1979 XS750 won't start without starting fluid

750triples

1979 XS 750
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Location
Canada
Hi all,

As the title says, my bike won't run unless I hit it with a little bit of starting fluid.

Once the bike is warmed up, it starts no problem, no starting fluid required. Don't worry, I've only used starting fluid on it a few times to try and tune it.

Obviously the bike is running too lean, even with choke on startup. I just put on a new Delkevic exhaust and pod filters, so I went 2 sizes up on the pilot jet, and 3 up on the main jet.

I previously had the carbs at 3 up on pilot and 4 up on main, but it still wouldn't start when cold.
 
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