Hi guys... I've recently aquired an aprilia sr125 of Sr Stef on this sight .... He told me the jetting was out... I have at the moment a kundo exhaust and a malossi e14 foam air filter. Is currently runs a 100 jet, and is great when cold, but when warm is sluggish and non-responsive. Could anyone tell me :- - What the standard jet size should be (dellorto 20.5mm i think?) - Approximate jet size with kundo exhaust? - With a kundo and filter? Could the sluggish engine be caused by jetting?
