I have a yamaha 2008 f40 (european model) with the known problems in the carburetors. I have changed the jets with those from f25 but I have a problem with the acceleration pumps, only the nozzle from midle carburator spray proberly.1 and 3 is clogged. I have also cleaned them in an ultrasonic cleaner without improvement.
I read in other posts that you can drill and make some modifications to these carburetors to make them work better but I can't find details on how exactly it is done.
I will appreciate any help.
I read in other posts that you can drill and make some modifications to these carburetors to make them work better but I can't find details on how exactly it is done.
I will appreciate any help.