Takes 7-8 pulls every time you try to crank it on choke when cold, or without choke when hot. Once it cranks, it will achieve full throttle for about a second, then it starts to slow. It runs at about what seems like half to 3/4 throttle with the carb at full throttle. It will run like this for about 10 seconds, and then it shuts off and won't crank again unless it sits for about 5 minutes. Any ideas? The carb gasket is slightly torn when I took the carb off to clean it, but I tightened it down really tight. Is this the problem? If not, what else could it be? I'm unfamiliar with Redmax problems. This is a friend's blower.