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Old 08-24-2021, 12:55 PM
Jackfrost Jackfrost is offline
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Neutral safety switch question

If the hurth neutral safety switch is malfunctioning will the boat crank but not start?

Boat is a 2007 prostar 197

Thanks.
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Old 08-24-2021, 01:55 PM
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Maristar210 Maristar210 is offline
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Quote:
Originally Posted by Jackfrost View Post
If the hurth neutral safety switch is malfunctioning will the boat crank but not start?

Boat is a 2007 prostar 197

Thanks.
It won't do squat. If it's cranking it has to be one of: A fuel, B spark and C compression
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Old 08-24-2021, 02:17 PM
Jackfrost Jackfrost is offline
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Right. The problem is fuel but what I am asking is whether the sensor could be responsible for the stopping of the fuel pump from getting 12v while it is turning over?.

Last edited by Jackfrost; 08-24-2021 at 02:33 PM.
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Old 08-24-2021, 02:47 PM
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waterlogged882 waterlogged882 is offline
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Originally Posted by Jackfrost View Post
Right. The problem is fuel but what I am asking is whether the sensor could be responsible for the stopping of the fuel pump from getting 12v while it is turning over?.
Take both wires on the NSS and put them on one post. That will bypass the NSS for testing.

I get what you are asking and I do not know for sure but this process will indeed bypass the switch to determine if it is good or not (restricting 12V to the pump).

I am sure someone else can answer your specific question.

Have I recently mentioned how much I luVs my all mechanical fuel pump on my 93?

.
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Old 08-24-2021, 04:00 PM
88 PS190 88 PS190 is offline
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Quote:
Originally Posted by waterlogged882 View Post
Take both wires on the NSS and put them on one post. That will bypass the NSS for testing.
.
Or rather to satisfy oneself it isn't the issue, remove one wire and see what your boat does. Or just put it in gear and see what the boat does.
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Old 08-24-2021, 09:10 PM
Jackfrost Jackfrost is offline
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2 wires together ... boat started on 3rd crank
Removing one wire... the system turns on ... throttle body clicking... no engine turn over.
Sensor checks out... continuity is good as a closed circuit (NC)... throttle to forward or reverse(while engine off).. continuity lost. Passes test.
Put both wires back on the neutral safety switch and started after 3rd crank.
I moved on to the temp sensor and unplugged it. Engine starts. Ran for 40 minutes but had one instance of power loss and resurgence. The fuel pump lost its 12v.

Will run for the next couple of days with the temp sensor unplugged to see if it is the cause of my hard/no start situation.

There seem to be 2 problems here...
1. Hard start / no start
2. Quick power loss to fuel pump and regain at speed

Leads me back to electrical connections at the motor.

What tells the ECM to stop fuel delivery?
Fuses are fine
Relays are fine
Pump is fine
Filter is fine
Regulator is fine
Grounds are fine
Battery is fine 13.4
Temp is fine 160
Ignition is fine
Pps is fine
Safety switches fine
Oil pressure is fine 40 to 60

Any leads would be helpful.

Last edited by Jackfrost; 08-25-2021 at 01:47 PM.
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  #7  
Old 09-14-2021, 02:23 PM
88 PS190 88 PS190 is offline
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https://www.bakesonline.com/media/re...5-5Amanual.pdf
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