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steashy27

copper shavings in oil ?

8 posts in this topic

Hi all ,

have bought 00' 426. The last 3 oil changes have

found copper coloured shavings along with the usual metal shavings as per previous postings .Has any one got any ideas .

Have taken off head and cylinder to check crank .NO PLAY and within tolerances .

cheers Steashy27

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Oil drain bolt washer may be made of copper (or brass), as well as the frame tank drain bolt washer....other than that I can't think of anything else made of copper/brass? Valve guide/seals? :devil:

Thats a good one....? :thumbsup:

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The only thing that I can think of in the motor is the brass bushing in the clutch basket I would look in the clutch Most stuff you find in your oil is from the clutch

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The only thing that I can think of in the motor is the brass bushing in the clutch basket I would look in the clutch Most stuff you find in your oil is from the clutch

The clutch would be my first guess too. There is usually a brass bushing attached to the basket. Take it apart and check before something lets go.

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Stators have alot of copper in them, it might be a good idea to pull the left cover and take a peek.

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I'm not sure about yamaha engines, but in car engines when the crank or rod bearings start to go out, there can be copper looking shavings in the oil!

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I'm not sure about yamaha engines, but in car engines when the crank or rod bearings start to go out, there can be copper looking shavings in the oil!

Thats what I was going to say also. I recently bought a remaned 5.0 V8 from S&S Engine. About 2 week after driving it the motor started knocking like crazy at higher rpms. when I took it out of my jeep to send it back there was gold glitter like shaving every where.

As far as dirt bike motors go :thumbsup:

let us know if you find the problem :devil:

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