70 HP Yamaha Questions

ljc1957

ljc1957

Petty Officer 2nd Class
Joined
Aug 30, 2007
Messages
169
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.
 
S

SiLiconD17

Seaman Apprentice
Joined
Jun 21, 2007
Messages
44
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

JUSTINTIME

Captain
Joined
Sep 2, 2006
Messages
3,284
Re: 70 HP Yamaha Questions

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

BruceAML

Petty Officer 1st Class
Joined
Feb 26, 2007
Messages
371
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.
 
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