lurching

[willow]

Hi guess im new to all this so be gentle. need a bit of help.problem is when I change down gears from 4th to 3 rd at any speed over 10 mph the back wheels seems as thou it wants to lock up and feel like you have hit the brake for a second.apart from this the scooter and gears are fine the rest of the time .any ideas please.

[sean brady scooters]

sounds as though you may just be changing down a gear without bringing the revs up to match the higher ratio ,try "double de clutching "

[ducksta]

What engine is it as I know lml engines do this from time to time

[willow]

Tried double dipping the clutch as for the engine its a t5 I would understand if I was doing it at a higher speed but not 10 miles an hour.under the 10 mph and it fine. Could it be crusiform or cush drive .I'm only guessing.

[mickymidas]

Cruciform wear is usually indicated by jumping out of lower gears when changing up. May be you just have a good clutch in, try letting the clutch lever out slower when changing down so it's not snatching when the clutch is dis engaged ?.

[Shaunbond]

What's it like for a standing start in first? If it lurches and possibly makes a dry creech sound its the clutch. As Dusksta says LML clutches are known to do this, I've had 2 do the same, I swapped for two known good clutches and both were cured.

[Spreader]

Sounds like broken springs in the cush drive.