Hi I was wondering if anyone knew it covering the metalic fuel lines with a rubber fuel line help with vapor locking?
Or, would going all rubber be better?

Thanks

 

the braided hoses are for show only. i don't think they add anything technically apart from being more resistant to cuts.
The fuel line is only a problem if routed wrong. You have to fix that in any case. Obviously away from exhaust. The most common problematic spots are:
- in the back at rear axle when a dual exhaust conversion was done without re-routing the fuel line. This is a must do on dual conversion as the fuel line is very close to driver side pipe
- in the front close to headers

once that's fixed and you still have vaporlocking issues (how do you know you have them?) try a spacer between intake and carb

 

Hey kali,
This stems from the waterpump test thread. You are actually right about dual exhaust conversion. I did perform that upgrade and I didnt re-route the fuel lines. Its about 1 to 2 inches from the pipe. I didnt think it would be an issue, but then again I never heard of vapor locking either.

The fuel line from the tank to the frame is metalic. I wanted to cover it with 3/8 fuel lines thinking it would keep it from heating up. I am also using the metal fuel line that runs from the pump to the carb. I want to cover that up with 3/8 lines aswell to help prevent heatransfer.

Why do I think I have vapor lock. After installing a clear filter. I shut the engine off and bubbles kept passing through the filter for about a minute.
I am no master mechanic but I thought that would raise a flag for me. I found out that phenomenom is called vapor locking . I think thats what I got. I am not 100 percent but I will post a video later after my wife leaves

 

ya. start off with this: reroute fuel line away form any heat source and put a phenolic spacer under the carb. especially when the issue starts happening _after_ engine shut off

 

if you converted yourself check for the brakeline as well. i confused it, that's usually the prob

 

Hey Kail,
I took this video. This was after a 5 min drive around the neighborhood. I am shooting this with my phone. The filter is actually vertical and it looks like the fuel is boiling.

http://www.youtube.com/watch?v=12H-QV4ZTBM

In this video the fuel filter is empty and you can see the pressure go to a steady 4 psi. It seems to be full of air. the gauge is between the filter and the carb.

http://www.youtube.com/watch?v=4FQbm88QvYQ

 

Where can I get one? Seems to be hard to find.

 

Also putting a reflective coating on the lines will help. The best fix has all ready been stated to re route the lines away from heat.

 

I don't see how it could be boiling if you can hold it with your hand. That looks more like air to me.

 

ya. it's air. probably boiling over in carb.
what intake and carb do you have (for the spacer)?
before you put one in, recheck all your fuel lines. if it drips out somewhere it's 10 times more likely to suck air there.
when the lines are all good and not leaking try the spacer