I bought a use bow for nothing at a pawn shop and the bottom limb is worpt how do I try and strightn it .  Mike

Do search on here for bent or twisted limb, you'll find all kinds of help.......most of it good!

If it's not too bad sometimes twisting it the opposite way can fix it. I do it while strung and leave it that way for a while. If you draw it and let it down easy it'll lay in the groove when it's good.

I had a stubborn one recently that needed a hot water treatment. I strung it and twisted the limb past center while holding it under hot water til it's warm. Then turn the water to cold while still over twisting it til it cools. Leave it strung a bit then draw and let down. Repeat as needed til it stays straight.

Most always it is the bottom limb-anybody wonder why? At the risk of spoiling it for anyone who wanted to guess it is because the bow has been standing in a closet for umpteen years and eventually the weight of the bow twisted the limb. Usually it can be straightened by pressuring the limb in the opposite direction with or without heat-depending the amount of twist. Leave it strung overnight and see how you did. You can twist it some more with the bow strung.