Troybilt 4cycle trimmer won't start.

Links to products I have in my tool bag. Compression tester. https://amzn.to/2NMgeze Spark Checker. https://amzn.to/3bnXjmA Tygon Fuel Line. https://amzn.to/3aCGntm Carburetor Adjustment tools. https://amzn.to/3k7cgxe Primer Bulb. https://amzn.to/3dC0WYK Fuel Filter. https://amzn.to/2ZC0T7i Metering Diaphragm. https://amzn.to/37H7G42 Visit our Facebook:   / homegarage-106427358399495   Thanks for watching. This trimmer was getting tougher and tougher to start and run. Finally it wouldn't start at all. The diagnosis was the metering diaphragm was hardening and not working like it was supposed to. This was a down and dirty repair where I didn't even remove the carb from the engine. Thanks for watching and please consider subscribing.