Need some directions with jetting

[the boris]

Have trouble starting when cold,once hot starts no problem and pulls like raped ape.

Sea level summer California temps

 

K&N air filter

FmF fatties

Stock bore and stroke

Stock carbies 30 pilot and 290 main, needle in the middle

+4 timing

Cool head with 21cc domes

 

It's running rich but I'm not sure where, bottom, mid or top.

 

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[hoppedupandcutdown]

Does the choke not help? How cold is cold? Even though FMF recommends 30 pilots, it seems few people use that big of a pilot. Make sure you have the correct bowl in the left carb, indicated by the "BB"

[locogato11283]

So when you choke it when cold it doesn’t want to start?

I’m guessing too much fuel.

Try a 27.5 pilot.

[the boris]

Does the choke not help? How cold is cold? Even though FMF recommends 30 pilots, it seems few people use that big of a pilot. Make sure you have the correct bowl in the left carb, indicated by the "BB"

Any cold from 100f (40c) down to 40f (5c), seams to have no impact on difficultie of starting. It only started doing that after the rebuild, but I did change the set up so I knew the jetting wouldn't be right.
I will try smaller pilot and see how it goes.
Now when I go down with pilot should I go up with main to avoid getting lean on the top end?

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[locogato11283]

No. Only change one thing at a time also.

[the boris]

No. Only change one thing at a time also.

Thanks mate, makes sense to keep it simple.

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