it's marked as MIKUNI KOGYO IM-4. after googling it i found one at an aussie breakers yard, but it just says suzuki or kawasaki, but it doesn't say which model. this came with a load of suzuki t250 bits i bought, but it definitely isn't off a t250. also checked t20 and t200, but they are nothing like :haw:
cheers, gil.
oil pump:
(https://i.postimg.cc/9XwYyDmH/mikunioilpump.jpg) (https://postimg.cc/t7y6jCnB)