Technical help for Series one, two and three Lambrettas. Models include the Li, Li Special, TV, SX, GP, Serveta and API/SIL models
by superhooper » Sun Apr 12, 2026 8:46 pm
Hi peeps, checking my engine internals over i noticed that the front sprocket spring could be turned by hand without a great deal of force (no movement in and out) . Is that ok or should i replace it with a new one.
Super
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superhooper
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by coaster » Fri Apr 17, 2026 8:01 am
Interesting question, Ive got mine in bits atm for the same reason and will check on Sunday when I get back up the Norfolk

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coaster
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by DaveTomo » Sat Apr 25, 2026 11:43 am
Just checked mine whilst doing a top end rebuild.Mine cannot be turned by hand as it is under pressure/ load.Did have it on an old original Innocenti spring fitted before which if I remember rightly did turn by hand which is why I changed it.Now have one of the red Casa ones fitted which cannot be turned by hand and handles the torque very well.Hope this helps
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by superhooper » Mon Apr 27, 2026 9:50 pm
DaveTomo wrote:Just checked mine whilst doing a top end rebuild.Mine cannot be turned by hand as it is under pressure/ load.Did have it on an old original Innocenti spring fitted before which if I remember rightly did turn by hand which is why I changed it.Now have one of the red Casa ones fitted which cannot be turned by hand and handles the torque very well.Hope this helps
Thanks, i ordered a red casa one last week but have not had time to fit it. Will report back on outcome.
Regards
Roy
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superhooper
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