122 cyl can be used to bore up to +/- 140 cc (cb550 piston)
124 cyl for up to +/- 150 cc (cb750 piston)
stroking the engine is not evident: if you're not able to do it yourself > expensive.
(maybe look for a 200cc engine will be easyer? (tlr, ...))
The seeley framed 250cc bike lejeune (& hattori (?)) rode in the 1980 SSDT was the RS250T, it used another type of cylinder (external oil pipe to be used because the big bush cut through the internal oil channel).
I believe those engines have never been for sale.
I think this is an individual/shop conversion rather than a Honda works bike: why would they use the cylinder of their new tlr in a +/-4 year older (design) bike?
tom,
the pdf is for the tl125s model, yours is the tl125K.
you will notice there are some differences (like the alternator...).
but the kit that is mounted on this one was available with the lighting coil included,
(so i presume it will be bolt inside the alternator)
various pistons (61mm) are used for big bores,
i'm sure most honda dealers can help identify your piston.
(the miller version uses a honda cb750 piston)
on the RS200TS (same engine) the carb is the same 22mm as the SL125 and TLR200.
main jet=105 (available 90-120), slow jet =38
although the engine was assembled by RSC, i think it's all standard honda meccano:
http://tl.125.free.fr/MV102.htm
(at the end of the article you can see whats parts are used)
