Starting Issues

[cybercj_btw]

I have an 86 Power Ram 50 with the 2.6L and stock Mikuni carb that has sat for years. I got the carb rebuilt and have some issues. For starters, I currently do not have an ignition lock and key cylinder, to start the truck I am sticking a key in the ignition switch itself. First problem I see is that if I open the throttle, I do not see any gas coming into the carb. When I go to start it (pouring gas into carb) it will start but die the second I return the ignition switch to the on position. As long as the starter is going it continues to run. I have all of the fuel lines run to the carb but do not see any fuel going into it, yet my mechanical fuel pump is brand new and works. I cannot tell if this is a carb issue preventing it from idling or if the ignition switch needs to be in the cylinder to idle. Regardless I have a brand new ignition switch with the cylinder on the way.

[FMS88]

Fix the ignition switch first then address the other problems. The ignition system has to be working reliably before tackling carb and fuel delivery issues.

[SubGothius]

Only starting/running with the key switch in the Start position, but dying in the Run position, suggests to me you might have a failed ballast resistor on your ignition coil.

You might be able to find a replacement ballast resistor, but if you've still got your original stock coil you may as well replace that as well, which should come with a new ballast resistor -- the Herko B108 coil does, and is pretty good and cheap:

https://herko.com/Retail/catalog/product/view/id/726

I would up dis/reassembling the mounting bracket on mine to flip the coil position around for easier/tidier wire routing. Here's a good thread about the resistor and coil wiring:

http://www.mightyram50.net/vbulletin...on-coil-wiring

[cybercj_btw]

I have a brand new coil I just installed, as for the resistor, I think it is ok. I have two 86 d50s and I tried both resistors and got the same product. I also tested the resistor with a multimeter to make sure current was flowing through it. If there is a problem with the resistor how would I be able to tell?