Gear box oil breather spring Moto Guzzi

1000 SP, 1000 DAYTONA, 1000 S, 1000 SP II, 1000 SP III, 750 S, 750 S3, 850 LE MANS, 850 LE MANS II, 850 LE MANS III, 850 T, 850 T3, 850 T4, 850 T5, CALIFORNIA 1000, CALIFORNIA 1100, GT850, LE MANS 1000, QUOTA 1000, QUOTA 1100, SESSANTACINQUE GT, V1000 G5, V1000 IDROCONVERT, V35, V35 C, V35 FLORIDA, V35 II, V35 III, V35 IMOLA, V35 IMOLA II, V35 NTX, V35 TT, V50, V50 C, V50 II, V50 III, V50 MONZA, V65, V65 C, V65 FLORIDA, V65 LARIO, V65 NTX, V65 SP, V65 TT, V7, V75, V75 NTX