Got spark, compression, vacuum, and fuel flow, and timing se By kristiankane (Read 425 times)

[kristiankane]

I have a vip champion that had its motor replaced by a gy6 50cc. When it broke down, i purchased a new carburetor and installed it. It cranked up, though gave me a hard time, but however had no power at all. I checked spark, and it was good.... Purchased a new spark plug recently. I noticed a drop in compression (i have no pressure gauge, but finger over the spark plug hole), so i bought a new 80cc bb kit and installed it. Now i cant keep air from escaping when putting my finger over the spark plug hole. I have the timing set to TDC on cam and rotator. When disconnecting the fuel line from the carburetor, while turning the engine over. A steady flow of fuel travels from tank to petcock to fuel filter and crom carb inlet hose. Note... Spark is blue, gas in the carb wont crank for a second...(though a brand new carburetor).... Compression is outstanding...... HELP PLEASE!!!!!! Im lost

[crwford]

remember can't check compression with finger. With a gauge it may take four or five cranks before you get a a create reading. try spraying some starter fluid in carb likely see what happens check gap on valves check flow of fuel from gas tank and open gas cap try with out cap on a few things to try first.