Hello Russel, I believe the small adjuster rods should be straight. Also check that there is no excessive play in the lower rubber bushes (the ones fitted to the gear change column arms). Any slack in this area will lesson the amount of movement the rods will have to engage a gear.
Hope the picture helps, kind regards Charles Gough
No problem, my number is in the year book which you should get in the post any day now. Ping me a message by WhatsApp / Text / Email and we can sort it out.