250 kicker like cement

You want to flush all the debris from the piston failure out of the crank case which is the area you picked the pieces out of, the gear case is under where the oil fill plug is located, this is totally seperate from the crank case on a 2 stroke like yours. But run the diesle thru the crank case, rotate the crank a few times, dump out diesle pour some more in, and repeate this untill it looks like no more material is coming out with the last rinse.
 
So this is a separate plug that I can open to flush crank case is it on bottom like my gear oil plug or on side of engine ? If I ever get right piston n get all together with no leaking which includes the radiator hoses I'll be amazed
 
So this is a separate plug that I can open to flush crank case is it on bottom like my gear oil plug or on side of engine ? If I ever get right piston n get all together with no leaking which includes the radiator hoses I'll be amazed

Pour it in thru the top of the open case where the cylinder would bolt on, swish and rinse, it is helpful to have the engine removed while doing this also. All we are doing here is getting the diesle to get into the hard to reach areas and flush out the little bits of aluminum and whatever else fell in there. This is done to prevent premature bearing failure of the lower end which is in the area of where you are performing the flush.

Dump fuel in thru here, then do procedure I stated above.

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SRAD97750

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OMGOODNESS... I LOVE engine porn...:drool: I mean carnage... I mean, Sorry for your loss. :salute:

With that kind of debris, I would be splitting cases to be sure it's all out of the crank/bearings.
While it's apart, have a good look through the transmission for worn bearings, loose shafts, broken teeth, etc...-BIG DAN:thumb:
 
Pour it in thru the top of the open case where the cylinder would bolt on, swish and rinse, it is helpful to have the engine removed while doing this also. All we are doing here is getting the diesle to get into the hard to reach areas and flush out the little bits of aluminum and whatever else fell in there. This is done to prevent premature bearing failure of the lower end which is in the area of where you are performing the flush.

Dump fuel in thru here, then do procedure I stated above.

View attachment 29497
Pour it in thru the top of the open case where the cylinder would bolt on, swish and rinse, it is helpful to have the engine removed while doing this also. All we are doing here is getting the diesle to get into the hard to reach areas and flush out the little bits of aluminum and whatever else fell in there. This is done to prevent premature bearing failure of the lower end which is in the area of where you are performing the flush.

Dump fuel in thru here, then do procedure I stated above.

View attachment 29497
So there is no drain bolt ? I pour per mix or diesel but how do I drain that? Sure I sound stupid but like I said I'm 51 don't care too much what anyone thinks about me. Hehe
 
Ignorance is not knowing
Stupid is not caring to know

ignorance is curable :)

You have to dump it out. There's no drain for the crank.
I have used cheap oil for this and prefer the oil as I think the thickness helps to suspend the bits better. I've taken tie downs and hung bikes from the ceiling before. Had to get a ball bearing that fell into the bottom. I've taken an air compressor and trigger with a length of hose attached and fed the hose inside and blew clutch debris out of crevices. After the oil drains out into a bucket I run it through a strainer and reuse the same couple quarts over and over until I'm satisfied. Like Steve said it's easier with the motor removed. When this thing DOES run again you will feel the pride. Nobody ever knows what they're doing the first time they do anything. Nice goin so far :thumb:
 
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Ignorance is not knowing
Stupid is not caring to know

ignorance is curable :)

You have to dump it out. There's no drain for the crank.
I have used cheap oil for this and prefer the oil as I think the thickness helps to suspend the bits better. I've taken tie downs and hung bikes from the ceiling before. Had to get a ball bearing that fell into the bottom. I've taken an air compressor and trigger with a length of hose attached and fed the hose inside and blew clutch debris out of crevices. After the oil drains out into a bucket I run it through a strainer and reuse the same couple quarts over and over until I'm satisfied. Like Steve said it's easier with the motor removed. When this thing DOES run again you will feel the pride. Nobody ever knows what they're doing the first time they do anything. Nice goin so far :thumb:
Well all your guys input has helped me big time Thanx for putting up with all the questions
 
CZ's are famous for the small plug coming out. Magazine writers and people who have NEVER ridden one or seen how one runs when the plug falls out are famous for telling others that it is like riding something with the throttle stuck wide open.
 
Ignorance is not knowing
Stupid is not caring to know

ignorance is curable :)

You have to dump it out. There's no drain for the crank.
I have used cheap oil for this and prefer the oil as I think the thickness helps to suspend the bits better. I've taken tie downs and hung bikes from the ceiling before. Had to get a ball bearing that fell into the bottom. I've taken an air compressor and trigger with a length of hose attached and fed the hose inside and blew clutch debris out of crevices. After the oil drains out into a bucket I run it through a strainer and reuse the same couple quarts over and over until I'm satisfied. Like Steve said it's easier with the motor removed. When this thing DOES run again you will feel the pride. Nobody ever knows what they're doing the first time they do anything. Nice goin so far :thumb:
Did the pre mix flush of crankcase opted to flip bike over kinda scared to take off whole motor looking at it now wondering how I'm ever going to get it back together
 

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Did the pre mix flush of crankcase opted to flip bike over kinda scared to take off whole motor looking at it now wondering how I'm ever going to get it back together
So now guess I need to measure my old piston with calipers? To find out size or measure where piston pumps up n down the cover? Don't know what its called
 
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