I bought the
I have a service manual ordered. Tracking # says delivery should be Tuesday 5/7. I installed a new fuel pump, filter and the green clip and rubber seal that connects the hose from the pump to the throttle body. I did not connect the hose from the tank / petcock valve to the fuel bowl. I put a funnel under that hose and turned the petcock to “fuel on” position. That’s when I saw I only have a “dribble” of fuel coming from the tank.At least I know the new pump is not contaminated with old fuel. The gas is non ethanol 100% gasoline but it smells more like turpentine. My dumb self didn’t think I had it sitting THAT long. Memory must be going LOL. I may pull the tank this weekend but again I may wait until I get the service manual. BTW, the manual and fuel pump assembly are genuine Honda, not the aftermarket junk.Take a look at the service manual and you’ll see all the parts involved. You might get some gumminess in the pump system.
IDK maybe you can remove the pump and clean it with some fresh fuel and a pipe cleaner
Well I took the tank off today after work. Flipped it upside down and emptied it into a bucket. Shot 90 PSI compressed air through the hose on the petcock with it in the on position and also in reserve position. Filled tank half full with water and still only had small “dribble” coming out. Emptied tank again, removed fuel petcock valve with impact wrench to avoid spinning nutserts and found that the screen membrane on the petcock is toast. Very deteriorated and all broken up in chips. Removed fuel gauge to allow better visibility inside the tank and saw chips all inside. Duct taped a piece of 1/2” copper tubing to the suction hose on my shop vac to allow easy access and vacuumed the tank really good. Rinsed with water and vacuumed again. Stuck air hose in tank filler neck and packed a clean rag around it. Let air hose blow air into tank for 30 minutes to dry tank inside. Looked at inside of tank and it is spotless.as said^^^^, time to clean the whole fuel system, starting at the tank, and working you're way to the throttle body. have you inspected the fuel cut-off replay to make sure you are indeed getting power to the new fuel pump ?. I dont have much faith in fuel pumps on the trx420's, they failed right out of the gate.
Yeah I thought about that but to be honest it would have bothered me until I fixed it right. And by the way, I put the new petcock valve in the tank, put the tank back in, connected the hoses and electrical connector at the fuel pump caniste. Put 2 gallons of non ethanol gas in it, turned the petcock to “on” and turned the ignition switch on. The new fuel pump canister didn’t have a drop of gas in it and when I turnedHa, if it were me I'd just run it in reserve.