yfz engine 350 frame

[floridaredneck]

How hard would it be to put a yfz 450 engine into a 350 frame? Theres a couple on ebay for $500 and that about the same price as a 12:1 piston, cam and bore. So with a bit of welding and grinding will i be able to get a 450 engine in?

 

[topdwg]

Wow if you can get a 450 motor for $500 you need to jump on that. As for how hard it would be, I'd imagine it would be pretty difficult. You're just looking at a lot of man hours and some patients. Also don't forget about the carb and those aren't cheap either...

 

[missouritrailrider]

more people should comment on this one it would be sweet

 

[floridaredneck]

There was one on ebay for the price but its up at $700 now. Im trying to get the measurements of the yfz engine.

 

[yamarider]

I dunno, you better have a good bit of experience before you dive into this one. That motor probably won't be even close to lining up on any of the mounts, and you'll have to make damn sure that the sprocket lines up right, which could mean the engine being offset to one side. You don't even have a guarantee it'll fit in the frame to begin with. And then you'll need a carb to go with the engine, there's at least another 200 bucks, and a complete wiring harness and the other electrical **** that goes with it, like the CDI. This could get real expensive real quick, and it'd be a lot of work. The end result if done right would be a machine that's fast as hell in a straight line if you can keep the front end down, but good luck actually riding it in the real world because it's going to be all over the place with that much power and the wimpy stock suspension. By the time you go through all the trouble to swap the engine, and build up the suspension to keep the thing under control, you'd probably have enough into the raptor to actually buy a yfz and without all that work and time put into it.

 

[jasonp]

Yeah.. well that is the thing here is that you have a dated design frame and a powerhouse engine. So you're going to need some suspension mods as well.
Not only will a lot of the electrical but cooling **** you'll have to mount and get. Lots of money.

 

[97warriorrider]

Your just better of buying a yfz..If you did the motor swap you would have all that power but you dont have the chassis to use it

 

[floridaredneck]

Yeh i know the chassis sucks but I'm not worried about that. Just will the yfz 450 engine get remotely close to fitting?

 

[throwinroost35]

i am in the process of putting a ninja 500 motor into a YFM. its going to be mainly used for ripping up fields but i know im going to need a hefty suspension under it

 

[floridaredneck]

Do you have a couple pics?

 

[97warriorrider]

no..The yfz motor will prolly not even come close to fitting..if you were to do this you would need to have a place for the radiator and all the coolany resoviors that a yfz has..Its really not worth it

 

[warriorguy5]

i have a yfz i just reddid my clutch today , i can take some measurements for you belive it or not the yfz motor is actully smaller than the warrior. What measure ments would you like me to take? i would be prity nasty motor for the warrior if your up for if it go for it projects are always cool ,

 

[floridaredneck]

Thanks trailwarrior.

Can you get a measurement from the bottom engine mount and the top engine mount, then one from the bottom engine mount to the back engine mount. Also can you get a couple detailed pics of the engine mounts.

Thanks.

 

[97warriorrider]

Yes..it may be smaller but in a way that could make all the other alignments worse..What ever floats you boat

 

[teamexileracing]

didnt somebody on here do that to there warrior, then he made his own a-arms and stuff for it. He also had a vid of him flying around his yard in the snow. Does anybody even know who im talking about?

 

[yamarider]

That was done with a Honda CBR600 motor (if I remember correctly) and it took him a **** TON of fabrication to do it. He had to do some extensive modifications to the frame to get it to fit, and a few other special things related specifically to the powerplant he chose because of it being fuel injected and everything. The yfz engine wouldn't be that bad though, but there will still be a lot of fabrication involved.

 

[kreed5821]

That one was for sale in the classifieds a while back. Cool bike though. Could you imagine the poor kid on a yfz who trash-talks that warrior before a drag race? lol

 

[warriorguy5]

Alright i did my best to get you some measurement these are not exact its kinda hard to get a type measure up in some of these spots so i did my best to get them as accurate as possible.



#1. front motor mounts.

#2. This is the rear bottom mount under the motor.

#3. This is the bottom under the motor in the front. (very crappy picture sorry.

^ The motor also mounts into the swingarm i could not get that measurement due to how cluttered it is. I will give it another attemp tommorow for you.

Feel free to ask me anyother question and ill be happy to see if i can help you with it.

 

[floridaredneck]

Can you try to get where it mounts onto the swing arm, also the pic of the rad and a measurement of that.


Thanks

 

[dave76]

Dude forget it all motor mounts are going to need to be fabricated. Thats means cutting off the old ones fabricating new ones and welding them on. Like somone said earlier were are you going to fit the radiator, Jonaddis put a CBR600 motor in a warrior but basically cut the warrior frame to pieces and fabricated everything else. It's not that hard to do if your fabrication skills are good and you know how to tig weld. If you've never done anything to this caliber before it's going to cost you a lot of time and money. Your best bet either buy a whole YFZ or look for a used race frame that'll accept a YZ/YFZ motor.