Klf 300 no spark at spark plug but got 12 volts both side of coil hope you can help its a 1998 model

hi moparjoe499.
i am not much good on bikes and i am sure some one might help you out much better than me.
but to try and help you out,try this link.
Power to coils but no spark
or this one.
No Spark Whats Wrong
or this one.
RUN 2 1 2

Only one side of engine runs? Could be a head gasket problem on the right. It is a mechanical issue, not an electronic or electrical possibility as in newer cars. Do a compression test of the engine to see if the right side has compression failure from a bad head gasket.
A 1974 model would be a 12 volt system, not 6 volts. The last 6 volt systems were in the 1950's. If your coil is 12 volt and the left side runs and fires good, there is nothing wrong electrically. Check for spark on the right side, it should have spark on all cylinders if good spark on the left side. If no spark on the right side,. maybe a problem with the rotor or the distributor cap.

If the ASD (in your case MFI) is working and your getting fuel and no spark.You need to test the coil for power ,look at the coil terminal the middle is power (B+) or 12 volts. Each other side is for ignition signal for that cylinder, Just measure the middle of the 3 wire with key on if you have 12 volts you are going to need a ECM ,There is no programing needed just match it drop in and play

You are at thhe right trail what controls spark is coil pack crank sensor sparkplugs and plug wire but the most important is power . I mean 12 volt connections and ground This includes checking fuses you need a simple volt meter doesnt have to expensive or fancy just to pick up 12 volts let start with fuses in the engine juction box (there not mark to what it belongs to) make sure none are open. especially fuse 19 and 24 , next go to the crank sensor make sure the tabs are snuggly on now to the coil pack there is a red and light green wire this comes from ignition and feeds 12 volts at the coil pack measure that voltage is it 12 volts if not correct it this is from ignition switch ( you can make a tool that feed 12 volt with a wire and a fuse in series and attatch it to battery and the primary wire this is known as hot wire) next go to the ECM wiggle the wires see if that get a connection going if not go back to the ICM here are the wire you are to measure the tan light green, this is from ECM and it is pulsed it measure 5vlts to 0 volts switched then measure the tan orange the same thing 5 volts to zero,then tan white again 5vlts to zero. any one of these 5 to zero fails you fix is the ecm

check you coils and pick up i have had to replace the pick up on those little klf alot
Good Luck
M.Woodring

No spark.This is indication of faulty spark plugs.But spark plugs get power to spark from coil pack. So get the connection between coil pack to spark plugs checked.If it checked out ok then its faulty spark plugs that has to be replaced,but if coil pack has no power then its faulty coil pack that has to be replaced.But if coil pack and spark plugs both checked out ok then this problem is fuel related problem.In this case the fuel pressure needs to be checked.The fuel pressure can be easily checked at any local car garage.If its low then its faulty fuel pump as well as clogged fuel filter,which has to be replaced. The voltage for spark plugs and coil pack in voltmeter will show 12 volts.Its a 12 volt part.If there is no or low volt then there is problem with the part. ------------------ Keep updated with any more queries.Thanks.

bad coil

2000 ford escort ZX2. 4cyl . No spark at the spark plug. Wires are good.