I'm assuming that you are clamping your mold. I hope that you were wearing protective gear like gloves . Run the temperature up under plastic to about 350° if you do not have a thermal meter you should pick up one. Put the injector head into the intake hole of the mold and first down firmly. Depending on the mold and cavities and what size of the bait you were shooting depends on how fast you shoot the smaller you go the faster you shoot. Go to YouTube and watch some videos if you need any more help please let me know also there's a lot of stickers on the upper part of this form where to buy stuff so forth and so on I'm sure that quite a few of the other guys will charm in here and help you out also.