How many amps does starting a 90 hp 4 stroke draw?
J jackjorg Recruit Joined Aug 31, 2011 Messages 1 Aug 31, 2011 #1 How many amps does starting a 90 hp 4 stroke draw?
5150abf Vice Admiral Joined Aug 12, 2007 Messages 5,808 Aug 31, 2011 #2 Re: yamaha outboard Welcome to iboats. I can't answer your question other than get the biggest best battery you can afford and keep it charged, there is nothing worse than getting stranded on the water with a dead battery.
Re: yamaha outboard Welcome to iboats. I can't answer your question other than get the biggest best battery you can afford and keep it charged, there is nothing worse than getting stranded on the water with a dead battery.
E EGlideRider Lieutenant Junior Grade Joined Dec 14, 2008 Messages 1,000 Aug 31, 2011 #3 Re: yamaha outboard There are lots of variables such as motor temp and battery voltage so you won't find that data anywhere. A ballpark guess is 100 Amps. But like 5150 said. Get a big battery and don't worry about it. A second battery is also nice to have.
Re: yamaha outboard There are lots of variables such as motor temp and battery voltage so you won't find that data anywhere. A ballpark guess is 100 Amps. But like 5150 said. Get a big battery and don't worry about it. A second battery is also nice to have.
