Thanks for all the replies.

@jakeyboy blocked with what? crap from the tank, are you using a filter? is the tank clean enough inside?

Hi, was going to use some clear tubing for the oil pump to carb piece of pipe/tubing on the Dt200wr, going to order some wind screen wash tubing from ebay. used this before on lc's and Dt's and it worked fine, well apart from once when my 200 partially seized when I was seeing if it would do a ton and I wondered if maybe it wasn't getting enough 2 stroke delivery but who knows, anyway does anyone know what the actual mm of tubing is that should be used or if its a tight enough fit should that be ok, 3,4 and 5 mm are listed, many thanks