Dui install

I recently install a Dui Hei using Jpass link, thank you for that write up , I am having a problem getting the volts I need for the hei . Where can I get a good 12 volt lead for the hei . It will start but under a load it starts skipping . My boat is 1991 excel with a 351 Thanks for any help.

Thanks, it is wired to the jpass spec . I will check the volts when I get some help. I am showing good volts on my dash gauge at idle. I installed new plugs today. It changed nothing. It runs good until I but a load on the motor.

Thanks I will check it after work . Not much fun when you spent your forth working on your boat and watching all the other boats out on the lake.

What are the chances the timing is off or firing order is incorrect? That is where I would put my money.

Despite the warnings, my experience has been that the DUI is fairly tolerant of mediocre supply voltage.

Since he thinks he does, a few minutes with a meter will tell him if he does............or doesn't,

1TAZZ wrote: Ok so I checked my volts today and this is what showed 12.2 on my Batt . 11.8 on my choke lead and 11.8 on my lead to my dizzy this is with the switch in the on position. So I am not sure what I do next . I am about to miss another summer of boating again .

Hell no you won't miss another summer

Why not look at what TRB asked (quoted below)

TRBenj wrote: What are the chances the timing is off or firing order is incorrect? That is where I would put my money. Despite the warnings, my experience has been that the DUI is fairly tolerant of mediocre supply voltage.

What's the firing order you're using and what direction are you going around the cap and what's your timing set at.

Even if you're sure it's all right, spit it out here

I seem to think you have a reverse rotating engine, you would know from when you bought the distributor or from the engine ID tag too.

Thanks guys to follow up last summer I thought the protect was causing the problems I was having so I removed it and installed the DUI, the first time out this year the boat ran great for about 20-30 min I ran it up to around 35 mph all good . I pulled up to my dock and the boat started loading up so I look at he carb and it is puking gas out the back secondary into the motor. I had the carb rebuilt and installed new plugs . This weekend I put it in the water and it starts up good revs good so I back it off the trailer and start it power up and it starts to skip and wont power up, so I load it up, that is where I am at . You Guys have been a great help. To think I sold my 1990 for this boat . This boat was the dock queen of my cove and I always wanted it so it came up for sale I had to have it.