I have a starting problem when cold. I noticed that when I pump up the primer bulb it never get's hard and I can hear gas going threw lower carbs I think. Leaks gas out front of motor by air filter. Do I have a blown seal or something? It has always been hard to start. Have cleaned all starter to Battery connections. Motor turns over fine, with throttle up and choke button pushed it will fire one cylinder and kick out starter. The only way I can get it started is to keep pumping primer. Eventually I can get it started if the battery holds up. any suggestions,Thanx in advance for any help