i just recently replaced the motor mounts in my ski. had to pull the motor and just got it back together. i was able to crank the motor over before and now, with a new battery i will crank but wont start, well atleast everytime. i tried for about 20 minutes and got nothing than let it sit over night and started it the next day first try, but now it wont start. could the battery just be drained allready?