Question about 1986 Honda VT 500 C Shadow

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Firing is weak on one plug using same coil - 1986 Honda VT 500 C Shadow

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Cheak spark pug to see if its foiled, if it is just replace it sould fix it

Posted on Nov 28, 2012

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1 Answer

It is getting gas and fire put new plugs and wires the fire is weak but still will not start


By "fire," I assume you may mean SPARK. If the spark is weak, replace the coil pack.

May 04, 2015 | 2002 Chrysler PT Cruiser

1 Answer

I have a 2002 pt cruiser it is getting gas and fire but the fire is weak


Weak spark could be bad coil(s) or ignition module. Even a bad groud strap can cause this, but most common is module.

May 04, 2015 | 2002 Chrysler PT Cruiser

2 Answers

Weak fire on pocket bike


Hi, I do a lot with these bikes, I think if you are getting a weak spark there is a couple things to check. First, do you understand how it builds the power to create the spark? The magnet in the flywheel has to be very close to the magnito or coil, if the gap is too much it will cause a weak spark, if the magnet is weak, weak spark, if the coil is shorting internally, weak spark. If the plug wire is damaged, weak spark. I hope this helps you.

Jan 25, 2015 | Quad 47 cc / 49 cc Pocket Mini Bike...

1 Answer

WEAK FIRE


check cable, spark plug, spark plug cap for good resistance levels. then check the coil. easy fix.

May 15, 2012 | RTO 200cc Full Size Four Wheeler ATV

2 Answers

Just firing on one coil but replaced it and still not working


You may need to replace the plug wires after many miles they become more resistive and deliver weak or no spark to the plugs. It could also be the ignition module it is common for GM vehicles in that year range to have failing modules.

Jan 13, 2011 | 1988 Buick Century

3 Answers

Trouble code P0302. Changed plugs.They were well used.49000 miles.Still runs rough. Fire on #2 looks weak. Maybe needs new coil?


1 ensure the plugs gap is set to the manufatures specifications.

if coil was weak you would see weak on all cylenders not just on 2

2 check timing and air fuel mix are correct.


i hope this was helpful

Dec 12, 2010 | 2008 Dodge Avenger

1 Answer

I GOT NO FIRE ON THE PLUGS


The spark gets power to spark from coil packs.If the connection between coil pack to spark plug is weak or loose then it will not fire.But if the coil pack as well as the connection between coil pack to spark plugs checked ok then its faulty or dirty spark plugs.Clean the spark plugs with the carb cleaner liquid and let it completely dry.Then check.Also check the voltage between coil pack to spark plugs.If both checked out ok then the other possibility can be weak crank shaft sensor. Thanks.Helpmech.

Nov 12, 2010 | 1995 Dodge Dakota

1 Answer

Firing on one cyl. weak spark


does each plug have its own seperate coil? if so, i would say the coil for the weak cylinder is faulty

May 23, 2010 | 2001 Yamaha V Star 1100 Classic

2 Answers

No spark on one cylinder on a 2000 ford focus 2.0


The coil fires two plugs at one time, so if the other plug is fireing also the problem maybe a wire or plug. Or possible bad coil if fire is weak on one side. Common problem.

Dec 29, 2009 | 2000 Ford Focus

1 Answer

My honda 1100 seems to have weak red fire to plug


check the coil and the plug wire see if and there is crossion in the boot and if it doubt replace the coil wire first. Be sure your battery voltste is up and then if you have a problem test the primary side and secondary wire side of the coil. if there is to much resistance replace the coil. Also check the coil for loose wires at the coil and the wire feed for the coil on oppiste end.

Nov 12, 2009 | 1992 Honda VT 1100 C Shadow

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