70 HP Yamaha Questions

[ljc1957]

Hello All, I just bought a boat with a 1987 Yamaha 70 Hp. Couple of questions. Does this engine recharge my battery or do I need to pull the battery and charge it myself? When I put the boat away, it usually sets for a couple of week, should I run all of the fuel out of the carbs for storage? Thanks in advance.

 

[SiLiconD17]

Re: 70 HP Yamaha Questions

It should recharge your battery while it runs so long as it has a working alternator. I always run the gas out of my carbs on anything if it's going to sit for a while. There's nothing worse for a carburetor than letting gas and oil sit in it for extended periods of time...

 

[JUSTINTIME]

Re: 70 HP Yamaha Questions

if you stabilize the gas no need to run the carbs out of gas

 

[BruceAML]

Re: 70 HP Yamaha Questions

It charges the battery but the current is not regulated. A low tech way of doing things and that is why the owners manual tells you to use a battery that is not sealed so that you can add water if it has been overcharged.