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Hello. My name is Tan.
Have you checked for spark?
Could I get the engine serial number please?
We need to check for spark on all cylinders. This requires the use of a spark gap tester.
Here is an example of the tester. Most auto parts stores carry this type of tester. http://www.nationaltoolwarehouse.com/Ignition-Spark-Tester-with-Adjustable-Gap-P41027.aspx?zmam=31282435&zmas=50&zmac=750&zmap=THX404&gclid=Cj0KEQjwv467BRCbkMvs5O3kioUBEiQAGDZHLzWnfuN-aGOrjsJQEXFAY4kz5-X3uvV7vtqGeLpZt9QaAoRI8P8HAQ
Ok Jerry. We have to verify that we have compression spark and fuel. One of these missing will cause your symptoms.
You can try squirting gas into the carburetors. If the engine pops off we have spark to some extent meaning we aren't getting fuel to the engine. If the engine has been sitting for awhile the carbs are most likely gummed up. If the engine does nothing then locate the switch box and disconnect the black/yellow wire from the switch box and try starting again. If nothing then squirt some fuel into the cars again see if engine pops off.
Post back with findings and we can continue.
Ok Jerry keep me posted...Tomorrow is fine.