When the engine does run, I see some gas spit out of the air intake.
I put my hand on the air intake and while someone else is pulling starter, I don't feel a vacuom on my hand. I pulled the air filter and I can see the primer bulb is squirting gas into the carb. Not sure what compression should be but that seemed OK. I checked for compression and found 60 PSI after 3 pulls. In fact it seems to die when we inject starter spray into carb. When we do get the engine to start, I've spray starter fluid into the air intake (w/o filter) but the engine does not power up.
We can get it started but it will die soon and will stall when we throttle up. However, even with fresh gas and a good cleaned carb, the engine still will not throttle up. I replaced the fuel line as it looked worn. I also pulled the gas tank and cleaned it out with fresh gas. We used wire to clean the 3 small jet holes. The carb had white cake and crud under the welsh plugs. We pulled the carb and thoroughly cleaned it using a rebuild kit. It is also not idling well and will die after only 30 seconds. The engine has a prime bulb and we can get it started with 5 primes but it will bog down and die when we throttle up. I bought a used Murray gokart that has a great frame and a OHH65 model Tecumseh 6.5 hp engine.
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