Well - everything has been fine up to 2-3 weeks ago, then the engine started acting up under full throttle, then hard to start, then refused to start.
My son's 17 year old buddy, who knows engines a little, attempted to clean the carb, but the factory one float bowl is fixed, and the low speed fuel mix screw is missing.
So, I bought a 100% replacement kit
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
Still would not start, so I went back to 4-cycle basics:
Intake, compression, ignition, exhaust.
Got a compression testor, and now appears it's low compression, says 60psi after a 1-2 seconds of cranking.
(edit after initial post: I see 125-150 psi is desired range, so definitely something amiss)
So ... what now? Take off valve cover and start from there?
Check valves seated, etc ... ugh, advice appreciated
