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'71 frame
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Topic: '71 frame (Read 2055 times)
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YUMASTEPSIDE
Legend
Posts: 802
'71 frame
«
on:
February 24, 2008, 04:24:55 pm »
Does anyone know if the '71 MC250 frames were mild steel or chrome moly ?
Roger
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firko
Guest
Re: '71 frame
«
Reply #1 on:
February 24, 2008, 05:33:49 pm »
Chrome Moly
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Freakshow
Superstar
Posts: 7277
Adelaide, SA - looking for a "YZA" tank
Re: '71 frame
«
Reply #2 on:
February 27, 2008, 12:38:38 am »
ON a side note how do you tell the differances of the metal if you wante to confirm it ? magnet ?
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74 Yamaha YZ's - 75 Yamaha YZ's
74 Yamaha flattracker's
70 Jawa 2 valve speedway's
For sale - PRE 75 Yamaha MX stuff, frame, motors and parts also some YAM DT1,2,A and Suzi TS bikes and stuff
PEZBerq
Legend
Posts: 1094
Brisbane
Re: '71 frame
«
Reply #3 on:
March 05, 2008, 10:56:01 pm »
Nope. Both are magnetic.
I know a metascope analyser will do the job - a portable machine that detects the Chromium in the spectra. Dont know any simple way sorry. Anyone else know about metallurgy?
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Husqvarnas: 78 390AMX, 82 430XC, 84 240WR, 84 500AE, 84 510TE, 87 510TE
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'71 frame