My husband has an MTD with a b and s 12.5. It has run weill with some babying for a while, now. One day he was running ti and he heard a loud POP , and that was the end. It has new solenoid, starter, bettery and a few other things . The key is it is GETTING gas into the bowl, but not going anywhere else . Fuel pump? He is NOY savvy at these things and has never rebuilt one, but as we have 6 acres and no way to mow it , guess he needs to learn. Any thoughts on where he could start?