i have a 2005 sportster 883 and i purchased some heated gear and i was what kind of amp draw will it have on the bike

 

Welcome to the forum.
I use the Gerbing T5 heated gloves through the year , they are fabulous.
Here's right from Gerbing some amp draw info.

AMP
DRAW GUIDE
Gloves = 2.2 amp
Socks = 2.2 amp
Jacket = 6.9 amp
Pants = 4.0 amp
Vest = 4.2 amp

A couple pieces of gear should be no problem for most sportsters , I'm not sure what the max would be , but add all running gear and figure low to be safe.
Mick

 

You need to check the manufacturers stated power draw. Keep in mind you only have about 75W-100W of extra power available (about 6A-8A) on top of what it takes to run the bike on a stock charging system.