Posted May 24, 20222 yr Hello everyone, I have 2008 Yamaha Zuma 49cc 2-stroke that is having issues starting. I have spark, fuel (fresh gas) is flowing through the line when I suck on the vac line, but my compression is pretty low, 70 psi. I will crank the engine 7 or 8 times, my compression tester will reach around 70 psi, then I will hear a slight release of pressure and the pressure on the gauge will slowly bleed down. I'm performing the test with the carburetor off, reed valve (new reed valve assembly) cage installed. Any ideas on what to check next? Thanks
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