I found some info from a powroll catalog I gunna leave here
1973-75 TL125 solid head
145cc Bore Kit - #00097 $250.00
61mm 9:1 Compression. lncludes piston, pin, rings, retainer clip, headgasket & sleeve (reguires Re-Sleeving
& Case Machining ). Oversize available,
9.5mm Stroker -ffi6012 $240.80
175cc with Bore Kit. Work done on your good stock crank assembly, parts (if needed) are not included in
price.
Camshaft - #{2853 $175.95 .295" ln I .280" Ex Lift. Torque grind, billet camshaft, no core required.
Heavy Duty Valve Springs - #24034 $65.00
Heavy Duty Clutch Springs -#16775 $21.00
I dont know if all, or any of his was done to my bike but food for thought