Fl Hermit

Ok I tried to sell it and go no offers so back to see if I can get it to run. Pulled the plugs grounded all 4 and turned it over. I only have spark on #1 cylinder. I have NO idea where to start. Any help would be greatly appreciated. Or $2500 and you can own it.

I have fuel, Have spark put in new plugs. Even with carb cleaner all it does is backfire.

76 Venture 3 wheeler with holley 2 barrel. (see my other posts) The weather finally got good enough to get back to work. I was having a flat spot problem. I replaced the power valve and it ran but still had flat spot. I noticed the accelerator pump was leaking, took the bowl off and replaced the accelerator pump. It has not run since. All it does is back fire through the intake or exhaust. I do not do motor cycles but if it was a car I would say it jumped timing. Any ideas? Or is it time for Craig,s list?

I've been doing the math from Holley and Utube. I think what I'm going to try next is a new power valve. Found an intake and carb setup on Ebay (Thanks Prairie and Flyin) but not ready to spend $500 on a flat spot (too late for that!). I can get the stock carb setup if it comes to that but want to mess with this one first. Thanks again for all the input.... I know I don't look it, but I am getting smarter

Another idea for the list .... Thanks guys! I think I'm gonna check into the VW thing... Google gotta love it

Thanks for the input guys. That's what I was thinking, There has to be some way to run this thing on one carb. Being this is a project (one of too many) I'm going to start with the Holley. Jets, restrictor plate, maybe stuff a rag down one throat, I already have the carb, wonder if a small block chevy would fit under it? If nothing else it should be a learning experience. I have parts ordered, So keep the ideas coming and THANKS again for all the input!

The guy I got it from said a friend of his made it. Not sure if he would make another one or not. I will check with him the next time I see him.

That's what I was afraid of the math is going to be way above my pay grade. Only thing to do now is start throwing parts at it and see what sticks. On the bright side "It ain't my ride home"

I didn't get the stock carbs with it but with 1-1/2 inch throttle plates on my Holley. If my math is right that's 3 inches of carb. So the stock carbs (there were 4 of them right?) The stock carbs only have a 3/4 inch bore???? NASCAR has been using restrictor plates at Daytona since 1988 but only started FI in 2012.

Cowpuc, Thanks for the kind words!!!! I looked up the numbers and the carb is 350 CFM Venturi diameter is 1-3/16" Throttle plate diameter is 1-1/2" But you gave me an idea. The restrictor plate might just work. It works for NASCAR and I'm only one wheel short of those guys. Will keep you posted THANKS AGAIN!

Yes to both

670 CFM I think that's a little big. Not to mention 2 Grand

Better Pic

TBI sounds interesting..... I think I'm going to try rejetting for now. Wish I had an exhaust gas analyzer. Cowpuc asked for pics... sorry so dark. will try again soon.

I think the Holley is in the 250 to 350 range. (need to check the numbers) If the motor is in the 125 to 150 I should have plenty of carb. What I have is a real bad flat spot just off of idle. Then about 70 mph it over heats instantly. Not sure if the two are related? One thing at a time. Thanks for all the help..... Will keep yall posted on the progress.