2009 Honda Ruckus 50cc, Loud Fuel Pump By mikey34 (Read 7,908 times)

[mikey34]

Hey guys, I have Ruckus with an electronic. Fuel pump.

It has a loud ticking coming from it, and it the bike will die for no. Apparent. Reason

After it sits for about 2 mins it will finally crank after cranking for a good 2 mins straight,
Already cleaned the carb, replaced fuel filter, no change. It has a one way inline valve also, may take it out...

This is wierd guys, it does it on the first start of the day too...

Any thoughts are appriciated!!! Thanks in advance!!!

[jct842]

It sounds like the carb may not be getting fuel.

You are not being very clear in your discription, do you mean that after 2 min of cranking it will then start?

If that be the case take the fuel line off carb and see that it comes out of the line.

[mikey34]

Sorry about the UN Clear description guys. The problem was not getting ENOUGH fuel to the carb.

When I would turn the IGNITION to ON, the Fuel Pump would come on, but made this LOUD "TICKING". I called Honda to see how much the OEM replacement would be, and they quoted 95-110 dollars. After doing some research I found that a couple people had replaced theirs with a "Micro-Fuel Pump/12S" from ANY of the Auto Parts Stores. It was only 45 dollars. With some SMALL fabrication, couple of SMALL holes in the SUB FRAME and tapped with 10mm bolts, also replaced all the rubber hose and the NEW Fuel Pump came with a brass fuel filter. I went ahead and added ANOTHER Regular plastic and brass fuel filter too. Starts on the first push EVERYTIME!!!

MORAL OF THE STORY ON "THIS" REPAIR: TICKING means bad fuel Pump!!!

[mikey34]

BTW, if anybody else does this with your bike, be sure to observe your wiring diagram, and make sure you make the right connection to a 12 volt source, on the "RUCKUS" in this case, the ECU on the bike will NOT START if the lead from the computer(REMOTE WIRE) to the fuel pump is NOT CONNECTED TO A 12volt signal!!!! Crimp it to the 12volt hot wire, so that when the IGNITION is turned on, the ECU "SEE's" the Fuel Pump!!!!

[jct842]

There are some lawn mower fuel pumps for even less that should work too. But.................at least you are going again.

[cyborg]

Good quick fix mikey,,, and not too shabby on the price either,,, half price of the dealer counter,,, not bad at all

[mikey34]

Thanks Cyborg, ya I could have used a rider lawn mower pump, but the 12S pump from O'Reillys Auto has been tested on a couple different setups. All the way up to 250cc, at first I was afraid of the pump flooding the carb, so I used the filter that came with the pump, and used an inline right before the carb to get the hose diameter back down so it would be a tight fit on the carb. I love that it is about 1.5 the size of the original, hard to fit into stock hole, but you can hear the pump kick on this way YOU KNOW, your getting Fuel!!!!

[cyborg]

you may want to consider a fuel pressure regulator

[Guitarman]

Moral of the story:

If it's making an unusual noise, fix it.

[mikey34]

Well guys, short lived success...

I tried to start the Ruckus today and it started to crank, fuel pump came on, and then, EVERYTHING cut off... I tested for voltage at the battery, 12.34volt, all fuses are good... I smell Hot or melting plastic I believe coming from the ECU... WHY did they put an ECU, on a 50cc.....

Can any one find a wiring diagram for the 09 ruckus/metro???

[mikey34]

Victory short lived guys, I went to start the bike today, and it started, then immediately shut off, all lights, gauges everything...

I tested voltage at the battery and had 12.3. I'm afraid I have a burnt plastic smell coming from the ECU... WHY DID THEY PUT AN ECU, In a 50cc...?

If any body has a good wiring diagram to an 09 Ruckus/ Metro, I NEED it... THANKS Guys!

[2009ruckus]

Maybe a dumb question but was this ECU crash due to the non-OEM fuel pump this guy installed?? I just bought an 09 ruckus with a bad fuel pump and I'd like to save money if possible! But I don't want to fry the ECU.

Only has 500 miles!