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I have a 65 hp mercury, that doesnt get spark, so it wont start. i just replaced the cdi and the coil, but for some reason the coil is not getting any juice from the battery any ideas on what it could be?

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  • geo_har May 27, 2009

    thanks i found out it is the distrubter coil

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Do you have a Deadman switch? Is the pin in? If yes, disconnect the battery and use an ohmmeter on the ends of the positive and negative main wires but do not cross connect. Loop positive end to positive end with ohmmeter in between to see if you have continuity or not from key. Turn and hold keyswitch to start position. You should have continuity on both POS and NEG respectfully from key to motor connection. Check NEG same way. Then check run position. This way you are checking the ignition side of the keyswitch although your starter does work. Just because the starter works does not mean the ignition is hot.

Posted on May 23, 2009

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2 Answers

Theres no spark and bike wont start


you will have to check lead to spark plug then lead to coil
if your not getting spark at plug it could be a number of things ingintion
or just a loose wire best of luck hope you solve it

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I have a 2010 Oliver City CPI, motor scooter. The engine wont start. The starter seems to work and theres gas in it. Tried the kickstarter and wont start. bad spark plug maybe?


My problem started like this,I found No spark so changed coil,cdi,voltage reg,eventualy found stator at fault,check pick up strip on flywheel and pick up pin on black pick up coil,this is fixed to stator and sends spark signal to cdi,mine were both rusty/dirty,I fitted a new stator,but now have light problems..stator seems to be to strong.

Jul 14, 2011 | 2011 Cpi Oliver City

1 Answer

I recently bought a 2002 kymco zing 125 ,it has been stood for a couple of years and not started.i have replaced the coil and new battery and also the cdi unit,it has had a new spark plug too and the carb...


You should replace the fuel also as fuel deteriorates over time.Drain the tank and replace with new fuel.Also drain the carb.as it will still have old fuel in it.

Jun 18, 2011 | 2005 Kymco Zing 125

3 Answers

My Rm 250 wont spark need to know the volts from stator to cdi plug. Got brand new cdi, stator , rotor and pick up coil but it still wont spark.


The Voltage From The Stator To The CDI Should Be Around 40 Volts(AC) At Cranking Speed. Be Sure Your Meter Is Set For (AC) Not (DC). The CDI Changes The (AC) Input Voltage To (DC) Output Voltage To The Primary Terminal At The Coil. An Electrical Shock Hazard Exist If Stator Voltage Is Checked With Engine Running. Always Perform This Test At Cranking Speed (R.P.M.) For SAFETY. 120 Volts (AC) Can Be Present With Engine Running.

May 22, 2011 | 2003 Suzuki RM 250

1 Answer

How to test CDI unit for KTM65 2009 to diagnose if faulty or not.


If you are able to use a digital volt meter and work your backwards from spark plug wire to coil to cdi to stator you can figure out where voltage stops.thats a fairly newer bike unless you really submerged that bike under water i dont think its the cdi box.it could be coil wire it could be coil.you want to check or change the cheaper parts before you go right to cdi because there not cheap.I have a yamaha banshee 350 and she was breaking up real bad.I thought because it was only happining on top end that the cdi was breaking down or stator was going bad.Found out with meter it was the coil wires and spark plug boots.These items have to have a certain amount of resistance or the do not conduct correctly.And spark plug wires and boots are not that exspensive.So thats why I say start from sparkplug boot and work your way back.Try that and Good Luck.

May 09, 2011 | 2009 KTM 65 SX

3 Answers

I got weak spark so wont start got new plug


sounds like oxidization on your timing plate take it out and clean it with a peice of sand paper

Mar 18, 2010 | 2001 Honda NSR 125 R

1 Answer

Suddenly became exremely difficult to start. Fuel ok. Battery fully charged. engine turns over like normal on the starter but just wont fire.


try to perform these :
1. Check the sparkplug if it is good or not,.if it will
ignite when you are going to start.if it doesnt ignite,replace with new one.but when after replacing it is still does not ignite,then its time to check the primary coil.You can check it by looking the wire coming from the said coil through the CDI..(mostly it is a black color with a little stripe of any color.) if you already found the said wire,start the motor and ground the said wire to the body with on & off motion.If while doing this you can notice a spark coming from it,then your primary coil is good.,Thus,its time to check your CDI or need to replace it.
But,if there is a fire in the sparkplug when you start the motorcycle but it doesnt work or fire at all,then you must clean the carburator.
Onthe other hand,if your motorcycle is a dynamo/contact point operated,you must check the "timing" into right settings,or give an importance to the condenser if it has a leak and may cause short during the motor will start..

Dec 05, 2009 | 2006 Aprilia Sportcity 125

1 Answer

1980 xs400 se will not get spark some wires burnt


possible the cdi unit went the journeyat the same time, only way to tell is to try another cdi. best of luck.

Nov 10, 2009 | 1980 Yamaha XS 400 SE

2 Answers

1996 zx11 getting sprk to one bank only


Hi and welcome to FixYa,

The voltage on the green wire must be pulsating when cranking/starting the bike, not steady. Confirm by similarly testing the voltage on the black wire on the left ignition coil. If the green still reads a constant voltage, then the CDI is faulty; to be more specific, most likely that the switching tansistor inside the CDI that drives the right ignition coil has shorted.

Good luck and thank you for asking FixYa.

Jul 09, 2009 | 1996 kawasaki GPZ 1100

3 Answers

Ktm 450sxf 07 wont start


The decompression valve has come apart in the engine. Tear it down!

Mar 29, 2009 | 2008 KTM 450 SX-F

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