Lit feng chin che 2 gik chuk chuen suet
Kawasaki LEO SE Two-stroke 120cc. Made by Kawasaki Motors Enterprise(THAILAND)co,ltd. newer version picture http://www2.sen-shu.ne.jp/yatakarasu/private_manual/thai_kawasaki.jpg
It says "Honda" below "Rothmans". Maybe an NSR ?
1994 Honda NSR250R SP (Rothmans color)
Honda NSR 50? http://www.bikez.com/motorcycles/honda_nsr_50_r_2004.php
1995 Honda NSR 250 R SP Repsol Honda Color. (MC28)
It's strange customized bike. Interval of front fork on either side has extended by using spacer. And black exhaust-pipe is seen behind the fork...it's inline four cylinder. Engine is black and seems older generation from width. Generator and ignition point cover is plain surface aluminum (not buffed or clear paint coated). I guess it's customized Kawasaki Z750 (1973-78) from both alminum cover shape and width.