2008-09-22; 13:26:15 EDT
Member Since
2002-09-17
Posts: 4946
Tom, It sounds like a fuel related problem. We've been discussing this a lot lately and mostly with the 9.9 four stroke Yamaha. Most of the problems have been resolved by using new gas and replacing the fuel filter on the motor. Also make sure your gas tank is clean and the pickup screen isn't fouled. Another problem is that some people do not pump the primer bulb on the fuel line long enough and not enough gas is reaching the fuel pump.You must pump the primer bulb until it becomes firm. Also make sure the air vent on the tank is open. Fresh spark plugs wouldn't hurt anything either. One tool that I always carry on my boats is a spark tester. It fits onto the spark plug and then to the plug wire and lights up if there is voltage going to the spark plug. They can be had on E Bay for a couple of bucks and take a lot of the guess work out of engine problem diagnosing. Rummy In a message dated 9/22/2008 12:42:05 P.M. Eastern Daylight Time, tabick at mchsi.com writes: Hi folks. I hope someone out there is more knowledgeable about the Yamaha 9.9 than I am - I haven't been able to start it for over two weeks and I've tried every day. The battery is fully charged and the electric starter cranks over but other than a cough and a splutter for a few seconds on the very first failed attempt, the engine is not responding. I'm pretty sure the fuel line isn't clogged. If I flooded the engine on the first failure, how long does it remain flooded? HELP!!!! Tom B S/V still un-namedSee the original archive post