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Why no spark on 3.5kVA inverter generator ?

No spark. Swapped ign coil with another gen with same model coil. Either coil works in other gen, neither works in problem gen. Checked earth to coil ok. Checked run switch. Checked oil level sensor. Actually also cleaned carbi bowl and jet and tested vac operated fuel pump while I had covers off. CDI unit fault ? How to confirm ? Can I meter out the alternator windings ? There must be some detail out there ?

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  • Tony
    Tony Nov 15, 2014

    Got it working again !



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  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
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Posted on Jan 02, 2017

  • 1388 Answers

SOURCE: Suzuki SE4000SED generator with no output

There was a day and time when generators were simple. There were no capacitors, regulators to control/adjust power to magnet or ground fault outlets. Winding getting hot indicates short, however could be bad capacitors. Rectifiers and capacitors must be removed from circuit to test properly. Here is a simple test that I use to find fault area. I use a small power supply (16v AC 1 amp like doorbell transformer) into the 110v outlet of generator. This should energize the armature magnet and actually produce voltage at commutator with brushes pulled off. You can slowly pull the starter rope to move the armature into a different positon the voltage will vary. If the ac windings are shorted there will be very little or no magnet. There is a seperate 110 v circuit at the 220v outlet to test (there are two 110v windings that make up the 220v outlet, one is also used for the 110v outlet). There is another winding that products voltage for the regulator that powers the magnet thru the brushes but I think that circuit is porbably working because of the heat in the windings. You might even have 110v power at the 220v outlet. As our parents told us over and over, be careful when working with electricity. Enjoy

Posted on Dec 08, 2008

  • 6966 Answers

SOURCE: 2007 wrf250 loosing power similar to running out of fuel

Hi and welcome to FixYa,

Initially, pls try without the fuel filter and replace the fuel hose with bigger inner diameter.

Good luck and Thank you for using FixYa. Happy Holidays.

Posted on Dec 20, 2008

  • 62 Answers

SOURCE: Kipor 3000ti generator, doesn't start, i checked

Drain carb bowl it could have water in the gas

Posted on Apr 07, 2009

  • 79 Answers

SOURCE: Won't continue running

This unit has a fuel solenoid on the carberator, which opens to allow fuel to the carberator. Check to see if this solenoid opens while cranking.

Posted on May 07, 2009

  • 274 Answers

SOURCE: Honda generator ei3000. Will run only a few mins

Tank filter not blocked? (Take tap off tank) Enough oil in motor? Try overfilling it slightly

Posted on Oct 23, 2009

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Back cylinder not firing. swapped coils and checked voltage at coils. generator seems to be pulsing.

To fire up the bike will need gas and a good spark on time.
Do you have a wet spark plugs on rear, if not, you have a carb problem (clogged jets, no fuel in carb chamber, torn diaphragm),
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Yes, the IC-2500 module is the cause of no spark.
I have swapped the module with a friend's generator to check.
my gen then runs fine. But must give the module back !
now I need to buy a replacement module, any idea where I can get one ?

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This gen won't start , good fuel, carb good get's air & fuel spark plug new. any ideas

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Hi there I'm stuck I don't know how to check the

Sorry but they either work or they dont.
If yours isn't working, replace it.
But before you replce it consider checking the other components, because ign mods are exspensive.
it sounds like you've been already checking the other stuff. heres what i'd check if your bike came to my shop.
1. battery fully charged, and can take a load. (weak batteries = weak ign power)
i have a bike that won't fire at all with weak battery. Make sure battery is good.
2. check for spark at plugs, make sure plugs are good. Pull plugs and turn motor over.
rest plug next to head and turn over, do not touch the plug while turning over
or you can be shocked.look for spark.
if you have spark , then you ign mod is working.
if no spark, then check #3
3. power to coils. check the power going into coils,
if power but no spark, then coil is bad.
if no power. check #4
4. power to coils comes from a ignition system ( points/ cdi /ign. module)
there is a stator and a rotor. and a signal generator. on your motor
the signal generator wire sends a signal to the cdi, every time the rotor rotates.
the ignition system (ign.mod) sends power to coil.
so if no signal to the cdi, then signal generator is bad
if signal going into cdi but not sending the power to the coils then the cdi/ ign. mod is bad.

Hope that helps
Best Regards
Big Al

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Iam working on a Honda cbr 600 2005. It was running and quit. Ihave repaced the computor and still no fire to the plugs.Have swapped #1 coil with #4 still no fire. The cam sensor appers to have...

Hi and welcome to FixYa,

A couple of initial checks:
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Hi, i have a clarke generator g900 ,no spark

this gen has a oil level sensor that will short the "primary" of the ignition coil as well as a spark enhancer that is called a CDI unit but the drawing does not show a Capacitor in or near it?
I hope this helps
Where did you get your replacement coil Colin?


Jun 22, 2009 | Electrical Supplies

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