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I have a fuel pump problem with my Helix. I first misdiagnosed it as the fuel pump itself. After electrically connecting up a known good pump I switched on the ignition with no results. I tested bo

Honda Helix CN250

3 Related Answers

heimlich

David Belcher

  • 1978 Answers
  • Posted on Nov 23, 2010

SOURCE: I have an 83 Honda 500 shadow that will not turn

Check your starter solenoid . The main fuse is part of the starter solenoid and power goes directly from the battery to the solenoid. If there is a short from the main fuse wire to the solenoid that may be powering the bike . Next time you want to turn off the bike try unplugging the four prong plug to the solenoid . Look for the short there a new solenoid would run about $100 from Honda. The problem will either be a melted solenoid or a melted plug or both.

Testimonial: "Your solutions were not correct but very helpful in trouble shooting the problem. Both the starter solenoid and the ignition switch tested good. "

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Anonymous

  • 1 Answer
  • Posted on Mar 11, 2011

SOURCE: Hi. I have new Fuel cut off relay for my Honda

hi i just bought a 1988 honda shadow 600 and it idles and runs sound but when i get into third and fourth gear the engine acts like its running outta gas it will bogg out completly but if i gear back down and lower th rpm it runs fine. also it seems to run better on the res. tank. any ideas would be greatly appreciated.

Anonymous

  • 3917 Answers
  • Posted on May 04, 2011

SOURCE: I have a '06 zzr600

Hi

Some bikes have a vacuum petcock. Whenever the bike started up the petcock opened itself up and whenever it shut down, the petcock shut down too. Check to see if the petcock is set to on. Check to see if the fuel line is hooked up. Check to see if you have a vacuum line, and if it's hooked up. Check to see if the gas tank were possible vacuum locking due to a clogged vent. Alternately haul off the carbs and clean them out. Check to see if the fuel filter is clogged. Also after cleaning the carb and refitting it you will need to add vacuum to that fitting. It is a safety devise to shut the fuel off to the carb. In case the rider forgets a small hand vacuum pump from harbor freight will do the job just fine

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1996 Chevrolet C1500 pickup truck 5.7L (CORRECTION) what cause the fuel pump RELAY to get warm?

Heat is caused by excessive amps being pulled through the fuse. Sounds like the pump is on its way out. If all connections are clean and wires are in good shape, I would save myself a tow and go ahead and put a new pump in.
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How do you know is the fuel pump is bad

It won't be pumping fuel if it's bad, remove pump and connect to battery you will feel vacume with your finger
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Yamaha outboard troubleshooting

can you check that the fuel tank breather is not blocked.
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No power to fuel pump

If the old fuel pump failed, it may have blown a fuse or damaged a relay, so check those first. Your owner's manual should show where to find them. Usually, you can borrow a relay from another circuit for testing purposes.

Then, you need to determine if the wire from the engine compartment to the fuel pump is receiving power. A $3 test lamp with thin probes at each end should answer that question. While the engine is cranking, touch one end to what should be a "hot" connection and the other end to a good ground -- if the lamp lights, you've got juice.

If the wire has power, then check connections at the fuel pump that may have been mis-wired or come loose. If you have to remove the fuel pump to do this, hook it up directly (and briefly) to your battery to see if it runs ... even brand-new fuel pumps have been known to be defective.

If you're satisfied that the wiring, pump, connectors, fuses and relays are all OK, then the engine computer probably isn't activating the fuel pump relay for reasons best known to itself. Assuming the computer itself is receiving power (check fuses and relays), then you'll need to do some systematic electrical diagnosis, since there are many sensors that influence the computer's decision-making process.

Your best bet is to find an online forum for your truck. Since it's such a popular vehicle, there's likely to be many forums ... with other people who have encountered similar problems, and solved them. A factory service manual also may help to troubleshoot electrical problems.
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Lost electrical power to fuel pump

There are many reasons why fuel pumps have no power, most (in tank) fuel pumps fail due to low fuel inside of tank.

These fuel pumps turn at an alarming rate which in turn causes an alarming amount of heat. This heat is then dissipated by the fuel inside of the tank itself.If the driver/operator allows to run the fuel very low and continue to do so, this will over time allow for the fuel pump to overheat due to the ONLY source used to cool the fuel pump is the fuel inside of the fuel tank itself. Electrically, view the operator's manual or similar source to locate fuel pump fuse and/or relay of which will open the electrical path when the fuel pump overheats.
This should be a pretty good starting point to locate/isolate electrical issue you may be experiencing.

Good Hunting to you & hope this gets you back on the road soon!
FASTESTNASCAR
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Replacing fuel pump and possibly fuel lines. we got a Quote 0f 1400 to1600

First, determine if your fuel pumps are bad. Check the fuses, fuel pump relays and connections. Listen for whirring sounds when you turn the key to 'run' not start. You should hear an audible click and for one to two seconds, the fuel pumps should activate. NG, check the wiring carefully. The fuel pump relay is known to fail ambiguously and this is a pretty cheap part - much cheaper than changing out fuel pumps and hoses. The hoses don't usually break, but the fuel filter can get clogged up and the main pump can get knackered from a failed tank pump. Ensure to check voltage is at the terminals - changing fuel pumps won't fix electrical faults in the system. Good luck!
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1999 Meercury Sable. No electric to fuel pump

There are 2 fuses and a relay involved in this circuit but the lines that run power to the pump run partially exposed under the vehicle as well. Check the Interior Fuse, check the Fuse in the box under the hood and check to make sure you have voltage at the fuse under the hood. If these are good check for voltage on the wires going to the fuel pump at the fuel pump itself. You can do this with a multimeter and thumb tack. Use the thumb tack to puncture the insulation in the wires and test for voltage. If you don't have voltage there, start working your way back 12" at a time until you find the point where you have voltage to isolate the area of the break.
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