two engine with one battery

[junaidi]

Can I use single battery for both my engine?i just want to reduce weight

[boats.net]

We don't recommend it and if they are fuel injected models then use both battery's.

[junaidi]

ok.do you know where to get outboard engine start selector switch?so when i want to electric start eng no1 i just switch the selector switch to 1 to and vice versa.do you recommend to use this type of selector switch

[junaidi]

if i just use 2 engine with battery and attached both eng -+ to single battery is it any chance it could damaged the engine

[boats.net]

What model motors do you have?

[junaidi]

both my engine was yamaha enduro 40hp e40xw.

[boats.net]

Not familiar with Enduro models but they probably have a 6-10 amp alternator which shouldn't be a problem connected to one battery.