Guys, the search function isn't working for me right now, so I apologize in advance, but I need to fix a 99 with a loss of prime problem, I put a Vulcan draw straw in a couple of years ago, those hoses, ets. are fine, I suspect the lines from the drivers feet to the engine are a problem, I cannot see them very well, but they look like flared fittings?

Anyway, any quick advice for either a loss of prime problem that is not back at the fuel tank, or a quick primer on what I need to replace up front?

 

Are you using the stock lines?

I relocated my LP to the rail in front of the fuel tank and add the Geno's big blue fuel line. It eliminates the banjo bolts also. I have the stock piece that goes up to the filter from down below, I'm pretty sure. If you want it send a PM.

If you have a loss of prime and everything is OK from the tank into the tank, your problem has to be a rubbed area on a steel line, or a banjo fitting seal not tight, or that flexible piece going up to the filter.

You need to isolate the fuel line between the tank and the filter and apply a few pounds of air pressure and start from one end to the other feeling for the escaping air.

Can you remove the fuel line towards the rear, near the drawstraw, without too much trouble? If you can remove your fuel line back there near the fuel tank and block it off with a piece of bicycle tube and a hose clamp( or anything of your imagination). Then remove the fuel line up near the filter and take the bicycle tube (you just cut up) and remove a section around the valve stem about 3" in diameter. Clamp this piece over the connection you have there with a hose clamp. Use the valve stem with a core in it to hold air pressure in your line.

 

If losing prime due to air leak, the most frequent items are the banjko bolt at rear of head and the three way fitting of return line at left rear of engine. Then comes the Ip fittings, the filter fittings and cover, the LP fittings, and the quick connect below the LP. Sometimes a carefull inspection will show the slightest wetness. You can also pressurize the fuel tank with no more than 3.5 psi (NOT 35). The leak will generally show when look carefull.