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 Catalina/Capri 25/250 Sailor's Forums
 General Sailing Forum
 Failure to electric start		  New Topic  Topic Locked
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Don White
Deckhand

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3 Posts
Initially Posted - 07/16/2008 :  07:38:04  Show Profile
My 1988 Johnson Sailmaster 9.9 after being pulled for service will not electric start. It always did prior to the service. Looking for some on-line wiring diagrams or schematics to help solve this problem. It does pull start very easily. Has anyone experienced this and if so what might be the solution? Thanks for the help. Don
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Stardog
Captain

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USA
319 Posts
Response Posted - 07/16/2008 :  08:21:20  Show Profile
Hi Don,

Does the engine turn over at all? What other symptoms?
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Dave5041
Former Mainsheet Editor

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USA
3758 Posts
Response Posted - 07/16/2008 :  10:45:47  Show Profile
First, I am assuming that nothing happens when you press the starter button; if anything clicks or grinds, it is probably not the switch. I just replaced the starter button on my 9.9 after isolating it as the cause for my start problem. Isolating was the difficult part since the connections are covered in shrink tube and imbedded in RTV sealant. I didn't have a wiring diagram so I don't know if the hot wire goes to the distribution block or directly to the starter. If it goes to the distribution block, check to see if resistance to ground goes to zero when the button is depressed. Otherwise, remove the button, cut off the shrink tube to expose the pins, and check resistance across the switch (do all of this with the battery disconnected). You might first try spinning the starter by hand a few times and trying to start after each spin to rule out a bad spot on the commutator. I was fairly confident that my switch was bad by the way it failed. The switch was an outrageous $55, but I had to get the engine ready to sell. If you replace the starter button, save the nut - they include the shrink tubing but sell the nut separately. The nut is hard to access since the recess is small, and there is a bracket holding the wire harness near the middle of the front of the motor that should be unbolted to give you some slack.

edit: be sure you don't have a dead battery!
Edited by - Dave5041 on 07/16/2008 10:48:12
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jesse camp
1st Mate

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USA
84 Posts
Response Posted - 07/16/2008 :  12:31:58  Show Profile
Hello 25 Fans,
I just bought a Tohatsu 9.8 Lg Shaft with electric start, altenator.
I wired it up, charged the battery, touched the start button,
nothing!!!, I checked my wiring, checked the voltage on the motor,
motor was getting 12 volts, so I pulled the handle, started up and I ran it for about 1/2 hour. Shut it off, tried the starter, nothing!!!
Not a click or a beep or a whirr. So I check all over again,
battery checked out, wiring good, 12V DC power is to the motor.
I went home re-read the manual. HMMM, says there is a 20 amp fuse.
Went back to the boat, found the fuse holder, found two fuses,one which is a spare, the other one in use. The fuse was blown!!!
Took the blown one out, put in the spare. Touched the starter button
viola!!! We have electric start!!!!
Moral of the story: Check your fuse!!!

Jesse Camp
1987 5550 SR SK
Sea Trekker
Merritt Island, FL
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KD4AO
Navigator

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USA
202 Posts
Response Posted - 07/16/2008 :  16:00:20  Show Profile
Hey Jesse, I'm just kidding with you but that sounds like the old "If everything else fails. READ the directions". I know only too well, cause I do it all the time. Glad you got it working.
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dmpilc
Master Marine Consultant

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USA
4593 Posts
Response Posted - 07/16/2008 :  17:47:44  Show Profile
If your fuse blows again, you'll need to find out why ASAP.
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britinusa
Web Editor

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USA
5404 Posts
Response Posted - 07/17/2008 :  06:03:51  Show Profile  Visit britinusa's Homepage
Jessee, I thought you were going to say that the safety switch was not connected!

Paul
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jesse camp
1st Mate

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USA
84 Posts
Response Posted - 07/17/2008 :  07:55:54  Show Profile
Paul,
I thought it was weird that the fuse was blown out of the box,
If it goes again, I will get the warranty service.
Jesse Camp
Sea Trekker
1987 5550 SK SR
Merritt Island, Fl
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
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.