swapped a yz250 motor into a blaster, replaced rear swing arm with warriors swing arm along with warriors disc brakes and rear axle...

Dyno tested modestly. pushing 30HP at the rear wheels at 5000RPM

have not taken it to the 9000 rpm mark where at the rear wheel I should get a 40HP or more reading.... stock a YZ250 motor pushes somewhere around 47HP at he crank and about 40 at the rear wheel...

Video can be found here!

more coming soon!
watch it here
http://www.youtube.com/watch?v=4vDse3IbpOs

 

Wow, nice. What modifications do you have to do to get everything to work right. Is there any frame fabrication?

Is it as easy as throwing one in and letting it rip?

 

no , the frame has some custom welds for the exhaust mounts.... you probably could figure out another way but its pretty simple to just weld some brackets onto the frame.

Obviously one thing you will want to do once you get the motor installed is test your setup... Depending how you feel maybe adjust your sprocket size, there are a ton of possibilities here. When I have more time I will post some pics...

I would have to say before I go the warrior rear end and the warrior disc brakes is the most dramatic of ride changes...

To simply answer your question, yes it pretty much is drop a motor in and bolt it down... like i said you may have to make a few custom welds but really this is nothing.

 

heres a buld sheet for the quad

Frame- 88-02 blaster
Steering stem-88-91 warrior
Brakes- 88-91 warrior
Swing arm- warrior, all years
Axle- warrior, all years
Suspension: Back adjustable Shock from Yz as well
Wheels, tires- 06 Yfz450
Hubs- warrior, all years
Engine- 93 yz250
Cdi ignition box- 93 yz250
ignition coil-blaster, all years
Radiator- 93 yz250
Exhaust- Blaster, full fmf, yz engine flange welded on

 

Thanks ill have to try that.

 

how many horsepower does a blaster bored to 240cc push?

 

With reguards to the Warrior rear end was there any modifications required or was it a bolt on and go?

 

bolt and go for the warrior rear end...

most of the list above was bolt and go ..

 

<div class="FTQUOTE"><begin quote>Originally posted by: Jabes

how many horsepower does a blaster bored to 240cc push?</end quote></div>


I would think less then a yz250 motor... Stock I believe the 200cc motor that comes in the blaster pushes 17hP... So I would assume maybe somewhere around 22-25hp bored out.. someone have any idea?

 

how did u mount ur front brakes?????? im having issues using banshee spindles with blaster a arms and upper ball joint giving me grief