20 hp B&S twin, Husqvarna 46":
Enging started "surging" after a few minutes of running but could be smoothed out by adjusting the choke. When the blade was engaged engine would stop soon after, but would start back after a few minutes. After checking the gas pump (working fine), checked the carburetor. Disabled the solenoid on the carburetor. Engine started, ran for about 3 min. but stopped, and then would not start again. Does crank but doesn't "fire" at all...
1. changed oil/spark plugs
2. Replaced the carburetor (new solenoid switch included)
3. Used spark plug tester to check for spark (has spark)
4. coils ok (reset gap to fly-wheel)
5. fuel pump (ok)
6. valves (replaced broken gasket on one valve cover. Valves are ok)
Engine still cranks but does not fire at all. Is it possible that a broken head gasket would keep it from starting? It has compression, spark, fuel... at a total loss.
Enging started "surging" after a few minutes of running but could be smoothed out by adjusting the choke. When the blade was engaged engine would stop soon after, but would start back after a few minutes. After checking the gas pump (working fine), checked the carburetor. Disabled the solenoid on the carburetor. Engine started, ran for about 3 min. but stopped, and then would not start again. Does crank but doesn't "fire" at all...
1. changed oil/spark plugs
2. Replaced the carburetor (new solenoid switch included)
3. Used spark plug tester to check for spark (has spark)
4. coils ok (reset gap to fly-wheel)
5. fuel pump (ok)
6. valves (replaced broken gasket on one valve cover. Valves are ok)
Engine still cranks but does not fire at all. Is it possible that a broken head gasket would keep it from starting? It has compression, spark, fuel... at a total loss.
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