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Old 05-17-2014, 03:56 PM
Table Rocker's Avatar
Table Rocker Table Rocker is offline
MC Devotee
Join Date: Oct 2010
Boat: '96 ProStar 205, Sammy Duvall, LT-1
Location: Fayetteville, Arkansas
Posts: 2,359
Originally Posted by College Kid View Post
so lucky save on a long weekend. the local shop had a new starter relay. Put that in No change. Still doesn't turn off??????????? So at this rate I have replaced the key, and the relay, What is next?
You need to find out why the positive side of the coil is staying hot with the key off. What wires are on the positive post? There should be the wire from the key switch and the wire to the choke. Pulling which wire from the positive post kills it? Can you kill it at the switch by pulling off the "run" wire? Check the back of gauges to see if the "run" wire (mine is purple) is stacked on a post anywhere (like the back of the volt meter). With the run wire off the key switch, check to see if it is hot with the engine off. Trace wires and find out why it is.
'96 ProStar 205 SD LT-1
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Old 06-15-2014, 09:25 AM
College Kid's Avatar
College Kid College Kid is offline
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Join Date: Jan 2012
Boat: 93 Prostar 190
Location: St. Albert, Canada
Posts: 197
A quick update on my saga. After tracing every purple wire to the gauge and playing for hours trying to find the culprit that was keeping power to the coil. As it turns out I missed the most obvious thing. Hard to explain what wire it is but a purple wire coming from the back of the engine on the wiring harness, I had mistakenly attached it to the alternator (obviously not original). Should have checked there first but it's great news. Had the boat out at the lake yesterday and it starts up every time, and turns off just as easily!!!!!!

And now for the bad, I seem to have an issue with my secondaries on the carb, they won't come open. The boat will run at about 3300 rpm and about 30mph. Can't get it to go over that. Ran the boat boat with the dog house off and could see that they are not opening. It is a Holley 4160. What is the process for checking the vacuum or other things that could be causing this?
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Old 06-15-2014, 09:37 AM
Spork's Avatar
Spork Spork is offline
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Join Date: May 2010
Boat: Sporkcraft
Location: South
Posts: 3,713
Most likely a faulty secondary diaphragm. Located under the 4 screws.
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Last edited by Spork; 06-15-2014 at 09:49 AM.
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Old 06-15-2014, 10:38 AM
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thatsmrmastercraft thatsmrmastercraft is offline
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Join Date: Sep 2008
Boat: 1977 Stars & Stripes
Location: St. Paul, MN
Posts: 18,402
You already did the diagnosis via performance test. Order one and replace it. Get the part number from page 94 HERE and you should be able to find it at a local parts store.

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Old 06-15-2014, 12:30 PM
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cbryan70 cbryan70 is offline
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Join Date: Jul 2006
Boat: 1993 Prostar 205
Location: midwest
Posts: 4,565
Does the secondary just start to open then it falls on its face? Try keeping the secondary closed and see if that helps. Mine did the exact same thing last fall. I did a full rebuild as the carb sat for 8 years
Originally Posted by Hoosier Bob
She always misses me and when I turn her on it is hard to turn her off! She is MC and she completes me! She is the first ride that wants it as much as I do!
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