TS100(letter)_ last digit leater told.
100cc old name dual sport bike street /trail. (sold mine in 1974)
2cycle engine, oil + gas, like a hedge trimmer.
no year told 1973 to 1981 sorry cant guess it.
well buy the shop manual. ? I did for all cars and motor cycles owned .just buy it and read and not do it wrong,ask web persons blind./
i get 100s of hits googling the cheap manual
the first time used, it saved you 4 times shop labor using, SO IS FREE. (ROI of instant)
some had CDI , ignition
I guess you never notices the slots on the base plate.
gap set first then timing is last at the 3 slotted mounts
see x3 there are 3 slots best is leave those alone , lacking a timing light ! TOOL
Ignition Points gap should be 0.35mm (0.014)
(rumor, sorry not buying you book for you)
that is the MAG /POINTS base plate,
special tool to get flywheel off. and not wreck it.