The E-Choke is a typical wearing part. It is often defective. A defective e-choke might either result in starting problems with a cold engine or a too rich and thus stuttering warm engine. We can offer you cheap and good replacement for all current original carburetors.
SIP-TIP: A broken reed valve petal might also cause the above mentioned problems. A simultaneous check of the petals is therefore recommendable.
OEM Numbers (for the purpose of comparison)
B53078B (MALOSSI), 479093 (PIAGGIO), 5307800 78 (DELLORTO)