Question about 1995-1997 Chevy 1500 Truck Ignition Starter Alarm Switch

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Weak spark at plug

Weak spark at spark plugs

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Check to see haw strong the spark is coming out the dist cap. If it is weak there, possible bad cap/rotor/coil/ module. Make sure the wire from the coil to the cap is good.

Posted on Nov 02, 2013

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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 spark


pull flywheel and replace sheer key on flywheel to get spark on time

Feb 23, 2014 | Garden

1 Answer

ZX7R weak spark


low battery
bad spark plugs if using old ones to test spark , how did you?
are all spark plugs weak.?
use a spark tester , or new spare spark plug to do the tests
gapped to factory spec.

Sep 22, 2013 | Motorcycles

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

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I tried using quick start on it, but all that did was make it sputter a bit, so I am assuming that the fuel is not reaching the cylinders, anyone have any ideas?


1) Check for spark remove one of the plugs, connect the plug wire to it and ground spark plug base to a good ground , such as the cylinder head , position the plug so you can see the electrodes , crank the engine over , a fat blue spark should be evident. 2)If the spark is good , check for one or more of the following possible malfunctions 1) Obstructed fuel line or filter.2) leaking head gasket(s)3) low compression. If the spark is not good, check one or more of the following a) Weak ignition coil(s) b) Weak CDI unit. c)Loose electrical connections. d) Dirty electrical connections. e)Loose or broken ignition coil ground wire. f) Broken or shorted high tension lead to the spark plug. Difficulty in starting. Check for fouled spark plugs, Improperly adjusted choke, contaminated fuel system, improperly adjusted carburetor,weak ignition unit,weak ignition coil (s), poor compression

Feb 05, 2011 | 1980 Yamaha XJ 650

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

Weak spark,willnot start,changed plug


A weak spark can be attributed to a number of issue:
1. Wire from the magnetto to the spark plug is saturated with oil (clean well with degreaser)
2. Spark plug cap deteriorated. (most are not easily replaceable)
3. Spark plug fouled (insure you are using new)
4. Significant build up of rust on the flywheel (lightly sand rust off)
5. Bad Magnetto or CDI (especially if it has gotten wet or is cracked.) Note: (Cost typically prohibitive for replacement).
6. Spark plug gap significantly out of specs. (Regap to specs, retry)

If you are certain you have a weak spark, these are typical causes. Often, more likely problem is carburation, fuel filter and/or fuel lines - which are much easier and less expensive fixes! Hope for the fuel lines being cracked...Good luck :)

Sep 25, 2010 | Garden

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

1 Answer

Weak spark on one side. When I test the plug on the block I can't even see it. While riding it seems to stop all together.


You don't say what make or model. try new spark plug and new spark plug caps. the spark plug caps on most machines are 5000 ohm caps and can be purchased for about $ 5 ( NGK brand) try this first. Always start with the cheap stuff first.

May 20, 2010 | Motorcycles

1 Answer

1986 gas club car weak spark replaced coil still same


How do you know that the spark is weak?
Replace spark plug.
Check spark plug wire for leaks.
Replace fuel.
Clean points and reset.
If there is a battery check that it is at 12.5 during starting.

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