Are you buying cheap aftermarket jets or oem? The information I'm reading here sounds pretty contradictory in nature. From what I have gathered it starts better with a 22.5 than a 25 without the lid, which would be leaner, however it starts better yet with the lid on (not the actual lid but taped up) than it does without the lid.... is this correct?
If so something is not quite right. 22.5 is leaner then 25. But yet no lid is leaner than taped on lid. If my interpretation is correct then leaner+richer starts good, leaner + leaner starts ok, but richer+leaner has to be pull started? Seems f'd up to me? Mine starts with choke, without choke, cold, hot, whatever it's not that fussy. Granted when it's cold it defiantly starts better with the choke, and when it's warm it starts better without, but I can go up or down two or three pilot jet sizes and not have a drastic effect on it starting.