Question about 1994 kawasaki GPZ 500 S - GPX 500 R

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The spark- plugs are not sparking, the engine turns but the engine is not firing. There is NO spark at the plugs.

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Try new coil the coil has to be grounded as well

Posted on Feb 27, 2009

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Hyosung ms3 250 battery fully charged engine turns over wont fire up also new spark plug fitted

has spark? has fuel going to carb? if you smell gas from the muffler or carb then it not burning check for spark pull plug touch away from the hole so you don't ignite the vapors on the engine look for a great blue red spark

Feb 24, 2013 | 2009 Hyosung MS3 250

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Yamaha 650 vstar not starting

did you check for spark ?
take the spark plug lead off and remove the spark plug
reconnect the loose spark plug to the spark plug lead - then place the spark plug on the engine and try to start - since you can see the live end of the plug - you should see a it sparking - do not touch the plug with the ignition on - or you will get a good jolt
test all spark plugs - if not here then it is probably a fuel problem

Jan 06, 2013 | Yamaha V Star Classic 650 Motorcycles

1 Answer

Has fuel and spark but wont fire engine turns over so starter ok

If by what you mentioned is right the engine should fire but there is an issue and could be relative to poor intensity of spark, poor plugs, poor fuel delivery and finally poor TIMING.
So you need to check the above one by one to confirm the fault.
The use a good timing check is important, so also to check the spark plugs.

Feb 02, 2011 | 2000 Harley Davidson FXD Dyna Super Glide

1 Answer

I have a hunter 250 motorcycle has 960 ks on the clock but the bike will not start it turns over but oes not fire

You have either an ignition problem or a fuel problem. To determine which, pull your spark plug wire off and put another known good spark plug in the wire. Turn the engine over and watch for the plug to spark. If it sparks, remove the other plug and install this one if it is the correct plug for the engine. Try to start the engine. If it doesn't start, you probably have a fuel problem. I'd drain the float bowl of the carb and the tank. Refill with fresh fuel and try to start again.

Good luck

Nov 28, 2010 | Harley Davidson XLH 1000 Sportster...

1 Answer

Engine starts back firing. When I check the plugs, the back cyl plug is black. Tells me fuel but should be missing instead of backfiring. Could the resistance from the plug be causing the plug wires to...

On you motorcycle the wire is part of the coil and there are two coils. Either you have a bad coil, a bad spark plug , or a bad spark plug cap. NGK makes some spark plug caps for about $5 each. Replace both of your spark plug caps and spark plugs. This should solve your problem.

Sep 13, 2010 | 2005 Suzuki Boulevard S83

1 Answer

My bike won't start

For an engine ti fire, it must have both fuel and spark..
After cranking to start without success, remove a spark plug and check to see it is wet, or dry.
If it's wet, you have fuel at least, and possibly no spark. If dry, you either have spark and fuel, or spark and no fuel.
2. Check spark by connecting the plug you removed to the HT cable and cranking the engine. A nice blueish spark should occur across the plug. Make sure the plug's body is in contact with the engine.
So if there's spark then there's no fuel
If there's fuel, theres no spark
When you have determine which is missing, work on that component.
Of course it could be other things too, but these are the eaiest to test.

Apr 11, 2010 | 1995 Honda VT 600 C Shadow

2 Answers

My fzr250 rr wont start its was running a day ago went to start it today but it will only turn over but wont catch. my battery is fine and im out of ideas . What do you think it could be

@Two things, either out of gas or no spark. Check the fuel, if you have to get it primed, squirt a little gas in the cylinder, if that doesn't fire, you have no spark, pull out a plug and let it rest on a ground, and hit the starter, if there is no spark, your coils are dead, or computer, or ignitor, check it out, Hope this helps.

Apr 02, 2010 | 1987 Yamaha FZR 250

1 Answer

Wont fire

You have to check of there is sparks at the spark plug and also if the fuel is being injected to the combustion chamber.
Crank start the engine for a short while and thn remove one spark plug, if fuel is injected you will see tht the plug is wet.
To check for sparks to the plug, wipe tht plug dry if its wet due to gas, thn earth the spark plug body to the engine and crank start, if theres sparks you will see.
If you both of these thn it the engine must fire.
I guess one is missing.
Hope this helps!

Dec 19, 2009 | 2005 Triumph Sprint ST

1 Answer

Hi, my harley doesnt fire until i release the starter button.

Take your battery out and take it somewhere to have it tested. It sounds like your battery voltage is dropping below 10 volts. I'm curious to know how you discovered that the plugs doesn't fire until you release the starter button. On most of the Twin Cam engines, the engine is equipped with a compression sensor and the plugs will not fire unless the engine has compression. In other words, you can't check for the spark plugs firing like you to do by taking the out and laying them on the cylinder heads.

To check for spark, leave you old plugs in the engine. Get another set of spark plugs and put them in the wires and ground them. Turn the ignition switch on and spin the engine. Check to see if the plugs are firing. I made up a set of "test plugs" that have a short "ground strap" on them with alligator clips to ground them with.

Oct 07, 2009 | 2000 Harley Davidson FXSTS Springer...

1 Answer

Won't start

1: remove spark plug from engine...connect the spark plug cap to the plug...and make the other end ground somewhere on the cylinder head...kickstart it and check for fire...if not change spark plug and test spark again...if there is no fire will have to get a owner manual to check electrical component with impedence...if fire is ok .....and wont start
2: put some gaz into the spark plug hole put the spark plug on with wiring and crank it again
if it start and stop after a moment...then you're carburetor is not providing fuel to motor....
3: if it is not starting yet....check for compression or blown crank seal...or leak

Sep 14, 2009 | 2001 Yamaha TW 200

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