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-   -   500 efi won’t start (https://www.offshoreonly.com/forums/general-q/382912-500-efi-won%92t-start.html)

F-2 Speedy 06-26-2024 10:14 AM

So one runs and the other doesn't ? cranks but no spark ?

BYFS 06-26-2024 10:38 AM

Yes, port runs, no issues, star is not pulling fuel, nor sparking.

AllDodge 06-26-2024 10:57 AM


Originally Posted by BYFS (Post 4901514)
No antisyphon in this system, fuel line is fine, pick up is fine, yes there is fuel in the tank, and it’s hard to believe not one gremlin hit this off season but two? Fuel and spark! Inlet in remote tank will be performed today (results tbd)

Right now forget about no spark, find out why no fuel

Use a gas can and length of fuel line. Disconnect fuel from tank at filter, Connect gas can line to filter

Prefill filter

Edit, remove filter and dump contents into clear container

1MOSES1 06-27-2024 10:40 PM

You confirm your in neutral…you check neutral switch on shifter

BYFS 06-28-2024 12:51 PM

Fuel delivery issue solved, ZERO spark! Inspected distributor, looks fine, rotor spinning, swapped the ignition module, which was not the problem!

Griff 06-28-2024 01:21 PM

My next guess would normally be the distributor pick up coil, but hard to believe it would suddenly go bad while layed up.
So' I'm more leaning toward a wiring issue where some corrosion developed

Here is a TB V troubleshooting flowchart
https://cimg3.ibsrv.net/gimg/www.off...d0e7de962b.jpg

Trash 06-28-2024 01:24 PM


Originally Posted by BYFS (Post 4901759)
Fuel delivery issue solved, ZERO spark! Inspected distributor, looks fine, rotor spinning, swapped the ignition module, which was not the problem!

What was the fuel issue?

BYFS 06-29-2024 10:01 AM


Originally Posted by Trash (Post 4901763)
What was the fuel issue?

Primed it 3 times, finally took.

liberator221 06-29-2024 03:18 PM

I had a terminal end corrode away inside the connector of wires coming from pick/up to ignition module. Difficult to see but no spark.


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