the xt's flywheel has only a mark for idle advance, so even if you manged to see it through the tiny M8 hole while pointing a strobe, it will not tell you anything about the advance curve.
so you need a timing/degree wheel too and attaching it to the crank is not that easy on an xt.... done it to adjust my supermono road racer ignition, but it involved turning an adaptor instead of the flywheel nut, plus some sort of sealing of the oil splashing behind the cover.
but that was worth doing in a very highly tuned motor. the stock TCI ignitions are so reliable that you never need to really check timing with a strobe, even less so the advance curve. personally i think that you are barking under the wrong tree.
AFAIK all the TCI's for 1990 and up xt's, including the carb'ed 660's will work. CDI's are a totally different principle, need different flywheel/stator
Last edited by turboguzzi; 15 Feb 2017 at 22:12.
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