yz250f motor swap!

bakenblaster

New Member
Feb 1, 2008
3
2
0
albertville, mn
I did a yz250f motor swap. I bought the dirt bike complete. i had to make motor mounts, cut and raise the frame, radiator mounts, coil mounts, modify the swing arm, used a yfz450 oil rez, the swing arm bolt did not fit the motor so i made a sleeve to fit in the motor mount. I also made my swing arm 5 inches longer by using 2 stock swing arms. It also has +2+1 arms with spacers, works triple rate raptor shocks, and 400ex rear shock that i don't like. This thing is great its as fast as a raptor 700 for 100 yards then the raptor pulls. Riding on the track or trails this thing is great!!
 

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Reactions: Cjwilds75
I:I Beautiful! I:I I'm die hard 2-stroke fan but that there is nice work.. What size sprockets are you using? Gotta go back & look at the pix some more.

Otis
 
I love 2 stroke's also i went through 3 top ends in 5 years i got sick of it when i go trail riding i had to re-jet 3 times a day. when you modify a blaster with as much as you can they get touchy!
 
very nice job, try the 450r rear shock, i have one and luv it, oh, and i think i've seen that frame color before, looks great
 
Looks sick, but I hate the color combo. There was a few things about it that bugged me like the spacers, but other than that I'd love one. How are valve adjustments going?