misfire from cold that goes once warmed up

Hi guys i'm getting some misfiring from my ST1300 2002 31k on clock pan when i start it up from cold
once warmed up it stops misfiring and runs fine
anyone come across this before
Gary.

Edit:
(I read st1100 initially, oops my bad).

The only time I've seen an issue with a cold ST1300 is with a vacuum leak...

When it does this does holding the tach at or above 4000 rpm trigger an FI light? If so it will store a diagnostic code to check.

will try the 4000 rpm when i start her from work tonight
not seen any lights come on
i am suspecting as Mark suggests this bike did 200 miles in 12 months spent most of it's last year in a garage with cloth over it.
possibly a cracked perished breather pipe.
i am waiting to move house once moved end of this week i plan to remove all tupper ware and see if i can see whats going on underneath
plan to put thermostat in her and new fan switch so may as well check everything while im in there.
and i think i oil and filter her while apart...

Could just be some bad gas... I'd try some sea foam or whatever you chaps have handy over there that's similar.

Held revs at 4000 at cold start from work tonight no lights came on or flashed

When was the last time you checked the valve clearances?


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when was the last time you cleaned the 5-way tee?

Have you been using the bike regularly or has it been sitting in hibernation over the winter. My bike stubbles a bit for the first few starts if I leave it down for a month or 2.
After that, it runs fine.