Flushing 2 stroke bottom end... Metal shavings magnetized to crank

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6/19/2018 7:52 AM

After flushing crankcase of my 97 rm80 all of the metal shavings contained stuck to the flywheel side of the crank. Photo

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6/19/2018 7:55 AM

Our resident RM80/85 expert Tyler should be here shortly to assist.

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6/19/2018 8:05 AM

Thank you

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6/19/2018 8:10 AM

I am by no means an engine guru, but me thinks that you'd get better results by removing the flywheel aka the big magnet on the side of your motor...

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Positively, absolutely 110% obsessed with anything MOTO.

6/19/2018 8:13 AM

It is removed, but the metal shavings aren't stuck to that. With the flywheel being so close to the crank I guess it magnetized it. I never had this issue, this is also my first 2 stroke. Do u think there is a way to demagnetize the crank so I can just flush it completely?

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6/19/2018 8:18 AM

Where are you at in Pittsburgh? Also, you should post this in the "Tech Help" section of the forum so you don't get trolled.

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6/19/2018 8:24 AM

Run it man. Them 2 strokes are reliable af

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6/19/2018 8:25 AM

Will_Frank wrote:

It is removed, but the metal shavings aren't stuck to that. With the flywheel being so close to the crank I guess it ...more

There should not be metal shavings in there, your crank bearings are probably trash.
You need to split the cases and clean / inspect everything. You'll never get 100% of that crap out without disassembly.

You can demagnetize the crank using a tool demagnetizer. Basically it's just an electromagnet connected to alternating current.

https://www.amazon.com/HHIP-3401-0602-Heavy-Demagnetizer-115V-Single/dp/B00N40U4GS/

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6/19/2018 8:26 AM

RoflCopter726 wrote:

Our resident RM80/85 expert Tyler should be here shortly to assist.

BRAKE WARTON PAST ME SO FAST AT CYCUL RANCH I FLUSHED MY BOTTOM END

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6/19/2018 8:28 AM

Yes I'm in Pittsburgh, I do not know how to use this website lol. The reason I have metal shaving was because I ate 2 pistons in it already, the crank bearings are strong. Good point though, the only issue is that the original owner tried doing some work in it and rounded and stripped out alot of nuts and bolts in there

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6/19/2018 8:30 AM

Photo
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6/19/2018 8:32 AM
Edited Date/Time: 6/19/2018 8:32 AM

Will_Frank wrote:

Yes I'm in Pittsburgh, I do not know how to use this website lol. The reason I have metal shaving was because I ate 2 pistons ...more

Will_Frank, meet Dan_R Charles. He joined yesterday and you today. You two should get along just fine under that bridge you share.

https://www.vitalmx.com/forums/Moto-Related,20/What-the-hell-to-do-with-a-kx450f-I-found,1341976

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6/19/2018 8:32 AM

if you think the metal shavings are piston mateiral then your crank aint magnitized pistons are aluminum, and yes your splitting the cases like it or not

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6/19/2018 8:35 AM

CW is right, the only way to insure that all the "bad" things are out of there is to disassemble. You state that your crank bearings are strong, but if you've destroyed 2 pistons and have left behind all that debris AFTER you've cleaned it, I can assure you that keeping those crank bearings in there will be a monumental mistake. Take the time and do it right, you'll be much further ahead.

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6/19/2018 8:39 AM

Good point, didn't even think of that.. I kinda knew I had to but was trying to avoid it as much as I could lol. I wonder what it could be from the because all of my bearings are solid. When it ran it, it ran strong and smooth... Tbh I feel like the previous owner got all that shit in there

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6/19/2018 8:40 AM

You are absolutely right

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6/19/2018 10:38 AM

Probably still munching on stray metal that was never cleaned out properly from the first blow up. When you think it's clean, throw another piston in it, start it up, and you will know soon enough if it's still regurgitating tramp metal from blow ups gone by.

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6/19/2018 6:08 PM

I SHOWED THIS TO A GUY FORM THE SHOP CALLED SNAKE THAT 1 TIME WAS IN TEXAS CHAMPIONSHIP WRESSELING AND DOSE NOW A MECANIC HE SAY TO FILL UP THE CASE WITH GAS PUT ON SAFTY GOGGILS AND PUT A AIR GUN IN IT ON THE FULLIST BLAST AND STAND BACK HE ALSO SCARED THE BARINGS GET DRY SO HE SAY MAKE SURE THEY USE A JREASE GUN AFTER

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suszuki rm85

6/19/2018 6:10 PM

First of all are the old rings broken? Cuz , uh..... Piston pieces aren't magnetic......

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when in doubt, pin it out

6/19/2018 6:13 PM

Again, piston ( aluminum) isn't magnetic. Soooooo, if the old rings , wristpin, and wristpin bearings are intact, u need to have a long look at the crank and rod bearing in the big end, as something is supplying u with steel, lol and it isn't your piston I promise

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when in doubt, pin it out

6/19/2018 6:26 PM

Split the case and do it right!

Paw Paw

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6/19/2018 7:29 PM

Piston dandruff sucks.

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6/19/2018 8:09 PM

tylermx967 wrote:

I SHOWED THIS TO A GUY FORM THE SHOP CALLED SNAKE THAT 1 TIME WAS IN TEXAS CHAMPIONSHIP WRESSELING AND DOSE NOW A MECANIC HE ...more

Lol!

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6/19/2018 8:21 PM

Flip it over like your huffy bike, spray the fuck out of it with parts cleaner, than suck it with a shop vac

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6/19/2018 8:31 PM

You may want to spin the crank around by hand. My guess is that the problem will be really obvious. Happy case splitting

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6/19/2018 8:34 PM

tylermx967 wrote:

I SHOWED THIS TO A GUY FORM THE SHOP CALLED SNAKE THAT 1 TIME WAS IN TEXAS CHAMPIONSHIP WRESSELING AND DOSE NOW A MECANIC HE ...more

That is just frickin wicked redonkulous.

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6/19/2018 8:39 PM

tylermx967 wrote:

I SHOWED THIS TO A GUY FORM THE SHOP CALLED SNAKE THAT 1 TIME WAS IN TEXAS CHAMPIONSHIP WRESSELING AND DOSE NOW A MECANIC HE ...more

This is why I love this place hahahahaha

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6/20/2018 8:38 AM

just run it... what could wrong!? wink

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Don’t piss off the old people - the older they get the less “life in prison” is a deterrent for them!

2020.5 KTM 450 SXF FE
2006 KX250

6/20/2018 8:46 AM

tylermx967 wrote:

I SHOWED THIS TO A GUY FORM THE SHOP CALLED SNAKE THAT 1 TIME WAS IN TEXAS CHAMPIONSHIP WRESSELING AND DOSE NOW A MECANIC HE ...more

See, I told you guys Tyler would be here.cool

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