Bonneville stalls when i engage first gear

So if you raise the revs to say about 4000 rpm and let the clutch out does it stall or judder or both will it engage at all and pull away ?

you have a bad safety switch. check them and replace the bad one.

probably crappy Ignition wires

It is def the clutch.

Does this model have a switch on the side stand. If so it could be faulty and fooling the bike into thinking the side stand is down and stalling it for safety.

The side stand switch can work in cojunction with a clutch switch.
It still sounds like a side stand problem, check the wires and plug, use a multi meter to check the switch. If you didnt check it that way.
The switch may work but the stand is not pushing the contact far enough

Does the neutral light work correctly?

Assuming it is not clutch drag with the bike jumping and stalling when put in gear

This problem should be re-tagged gv650.

It's not your clutch, it's the kickstand killswitch. I had the same issue.

If you look down next to your kickstand on the left hand side you'll see a silver switch (looks like a mushroom), follow the cables up to the front end of the chasis near the sump and you'll find a black connector with two wires coming out of it. You can either bypass the connector using a piece of wire or just do what I did and clip the wires, wind them together and crimp them in a connector.

Start your bike and hey presto - problem solved.

Hope this helps.

The bike has a sidestand interlock that prevents you from riding away with the kickstand down. That interlock is not functioning properly. Could have been bent or moved, unplugged, or perhaps the relay has failed. If physically activating the switch does not work, and connecting the wires with a jumper does not work start looking at the turn signal relay, some bikes have that circuit integrated into the relay.

Hi I am not entirely familiar with this model, but check if the side side has a switch. If this is faulty, this can stop the motor when placed into gear. Hope this helps

CHECK THE SIDE STAND SAFETY SWITCH IS OPERATING