joe stokes

Hi all I am a new member and would welcome any advice or comments about TR1's as I have just brought one. The bike is in exelent condition with only 13,000 miles from new but has a problem with the gear lever not returning to its central position making gear changes difficult. I think it is just the return spring broken or not seated propperly as the previous owner said that it worked properly before he fitted a new starter motor. Has anyone done one of these? Joe