Yamaha 9.9

[Capn Mike]

I have an 8 year old elec start 9.9 4-stroke as a trolling motor(does very well, thank you). The dealer installed it on my 23' Seaswirl WA when I bought the boat. When I asked if it had an alternater, he told me: "No, but it has a resister that generates current." <br />Now I'm pretty dumb, but I can't think of how that would work. I suppose I could take off the hood and look for an alternator or "resister", but I'm not sure what I'm looking for. Anyone know about this? Am I producing any current (for fish finders, radios, etc) while trolling? Curious mind wants to know!

 

[JB]

Re: Yamaha 9.9

I think you've been had, Capt. Mike. I would not be surprised if an electric start version had one or more alternator coils to generate power. <br /><br />I recently bought a 1986 9.9 4 stroke and am expecting the service manual any day. When I get it I will be able to answer your basic question.<br /><br />Red sky at night. . .<br />JB

 

[Case]

Re: Yamaha 9.9

Even if you do have a voltage output, you will want a battery in the circuit.<br /><br />Look inside of the cowl cover. Are there a couple of wires dangling? do they go under teh flywheel? If they do, they are probably attached to an extra coil and you will need a recitifier. If there are a couple of wires coming out of a covered box, then you probably have a rectified output. Either way, you must have a battery in the circuit.<br /><br />Case

 

[Forktail]

Re: Yamaha 9.9

If it's the high thrust 9.9 it will have an alternator more than sufficient to run your electronics, charge your batteries, etc. The new 9.9's run 13 amps. Non-high thrust and 2-strokes run 6 amps. I'm not sure what a mid 90's model puts out though, but probably more than 10 amps.<br /><br />I've had drained batteries a few times, and you can manually start the kicker and it will charge the batteries enough to start the big one after only 15 minutes.<br /><br />Many outboards not set up for charging can be retrofitted with a rectifier. I have another 40hp Yamaha non-remote tiller that I installed a rectifier on. Works great.<br /><br />My two Yamaha 9.9 4-strokes are flawless. <br /><br />Oh, tell your dealer that resistors don't generate current!

 

[Capn Mike]

Re: Yamaha 9.9

Thanks guys....it is the high thrust (geared prop?) version, which works great as a trolling motor on my semi-heavy boat, so I presume it has a alternator. I feel really foolish now...I could have saved all this correspondence by merely looking at the gauges. Duh. Thanks for your help.