YZ250 Crate Motor?

proC_class
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proC_class
Edited Date/Time 4/20/2022 8:09pm
Does anyone have a better idea than me if this is a latest gen yz250 2 stroke crate motor or one I have to assemble? Any information would be much appreciated.


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mxfuture
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mxfuture 4/20/2022 7:17am
4/20/2022 7:17am Edited Date/Time 4/20/2022 8:43am
proC_class wrote:
Does anyone have a better idea than me if this is a latest gen yz250 2 stroke crate motor or one I have to assemble? Any...
Does anyone have a better idea than me if this is a latest gen yz250 2 stroke crate motor or one I have to assemble? Any information would be much appreciated.


buy a new OEM cylinder, use an oem base gasket and get a stock pipe. My son's 02 YZ250 is as fast as my 21 now.

Oh, and get the 21 needle for the carburetor.

downvotes? You're just pathetic!

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GripNRip617
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GripNRip617 4/20/2022 7:38am
4/20/2022 7:38am
Idk pick up the phone and call Partzilla Huh
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-MAVERICK-
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-MAVERICK- 4/20/2022 8:02am
4/20/2022 8:02am
Engine assembly kit.
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yz133rider
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yz133rider 4/20/2022 8:45am
4/20/2022 8:45am
-MAVERICK- wrote:
Engine assembly kit.
What does that mean though?
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LungButter
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LungButter 4/20/2022 8:52am
4/20/2022 8:52am
mxfuture wrote:
buy a new OEM cylinder, use an oem base gasket and get a stock pipe. My son's 02 YZ250 is as fast as my 21 now...
buy a new OEM cylinder, use an oem base gasket and get a stock pipe. My son's 02 YZ250 is as fast as my 21 now.

Oh, and get the 21 needle for the carburetor.

downvotes? You're just pathetic!

Bro, you didn't answer his question, that's probably why the Bros downvoted you.
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mxfuture
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mxfuture 4/20/2022 9:36am
4/20/2022 9:36am
LungButter wrote:
Bro, you didn't answer his question, that's probably why the Bros downvoted you.
Fair enough.

Just thought I'd give him the hot tip to save some money. 🤑
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proC_class
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proC_class 4/20/2022 1:39pm
4/20/2022 1:39pm
GripNRip617 wrote:
Idk pick up the phone and call Partzilla Huh
I did and they said “uhh let us get back to you”. They never got back to me lol.
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proC_class
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proC_class 4/20/2022 1:41pm
4/20/2022 1:41pm
proC_class wrote:
Does anyone have a better idea than me if this is a latest gen yz250 2 stroke crate motor or one I have to assemble? Any...
Does anyone have a better idea than me if this is a latest gen yz250 2 stroke crate motor or one I have to assemble? Any information would be much appreciated.


mxfuture wrote:
buy a new OEM cylinder, use an oem base gasket and get a stock pipe. My son's 02 YZ250 is as fast as my 21 now...
buy a new OEM cylinder, use an oem base gasket and get a stock pipe. My son's 02 YZ250 is as fast as my 21 now.

Oh, and get the 21 needle for the carburetor.

downvotes? You're just pathetic!

I actually need a whole engine cause I’m buying a roller next week. I might look for a blown motor and rebuild it, but having a factory fresh engine would be nice.
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Falcon
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Falcon 4/20/2022 1:59pm
4/20/2022 1:59pm
The "KT" in the part number indicates it is a kit, or combination of other part numbers. My guess is that it is a big box full of little parts from which you can assemble an engine.
I don't think Yamaha sells a complete, assembled YZ250 engine.
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James_Saechao
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James_Saechao 4/20/2022 2:06pm
4/20/2022 2:06pm
proC_class wrote:
Does anyone have a better idea than me if this is a latest gen yz250 2 stroke crate motor or one I have to assemble? Any...
Does anyone have a better idea than me if this is a latest gen yz250 2 stroke crate motor or one I have to assemble? Any information would be much appreciated.


mxfuture wrote:
buy a new OEM cylinder, use an oem base gasket and get a stock pipe. My son's 02 YZ250 is as fast as my 21 now...
buy a new OEM cylinder, use an oem base gasket and get a stock pipe. My son's 02 YZ250 is as fast as my 21 now.

Oh, and get the 21 needle for the carburetor.

downvotes? You're just pathetic!

proC_class wrote:
I actually need a whole engine cause I’m buying a roller next week. I might look for a blown motor and rebuild it, but having a...
I actually need a whole engine cause I’m buying a roller next week. I might look for a blown motor and rebuild it, but having a factory fresh engine would be nice.
I know someone who's got one with missing numbers if you are interested.. (filed off)
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mxfuture
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mxfuture 4/20/2022 3:28pm
4/20/2022 3:28pm
proC_class wrote:
I actually need a whole engine cause I’m buying a roller next week. I might look for a blown motor and rebuild it, but having a...
I actually need a whole engine cause I’m buying a roller next week. I might look for a blown motor and rebuild it, but having a factory fresh engine would be nice.
We're a 3 rider family, so cost always dictates. If cash isn't a problem a new motor would be sweet!

our 02 was just o.k. until we made those changes. Now it's as fast and lighter. It only needs a fork now Smile

good luck
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proC_class
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proC_class 4/20/2022 3:52pm
4/20/2022 3:52pm
mxfuture wrote:
buy a new OEM cylinder, use an oem base gasket and get a stock pipe. My son's 02 YZ250 is as fast as my 21 now...
buy a new OEM cylinder, use an oem base gasket and get a stock pipe. My son's 02 YZ250 is as fast as my 21 now.

Oh, and get the 21 needle for the carburetor.

downvotes? You're just pathetic!

proC_class wrote:
I actually need a whole engine cause I’m buying a roller next week. I might look for a blown motor and rebuild it, but having a...
I actually need a whole engine cause I’m buying a roller next week. I might look for a blown motor and rebuild it, but having a factory fresh engine would be nice.
James_Saechao wrote:
I know someone who's got one with missing numbers if you are interested.. (filed off)
Possibly, how much would he want for it? Email me at tayloranderson201@yahoo.com if you could.
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mb60
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mb60 4/20/2022 4:34pm
4/20/2022 4:34pm
Honestly I thought Yamaha has been selling complete motors since the 80's. Never bought one but mini sprints were using yz 250 motors in the mid 80's.
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AngryBear
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AngryBear 4/20/2022 5:53pm
4/20/2022 5:53pm
zero percent chance thats a complete engine @ $2k when just an aftermarket crank/topend rebuild kit is $700
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zehn
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zehn 4/20/2022 7:25pm
4/20/2022 7:25pm
Labor/assembly cost makes a crate motor prohibitively expensive. Buying a kit like that would make a good winter project though
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