honda st70

Hi iv got a 1973 honda st70 and the engine works fine. but wen the engine gets a bit hot it will start two splutter as l go to pull off from the lights in 2nd n 3rd gear iv put a new spark plug in and fillters on my fuel lines an new condenser and checked the points n kleand the carburettor does enyone no wot it could b thanks seany.

Have a look at the choke, make sure when you shut it off it closes completely.

Good luck,

Blue