Question about 1978 Yamaha TX 750

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I need to know what the marks on the timeing gear are in degrees the far right has a ''T'' under it and then there are 3 more the the left of that one what one is the 10 deg mark ?

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"T" = Top Dead Center, 1st mark to the left is 4 deg BTDC, 2nd mark to the left is 8 deg BTDC, 3rd mark to the left is 37 deg BTDC.
Above is shown in the drawing on this web page:

Also shown in the factory service manual under setting ignition timing. I no longer have my factory book, I gave it the guy who bought my TX750 in 2000.

Posted on Oct 13, 2009


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The T is top dead center the first make to the left is 10 deg

Posted on Apr 13, 2009

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Nice bike. I have an XLCH1000
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