I recently bought a 1986 V65 Magna. I have the engine running by directly injecting fuel into the carbs. I replaced the fuel pump because the original doesn't seem to work properly. The new pump pumps and them pulses. My question is regarding the secondary fuel tank. How the hell does that work? I can't get fuel to flow from it. I haven't removed it yet, but I think that's the next logical step. The fuel valve (petcock) looks like it works properly. Is there some funky trick with engine vacuum that I'm missing?
The bike had been sitting for a few years before I got it. It was stored inside, so while somewhat dusty, everything appears to be fairly clean and complete. I can't see any surface rust either inside or outside the tank, so I don't think that's my problem.
Any assistance that you can lend on the operation of the secondary tank would be greatly appreciated.
Thanks in advance.
Barry
Simple gravity flow system. fuel should flow out hose on bottom of tank. have you pulled the hose off there? most likely a plugged petcock.
good luck
Weird. I gotta pull that tank. I disconnected all of the hoses. I know there is still fuel inside, but nothing flows. I even ran a wire inside the bottom hose, nothing.
Thanks for the response. I'll keep working on it.
Barry
Wait a minute! The hose coming off the tank is 7/8 in diameter and there is no fuel coming out? Then you have a HUGE clog. How are you running straight to the carbs? I don't understand?!
It's the secondary tank. The upper gas tank looks fine. The lower tank was full of gas and nothing flowed. I was running gas directly to the carbs, so the engine runs (not well, but it runs). So now I want to fix everything else. Figured I'd start with the gas tanks. If the tanks flow fuel I can run the engine and hopefully get some seafoam flowing through the carbs (the engine might even run better).
That's the initial plan anyway.
If I remember right, the lower tank has a screen inside it, probably plugged with crud. Sounds like you need to pull the lower tank and flush it out. It'll flow from the gravity with the upper tank connected and with gas in it, but the lower tank alone shouldn't flow to the carbs (that's what the fuel pump is for). Now of course if you take the hose off the bottom of the lower tank, you should get a nice big mess of gas pouring out all over your garage floor.