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Catalina/Capri 25/250 Sailor's Forums

General Sailing Forum

Yamaha 9.9 starting issue

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OJ
Master Marine Consultant

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USA
4382 Posts

Initially Posted - 08/30/2010 : 06:25:55

Spent a large portion of a hot windless Sunday prepping the boat for launch. Installed new battery, pushed the starter button and silence, complete silence. Battery tested okay. Bypassed starter button and solenoid and presto - motor started. Pulled motor at the dock and back to the shop it goes.

Thank goodness for helpful, fellow sailors with technical aptitude!

Edited by - OJ on 08/30/2010 06:56:16

John Russell
Master Marine Consultant

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USA
3444 Posts

Response Posted - 08/30/2010 : 07:32:40

A couple of years ago, it took me forever to realize that I had blown a fuse in the starter circuit. Somebody

hooked up the battery backward at launch. I've wondered ever since about who that somebody

was.

Edited by - John Russell on 08/30/2010 07:33:24

OJ
Master Marine Consultant

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USA
4382 Posts

Response Posted - 08/30/2010 : 12:20:19

That was one of the possibilities mentioned yesterday - but none of knew where the fuse was located.

Would you happen to recall where the fuse is on this motor John?

Thanks

Edited by - on

DaveR
Master Marine Consultant

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USA
2015 Posts

Response Posted - 08/30/2010 : 12:46:01

On my Tohatsu 8 it's tucked away upper back right. Easy to miss but if you get your glasses out and follow the wiring you should be able to find it.

Oh, and don't forget to actuate your kill switch a couple of times, take the clip on and off. Sometimes it gets gunked up and doesn't produce a good connection. That was the route of my probs.

Edited by - DaveR on 08/30/2010 12:49:52

Sloop Smitten
Master Marine Consultant

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USA
1181 Posts

Response Posted - 08/30/2010 : 13:37:55

The kill switch will not prevent the starter from turning over. It grounds the igniton circuit to prevent spark from reaching the spark plugs. Sounds like weak voltage or a solenoid failure.

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DaveR
Master Marine Consultant

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USA
2015 Posts

Response Posted - 08/30/2010 : 14:12:03

Joe, this happened in 06 so I must be remembering it wrong.

Edited by - DaveR on 08/30/2010 14:14:53

John Russell
Master Marine Consultant

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USA
3444 Posts

Response Posted - 08/30/2010 : 15:43:16

On my Tohatus 9.8, it was in the forward, starboard corner in a bright yellow plastic housing easily seen when lifting the engine cover. Sure, NOW it's easily seen!

Edited by - on

OJ
Master Marine Consultant

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USA
4382 Posts

Response Posted - 08/31/2010 : 05:40:42

Well, I'm 0 for 2 on this one.

Not only did I get the battery leads backwards (blowing the fuse,) I got the fuel line between the fuel tank and the motor backwards. Never knew there's an arrow on the primimg bulb!

Thanks for the quick diagnosis John! You saved me a trip back to the service center.

More evidence of what a great resource this forum is!

Edited by - on

Stinkpotter
Master Marine Consultant

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Djibouti
9082 Posts

Response Posted - 08/31/2010 : 07:17:57

When I bought the new motor for Passage, the Honda had a pull-starter in addition to the electric... The Yamaha didn't. That's what broke the tie.

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OJ
Master Marine Consultant

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USA
4382 Posts

Response Posted - 08/31/2010 : 08:56:10

<blockquote id="quote">quote:<hr height="1" noshade id="quote">Originally posted by Stinkpotter
 . . . the Honda had a pull-starter in addition to the electric... The Yamaha didn't . . . <hr height="1" noshade id="quote"></blockquote id="quote">Yes, the lack of a integral starter rope told me that Yamaha was extremely confident that their motor would always start - and owners would never connect battery terminals backwards or let their batteries die. Even more silly is under the outer cover - there's a second, inner cover that you have to remove before you can wrap a starter rope around the flywheel. Clearly not designed for someone hanging over the back of a sailboat transom!
If not for all the past complaints about the Honda outboards (I'm a big Honda fan) I'd be tempted to switch.

Edited by - OJ on 08/31/2010 09:01:27

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The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.