Let's get to work. Scenario: Engine cranks strong. No start. What steps do you take next to find the issue and why? Post your diagnostic path, not just the answer. We're here to learn how to think like a problem solver, not a parts replacer.
Fuel air spark. Is there fuel in the tank, if filter visible - is it filled (and color?). Check air filter intake - clean/open? Last check - good spark?