bushing from the 95 trimmed to the size of the 04. The swingarm will bolt right up after!
-Some advantages of this is that you can use new wheel set, new brake parts, linkage ratio is much better, and parts are much easier to find!
I'll update with some pictures later tongiht
As you can see they stick out ever so slightly on the inside. This is due to the 95 using thrust bearings on the outside of the swingarm
Added the rear brake. Need some rear spacers.
Rear master mounts perfectly which removes the need for a reservoir.
You can see here the 04 250f stem is short
Take a guess!
The top fork tube coating has seen better days. May run them for a while until I can get the coated or replace with SSS forks
Also found small nicks near the lug. I'll have to do research on if I can fix this myself or not?
The perfect fork fluid...
as to be able to get rid of the reservoir, tube and bracket. Thanks for the tip!!
Pit Row
-Going to get the engine shipped off tomorrow!
-Subframe ordered!
-Front forks have 4.0 kg springs...I'm 185 so they may be a little soft for me.
-Currently working on removing bearings. The linkage bearings are giving me hell. I've take a torch to them then tried to press them out with a vise. I've gotten about a 1/4 inch of movement. Time to pull out the dremel!
-Still trying to decide what I want to do with the wheels...stick with the stockers or order some tusk wheels. May just use the stock wheel for now. I'm hoping to have a roller by the time the engine is done.
-My current plan is to go on a road trip to VA and have the motor installed by the mechanic who is part of the VetMx community. Then ride the beauty on a track out in VA with other VetMx members!
On my 08 Yamaha the dog bone piece had a shoulder and you have to pull them out the way they went in and cant push them through. Not sure on your bike see if you can post a pic or something.
But resorted to uses a standard hammer and waaa laaa
I think I can save these
An even more rare build would be to find an ohlins 360 kit when the bikes were raced in open class
Im sure you know but the 95 yz had 46mm forks and that 04 250f ws the first year for the 48mm forks. Hope to see some updates on this. I loved my 95 back in the day and long to build one again. When i sold mine to my boss at the time he used some of the gytr factory blue and white kits he bought(we worked at a yamaha dealer) to sell the bike when i went to college. He had a 95 with the 360 with the factory blue and white wvwn with the blue tank. My bike would have had a white tank on itas the navy blue was no longer for sale since 96 yamaha officially went blue.
Post a reply to: 1995 Yamaha yz250 resto (Attention Engine Gurus!)