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11-01-2009, 05:53 PM
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#1
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Registered
Join Date: Mar 2009
Location: Muscle Shoals, AL
Posts: 19
Formula 271
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HP 500 1997 Fountain
Just bought 1997 Fountain with (2) HP500's. The starboard engine will turn over, but never fire. Guy just replaced the coil and pickup module in distributor and it fired up and ran fine. Took it out today and it just kept turning over and would not crank. I put the firing wire (from dist. to coil) off of port to starboard and it fired up and ran fine. After running the boat a bit we stopped and when I tried to crank starboard it wouldn't fire AGAIN!! What could be the problem??? Also, what should oil temp be in these motors??
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11-01-2009, 06:17 PM
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#2
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Registered
Join Date: Aug 2007
Location: Port Deposit, MD
Posts: 572
1992 38SC
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Check all your grounds.
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11-01-2009, 07:43 PM
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#3
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Registered
Join Date: Oct 2008
Location: Toms River, NJ
Posts: 260
84 Wellcraft Excalibur 27
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Check the main elec round connector and see if there is corrision, loose pin's,etc
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11-01-2009, 08:09 PM
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#4
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Get me a BEER
 Platinum Member
Join Date: Dec 2006
Location: Chesapeake Bay
Posts: 1,776
formula 1996 382 sr-1
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Check the kill switch. Unplug it and plug it back in .
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11-01-2009, 09:30 PM
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#5
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Offshoreonly Advertiser
 Offshoreonly Advertiser
Join Date: Jan 2004
Location: Tennessee
Posts: 1,537
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All good advice. I'll bet it is one of those 2 items mentioned. Did you check it for spark when it wouldn't start. If it does not have any spark when you are cranking it over, then check all of the connections on the distributor, coil, ignition module, etc. If it does have spark, then your problem is going to be fuel/carb. related. I would bet that it does not have spark when it will not start. Good luck.
Eddie
__________________
True, Custom EFI and Carb. engines from 500 to 1500 HP. Also specializing in outdrive upgrades and repair, custom rigging and fabrication, we can handle all of your performance boating needs. See our entire engine line at www.YoungPerformanceMarine.com Contact us at 615-216-7449 or youngperformance@comcast.net
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11-02-2009, 10:26 AM
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#6
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Registered
Join Date: Mar 2009
Location: Muscle Shoals, AL
Posts: 19
Formula 271
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Thanks for the replies..I need a wiring diagram for the hp500, for the coil wiring and distributor ignition control module. All connections seem fine at module and at coil, where are the other ends so they can be checked or reference me to a diagram?
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11-02-2009, 10:08 PM
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#7
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Registered
Join Date: Aug 2005
Posts: 241
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check the tether,also check the ignition switch for loose wire..
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11-02-2009, 10:40 PM
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#8
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Charter Member # 55
Charter Member
Join Date: Oct 2000
Location: Omaha
Posts: 7,843
32 Active Thunder
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There are ignition troubleshooting guides in merc manuals. They are simple and make it easy to figure out whats wrong. They have been posted on OSO before, but I don't where they are.
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