Alan Beckley
New member
hi i have a reasonably old 25 hp 2 stroke which upto now has been great but am now getting problems with rough idle and stalls when i drop it back down to idle or try to accelarate away after dropping it back it wont start again unless i prime the bulb on the fuel line then will run fine at high rev but will still do the above if i drop the revs i have cleaned the carb and changed the plugs... is it likley to be the fuel pump diaphram ???? many thanks