jonpaul03

I also have a 1978 gen 1 brat

owned since it was new in 1978

and have enjoyed it thru the years, it's bullet proof.

the issue you are having with the starting seems the be part and parcel of the weber carb design

I started having the problem when I replaced the orginal Hitachi carb (tended to develop vacumn leaks.

Replaced it with the same carb you have i still have the elect chock on it  though.

Had to finally get it adjusted but a mech who has the old emissions testing (tail pipe)equip.

Runs great since then, except when I let it sit too long and it's cold.

Then I have to use eather and spray the carb to get it to start.

 As long as I do not let it set for more than 2-3 weeks it starts right up in the morning.

I also have recently added an AC system (needed here in Tucson)

I have had wiring issues  since installing it but getting it worked out.

 Had you made sure that you do not have some of the orginal brat wiring connectors hooked up (do need /want) the wire for the anti dieseling switch tied to anything And hopefully you have the vacumn line fittings that are not needed with the Weber carb sealed off.