Hello
Looking for a bit of advice/knowledge if possible, i got hold of a second hand MTB , its a decent bike but there is an issue with the front derailleur not moving up, basically when you go from 1 to 2 there is very little resistance on the lever and hardly any tension on the cable, the derailleur moves outwards but then springs back a little and does not change gear, however when going from 2 to 3 there is resistance on the lever, tension on the cable and the gear change occurs but only on to the second cog, the derailleur also moves over and stays solidly in place.
I have checked the indexing, alignment, limit screws and messed around with cable tension both at the barrel and at the cable locking nut but no success at all, i am thinking that the issue must be with the shifter, maybe needs cleaning but cant work out why the change from 2 to 3 on the lever works perfectly "although only moving to 2) whilst going from 1 to 2 seems so slack ,will not shift and springs back when the lever is released.
Anyone any ideas/suggestions ?
Thanks
Looking for a bit of advice/knowledge if possible, i got hold of a second hand MTB , its a decent bike but there is an issue with the front derailleur not moving up, basically when you go from 1 to 2 there is very little resistance on the lever and hardly any tension on the cable, the derailleur moves outwards but then springs back a little and does not change gear, however when going from 2 to 3 there is resistance on the lever, tension on the cable and the gear change occurs but only on to the second cog, the derailleur also moves over and stays solidly in place.
I have checked the indexing, alignment, limit screws and messed around with cable tension both at the barrel and at the cable locking nut but no success at all, i am thinking that the issue must be with the shifter, maybe needs cleaning but cant work out why the change from 2 to 3 on the lever works perfectly "although only moving to 2) whilst going from 1 to 2 seems so slack ,will not shift and springs back when the lever is released.
Anyone any ideas/suggestions ?
Thanks