Quote:
Originally Posted by Air&Road
Are you kidding? I've done this as a troubleshooting step hundreds of times in my lifetime with no negative results. It's a very common troubleshooting step.
The only time it gets dangerous is when someone gets the bright idea to continue pouring in gas while someone is cranking the engine. THAT is when disaster can occur.
To do this safely, pour about a jiggerful of gas in the carburetor or throttle body, then set the gas container away from the engine then try to start the engine before the gas has a chance to evaporate. If it spits and pops even once, you know you have spark.
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Not kidding. I had to help deal with the outboard mechanic who had with third degree burns over much of his head because he was dealing with gas and then checked spark... it's a bit safer to check spark by pulling a plug wire off the plug and hold the wire with your bare hand- you'll feel the spark and no need to deal with open gas.